Lee Johnston

Clarke, A. S., C. Faulk, G. C. Shurson, D. D. Gallaher, and L. J. Johnston.  2023.  Evaluation of feeding beta-hydroxy-beta methylbutyrate (HMB) to mouse dams during gestation on birth weight and growth variation of offspring.  Animals 13(20) Doi:10.3390/ani13203227.     

Yang, Z., P. E. Urriola, L. J. Johnston, and G. C. Shurson.  2023.  A systems approach to evaluate nitrogen utilization efficiency and environmental impacts of swine growing-finishing feeding programs in U.S. pork production systems.  J. Anim. Sci. 101.  https://doi.org/10.1093/jas/skad188  

Medida, R. L., A. K. Sharma, Y. Guo, L. Johnston, P. E. Urriola, A. Gomez, and M. Saqui-Salces.  2023.  Dietary zinc supplemented in organic form changes markers of inflammatory response in swine intestinal cells.  Animals 13, 2519. https://doi.org/10.3390/ani13152519

Lozinski, B. M., B. Frederick, Y. Li, M. Saqui-Salces, G. C. Shurson, P. E. Urriola, M. L. Wilson, and L. J. Johnston. 2022. Effects of water quality on growth performance and health of nursery pigs. Transl. Anim. Sci. 6. https://doi.org/10.1093/tas/txac002

Medida, R. L., A. Kumar Sharma, Y. Guo, L. Johnston, P. E. Urriola, A. Gomez, and M. SaquiSalces. 2022. Dietary zinc restriction affects the expression of genes related to immunity and stress response in the small intestine of pigs. J. Nutr. Sci. 11, e104. doi:10.1017/jns.2022.105

Lochner, H. L., M. L. Hutchinson, M. L. Wilson, A. W. Bianco, L. J. Johnston, J. L. Prigge, and K. L. Martinson. 2022. Characteristics and sodium pentobarbital concentrations of equine mortality compost piles in the Upper Midwest. J. Equine Vet. Sci. 114:104000

Xie, F., J. Shen, T. Liu, M. Zhou, L. J. Johnston, J. Zhao, H. Zhang and X. Ma. 2022. Sensation of dietary nutrients by gut taste receptors and its mechanisms. Crit. Rev. Food Sci. Nutr. DOI: 10.1080/10408398.2021.202138

Wang, Z., Y. Chen, W. Wang, C. Huang, Y. Hu, L. Johnston, and F. Wang. 2022. Dietary supplementation with fine-grinding wheat bran improves lipid metabolism and inflammatory response via modulating the gut microbiota structure in pregnant sow. Front. Microbiol. DOI: 10.3389/fmicb.2022.835950

Wu, J., Y. Zhao, X. Wang, L. Kong, L. J. Johnston, L. Lu, and X. Ma. 2022. Dietary nutrients shape gut microbes and intestinal mucosa via epigenetic modifications. Crit. Rev. Food Sci. Nutr. 62(3):783-797. Doi:10.1080/10408398.2020.1828813

Wang, L., S. Zhang, L. J. Johnston, C. L. Levesque, J. Yin, and B. Dong. 2022. A systematic review and meta-analysis of dietary fat effects on reproductive performance of sows and growth performance of piglets. J. Anim. Sci. Biotech. 13:12. https://doi.org/10.1186/s40104-021- 00662-3

Wu, J., Z. Lin, X. Wang, Y. Zhao, J. Zhao, H. Liu, L. J. Johnston, L. Lu, and X. Ma. 2022. Limosilactobacillus reuteri SLZX19-12 protects the colon from infection by enhancing stability of gut microbiota and barrier integrity and reducing inflammation. Microbiol. Spectrum. Vol. 10. https://doi.org/10.1128/spectrum.02124-21

Ma, N., X. Chen, C. Liu, Y. Sun, L. J. Johnston, and X. Ma. 2022. Dietary nutrition regulates intestinal stem cell homeostasis. Crit. Rev. Food Sci. Nutr. DOI:10.1080/10408398.2022.2087052

Ma, N., X. Chen, L. Johnston, and X. Ma. 2022. Gut microbiota-stem cell niche cross-talk: a new territory for maintaining intestinal homeostasis. iMeta. https://doi.org/10.1002/imt2.54

Zhang, Y., Z. Lin, L. Wang, X. Guo, Z. Hao, Z. Li, L. J. Johnston, and B. Dong. 2022. Cooperative interaction of phenolic acids and flavonoids contained in activated charcoal with herb extracts, involving cholesterol, bile acid, and FXR/PXR activation in broilers fed with mycotoxin-containing diets. Antioxidants 11, 2200. Doi.org/10.3390/antiox11112200

Schieck-Boelke, S., K. Stalder, L. Johnston, and S. Hoyer. 2022. Providing relevant educational programming through teleconference to place-bound audiences. J. Natl. Assoc. County Agr. Agents vol. 15, issue 2. https://www.nacaa.com/file.ashx?id=a5e3a811-0673-4ef3-9bb1- f30637df4ffe

Li, Y.Z., S. Q. Cui, S. K. Baidoo, and L. J. Johnston. 2021. Evaluation of sow caliper for body condition measurement of gestating sows. J. Swine Health Prod. 29:245-252. http://www.aasv.org/shap.html

Zhang, S., J. Zhao, F. Xie, H. He, L. J. Johnston, X. Dai, C. Wu, and X. Ma. 2021. Dietary fiber-derived short-chain fatty acids: a potential therapeutic target to alleviate obesity-related non-alcoholic fatty liver disease. Obesity Reviews e13316. https://doi.org/10.1111/obr.13316.

Law, K., B. Lozinski, I. Torres, S. Davison, A. Hilbrands, E. Nelson, J. Parra-Suescun, L. Johnston, and A. Gomez. 2021. Disinfection of maternal environments is associated with piglet microbiome composition from birth to weaning. Amer. Soc. Microbiol. mSphere 6:e00663-21. https://doi.org/10.1128/mSphere.00663-21

Zhu, Y., R. Cox, L. J. Johnston, C. Reese, F. Forcella, R. W. Gesch, and Y. Z. Li. 2021. Effects of camelina press cake fed to growing-finishing pigs on pork quality. Appl. Anim. Sci. 37:357-366. https://doi.org/10.15232/aas.2021-02161

Liu, C., L. Ji, J. Hu, Y. Zhao, L. J. Johnston, X. Zhang, and X. Ma. 2021. Functional amino acids and autophagy: Diverse signal transduction and application. Int. J. Mol. Sci. 22:11427. https://doi.org/10.3390/ijms222111427

Liu, H., L. J. Johnston, F. Wang, and X. Ma. 2021. Triggers for the Nrf2/ARE Signaling Pathway and Its Nutritional Regulation: Potential Therapeutic Applications of Ulcerative Colitis. Int. J. Mol. Sci. 22:11411. https://doi.org/10.3390/ijms222111411

Hilbrands, A. M., L. J. Johnston, R. B. Cox, F. Forcella, R. Gesch, and Y. Z. Li. 2021. Effects of increasing the dietary inclusion of camelina cake on growth performance of growing-finishing pigs. Transl. Anim. Sci. 5(3). https://doi.org/10.1093/tas/txab140

Zhou, M., L. J. Johnston, C. Wu, and X. Ma. 2021. Gut microbiota and its metabolites: Bridge of dietary nutrient and obesity-related diseases. Critical Rev. Food Sci. Nutr. https://doi.org/10.1080/10408398.2021.1986466

Huang, C., Z. Fan, D. Han, L. J. Johnston, X. Ma, and F. Wang. 2021. Pyrroloquinoline quinone regulates the redox status in vitro and in vivo of weaned pigs via the Nrf2/HO-1 pathway. J. Anim. Sci. Biotech. 12:77. https://doi.org/10.1186/s40104-021-00595-x

Li, Y. Z., W. F. Lazarus, C. Reese, A. M. Hilbrands, R. B. Cox, F. Forcella, R. W. Gesch, and L. J. Johnston. 2021. Integrating camelina into organic pig production – Impact on growth performance of pigs, costs, and returns. Front. Sustain. Food Syst., 20 December 2021. https://doi.org/10.3389/fsufs.2021.759721

Rosa-Medina, E., P. Urriola, C. Faulk, L. Johnston, and G. Shurson. 2021. Effect of supplementing lactation and nursery pig diets with capsaicin on growth performance and gene expression of nursery pigs. Transl. Anim. Sci. 5(4). https://doi.org/10.1093/tas/txab201

Lochner, H. L., K. L. Martinson, A. W. Bianco, M. L. Hutchinson, M. L. Wilson, L. J. Johnston, and K. E. Dentzman. 2021. Owner and veterinarian perceptions of equine euthanasia and mortality composting. J. Equine Vet. Sci. 99:103402. https://doi.org/10.1016/j.jevs.2021.103402

Zhu, Y., L. J. Johnston, M. Reese, E. Buchanan, J. Tallaksen, A. Hilbrands, and Y. Z. Li. 2021. Effects of cooled floor pads combined with chilled drinking water on behavior and performance of lactating sows under heat stress. J. Anim. Sci. 99(3). doi.org/10.1093/jas/skab066

Zhang, J., S. Zhu, N. Ma, L. J. Johnston, C. Wu, and X. Ma. 2021. Metabolites of microbiota response to tryptophan and intestinal mucosal immunity: A therapeutic target to control intestinal inflammation. Medicinal Research Reviews https://doi.org/10.1002/med.21752

Lozinski, B. M., B. Frederick, Y. Li, M. Saqui-Salces, G. C. Shurson, P. E. Urriola, M. L. Wilson, and L. J. Johnston. 2021. Effects of water quality on growth performance and health of nursery pigs. Transl. Anim. Sci. (Accepted)

Holen, J. P., P. E. Urriola, M. Schwartz, J. C. Jang, G. C. Shurson, and L. J. Johnston.  2020.  Effects of supplementing late gestation sow diets with zinc on pre-weaning mortality of pigs, post-weaning performance of pigs, and sow performance under commercial conditions.  Transl. Anim. Sci. 4(2):519-530.  doi.org/10.1093/tas/txaa010

Li, Y. Z., L. J. Johnston, and M. S. Dawkins.  2020.  Utilization of optical flow algorithms to monitor development of tail biting outbreaks in pigs.  Animals 10, 323; doi:10.3390/ani10020323.

Ma, N., T. He, L. J. Johnston, and X. Ma.  2020.  Host-microbiome interactions:  The aryl hydrocarbon receptor as a critical node in tryptophan metabolites to brain signaling.  Gut Microbes 11:1203-1219.  doi.org/10.1080/19490976.2020.1758008

Wang, Y., S. Han, J. Zhou, P. Li, G. Wang, H. Yu, S. Cai, X. Zeng, L. J. Johnston, C. L. Levesque, and S. Qiao.  2020.  Effects of dietary crude protein level and N-carbamylglutamate supplementation on nutrient digestibility and digestive enzyme activity of jejunum in growing pigs.  J. Anim. Sci. 98(4):1-10.  doi:10.1093/jas/skaa088

Holen, J. P., L. J. Johnston, P. E. Urriola, J. E. Garrett, and G. C. Shurson.  2020.   Comparative digestibility of polysaccharide-complexed zinc and zinc sulfate in diets for gestating and lactating sows.  J. Anim. Sci. 98(4):1-14.  doi:10.1093/jas/skaa079

Yang, Z., P. Urriola, A. Hilbrands, L. Johnston, and G. Shurson.  2020.  Effects of feeding high protein corn distillers dried grains and a mycotoxin mitigation additive on growth performance, carcass characteristics, and pork fat quality of growing-finishing pigs.  Transl. Anim. Sci. 4(2):666-681.  doi.org/10.1093/tas/txaa051

Bai, Y. J. Zhao, S. Tao, X. Zhou, Y. Pi, W. J. J. Gerrits, L. J. Johnston, S. Zhang, H. Yang, L. Liu, S. Zhang, and J. Wang.  2020.  Effect of dietary fiber fermentation on short-chain fatty acid production and microbial composition in vitro.  J. Sci. Food Agric.  https://doi.org/10.1002/jsfa.10470

Zhu, Y., Y. Z. Li, M. H. Reese, E. S. Buchanan, J. E. Tallaksen, and L. J. Johnston.  2020.  Behavior and performance of suckling piglets provided three supplemental heat sources.  Animals 10(7):1155.  Doi: 10.3390/ani10071155 

Wang, L., L. Wang, J. Zhou, Q. Hu, B. Huang, Z. Lyu, L. Johnston, and C. Lai.  2020.  Comparison of regression and fat-free diet methods for estimating ileal and total tract endogenous losses and true digestibility of fat and fatty acids in growing pigs.  J. Anim. Sci. 98(12):1-9.  doi:10.1093/jas/skaa376

Wu, J., Y. Zhao, X. Wang, L. Kong, L. J. Johnston, L. Lu, and X. Ma.  2020.  Dietary nutrients shape gut microbes and intestinal mucosa via epigenetic modification.  Food Sci. Nutr.  https://doi.org/10.1080/10408398.2020.1828813

Zhang, J., S. Zhu, N. Ma, L. J. Johnston, C. Wu, and X. Ma.  2020.  Metabolites of microbiota response to tryptophan and intestinal mucosal immunity:  A therapeutic target to control intestinal inflammation.  Med. Res. Rev.  https://doi.org/10.1002/med.21752

Yang, Z., P. E. Urriola, A. Hilbrands, L. J. Johnston, and G. C. Shurson. 2020. Effects of feeding high-protein corn distillers dried grains and a mycotoxin mitigation additive on growth performance, carcass characteristics, and pork fat quality of growing–finishing pigs1. Transl. Anim. Sci. 4:666–681. doi: 10.1093/tas/txaa051

Holen, J. P., L. J. Johnston, P. E. Urriola, J. E. Garrett, and G. C. Shurson. 2020. Comparative digestibility of polysaccharide-complexed zinc and zinc sulfate in diets for gestating and lactating sows. J. Anim. Sci. 98:1–14. doi: 10.1093/jas/skaa079

Holen, J. P., P. E. Urriola, M. Schwartz, J. C. Jang, G. C. Shurson, and L. J. Johnston. 2020. Effects of supplementing late gestation sow diets with zinc on pre-weaning mortality of pigs under commercial rearing conditions. Transl. Anim. Sci. 4:1-12. doi.org/10.1093/tas/txaa010

Tallaksen, J., L. Johnston, K. Sharpe, M. Reese, and E. Buchanan.  2019.  Reducing life cycle fossil energy and greenhouse gas emissions for Midwest swine production systems.  J. Cleaner Prod. 246:118998.  10.1016/j.jclepro.2019.118998

Hung, Y. T., A. R. Hanson, P. E. Urriola,  L. J. Johnston, B. J. Kerr, and G. C. Shurson.  2019.  Addition of tert-butylhydroquinone (TBHQ) to maize oil reduces lipid oxidation but does not prevent reductions in serum vitamin E in nursery pigs.  J. Anim. Sci. Biotechnol. 10, 51.  doi.org/10.1186/s40104-019-0362-5

Zeng, Z. K., P. E. Urriola, J. R. Dunkelberger, J. M. Eggert, R. Vogelzang, G. C. Shurson, and L. J. Johnston.  2019.  Implications of early life indicators for survival rate, subsequent growth performance, and carcass characteristics of commercial pigs.  J. Anim. Sci. 97:3313-3325.  doi: 10.1093/jas/skz223

Wang, Y. M., H. T. Yu, J. Y. Zhou, X. F. Zeng, G. Wang, S. Cai, S. Huang, Z. P. Zhu, J. J. Tan, L. J. Johnston, C. L. Levesque, and S. Y. Qiao.  2019.  Effects of feeding growing-finishing pigs with low crude protein diets on growth performance, carcass characteristics, meat quality and nutrient digestibility in different areas of China.  Anim. Feed Sci. Tech. 256:114256.   doi.org/10.1016/j.anifeedsci.2019.114256

Yang, Z., P. E. Urriola, A. Hilbrands, L. J. Johnston, and G. C. Shurson.  2019.  Growth performance of nursery pigs fed diets containing increasing levels of a novel high-protein corn distillers dried grains with solubles.  Transl. Anim. Sci. 3(1):350-358.  doi.org/10.1093/tas/txy101

Sun, M., N. Ma, T. He, L. J. Johnston, and X. Ma.  2019.  Tryptophan (Trp) modulates gut homeostasis via aryl hydrocarbon receptor (AhR).  Critical Rev. Food Sci. Nutr.  doi.org/10.1080/10408398.2019.1598334

Sharpe, K. T., M. H. Reese, E. S. Buchanan, J. E. Tallaksen, K. A. Janni, and L. J. Johnston.  2018.  Electrical and thermal energy consumption in Midwest commercial swine facilities.  Appl. Eng. Agric. 34(5):857-864.  (doi:10.13031/aea.12771)

Li, Y., H. Zhang, L. J. Johnston, and W. Martin.  2018.  Understanding tail biting in pigs through social network analysis.  Animals 8(1):13. (doi:10.3390/ani8010013)

Urriola, P. E., J. A. Mielke, Q. Mao, Y. T. Hung, J. F. Kurtz, L. J. Johnston, G. C. Shurson, C. Chen, and M. Saqui-Salces.  2018.  Evaluation of a partially de-oiled microalgae product in nursery pigs diets.  Translational Animal Sci. 2:169-183. https://doi.org/10.1093/tas/txy013

Holen, J. P., Z. Rambo, A. M. Hilbrands, and L. J. Johnston.  2018.  Effects of dietary zinc source and concentration on performance of growing-finishing pigs reared with reduced floor space.  Prof. Anim. Sci. 34:133-143.  Selected as Editor’s Choice paper for April issue.

Zhang, J., X. Chen, P. Liu, J. Zhao, J. Sun, W. Guan, L. Johnston, C. Levesque, P. Fan, T. He, G. Zhang, and X. Ma.  2018.  Dietary Clostridium Butyricum induces a phased shift in fecal microbiota structure and increases the acetic acid-producing bacteria in a weaned piglet model.  J. Agric. Food Chem. 66(20):5157-5166.  (doi:10.1021/acs.jafc.8b01253)

Yang, Z., P. E. Urriola, A. Hilbrands, L. J. Johnston, and G. C. Shurson.  2018.  Growth performance of nursery pigs fed diets containing increasing levels of a novel high protein distillers dried grains.  Translational Anim. Sci. 3(1):134-142.  (doi:  10.1093/tas/txy101)

Li, Y., S. Cui, X. Yang, L. Johnston, and S. Baidoo.  2018.  Minimal floor space allowance for gestating sows kept in pens with electronic sow feeders on fully-slatted floors.  J. Anim. Sci. 96:4195-4208. 

Haitao Y., X. Ding, L. Shang, X. Zeng, H. Liu, N. Li, S. Huang, Y. Wang, G. Wang, S. Cai, M. Chen, C. L. Levesque, L. J. Johnston, S. Qiao.  2018.  Protective ability of biogenic antimicrobial peptide Microcin J25 against enterotoxigenic Escherichia Coli-induced intestinal epithelial barrier dysfunction and inflammatory responses in IPEC-J2 cells.  Front. Cell. Infect. Microbiol.  July 13.  (doi:10.3389/fcimb.2018.00242)

Chen, X., P. Song, P. Fan, T. He, D. Jacobs, C. L. Levesque, L. Johnston, L. Ji, X. Ma, Y. Chen, N. Ma, J. Zhao, and J. Zhang. 2018.  Moderate dietary protein restriction optimized gut microbiota and mucosal barrier in growing pig model.  Front. Cell. Infect. Microbiol.  July 18.  (doi: 10.3389/fcimb.2018.00246)

Liu, P., J. Zhao, W. Wang, P. Guo, W. Lu, C. Wang, L. Liu, L. Johnston, Y. Zhao, X. Wu, C. Xu, J. Zhang, and X. Ma.  2018.  Dietary corn bran improved the diversity of microbial communities and IL-10 production in weaned pigs.  Front. Microbiol. 9:1 – 10.  (doi:  10.3389/fmicb.2018.02090)

Zhang, J., J. Sun, X. Chen, C. Nie, J. Zhao, W. Guan, L. Lei, T. He, Y. Chen, L. Johnston, J. Zhao, and X. Ma.  2018.  Combination of Clostridium butyricum and corn bran optimized intestinal microbial fermentation using a weaned pig model.  Front. Microbiol. Vol 9.  (doi: 10.3389/fmicb.2018.03091)

Harris, E., M. A. Mellencamp, L. J. Johnston, R. B. Cox, and G. C. Shurson.  2018.  Effectiveness of different corn dried distillers grains with solubles feeding strategies and increasing the time intervals between the second Improvest dose and slaughter of immunologically castrated pigs on belly and pork fat quality.  Meat Sci. 135:62-73. 

Liu, P., J. Zhao, P. Guo, W. Lu, C. L. Levesque, L. J. Johnston, C. Wang, L. Liu, J. Zhang, N. Ma, S. Qiao, and X. Ma.  2017.  Dietary corn bran fermented by Bacillus Subtilis MA139 decreased gut cellulolytic bacteria and microbiota diversity in finishing pigs.  Front. Cell. Infect. Microbiol. 7:526. (doi: 10.3389/fcimb.2017.00526) 

Cottingim, K.M., L.J. Johnston, A.M. Hilbrands, G.C. Shurson, and P.E. Urriola. 2017. Ultraviolet irradiation of spray dried porcine plasma does not affect the growth performance of nursery pigs when compared with non-irradiated bovine plasma. J. Anim. Sci. 95:3120-3128.

Cottingim, K.M., L.J. Johnston, A.M. Hilbrands, P.E. Urriola, and G.C. Shurson. 2017 Comparative effects of feeding ultraviolet light irradiated spray dried porcine plasma and non-irradiated spray dried bovine plasma on growth performance of nursery pigs. J. Anim. Sci. 95:3120-3128.

Harris, E.K., M.A. Mellencamp, L.J. Johnston, R.B. Cox, and G.C. Shurson. 2017. Effect of time interval between the second Improvest® dose and slaughter and corn dried distillers grains with solubles feeding strategies on carcass composition, primal cutout, and pork quality of immunologically castrated pigs. Meat Sci. 127:13-20.

Harris, E.K., M.A. Mellencamp, L.J. Johnston, and G.C. Shurson. 2017. Growth performance of immunologically castrated pigs slaughtered at 5, 7, or 9 weeks after the second Improvest dose and fed diets containing corn dried distillers grains with solubles. J. Anim. Sci. 95:806-819. doi:10.2527/jas.2016.0510.

Hilbrands, A.M., L. Jacobson, B. Hetchler, C. Reese, and L.J. Johnston. 2017. Research room design using artificial heat sources to implement heat stress studies of pigs. Appl. Eng. Agric. 33:881-889. doi.org/10.13031/aea.12398.

Holen, J.P., Z.J. Rambo, A.M. Hilbrands, and L.J. Johnston. 2017. Effects of dietary zinc source and concentration on performance of growing-finishing pigs reared with reduced floor space. J. Anim. Sci. 95(Suppl. 1):184. doi:10.2527/asasmw.2017.380.

Johnston, L.J., D.W. Rozeboom, R.D. Goodband, S.J. Moeller, M.C. Shannon, and S.J. Schieck. 2017. Effect of floor space allowances on growth performance of finishing pigs marketed at 138 kilograms. J. Anim. Sci. 95:4917-4925.

Li, Y.Z., L.H. Wang, and L.J. Johnston. 2017. Effects of social rank on welfare and performance of gestating sows housed in two group sizes. J. Swine Health Prod. 25:290-298.

Li, Y.Z., H.F. Zhang, L.J. Johnston, W. Martin, J.D. Peterson, and J.F. Coetzee. 2017. Effects of tail docking and tail biting on performance and welfare of growing-finishing pigs in a confinement housing system. J. Anim. Sci. 95: 4835-4845. doi:10.2527/jas2017.1571.

Mielke, J.A., P.E. Urriola, M. Saqui-Salces, L.J. Johnston, and G.C. Shurson. 2017. Growth performance of nursery pigs fed microalgae carbohydrate product. J. Anim. Sci. 95(Suppl. 1):103. doi: 10.2527/asasmw.2017.12.215.

Villela, C.C.E.J., R.B. Cox, G.C. Shurson, K.M. Compart, P.E. Urriola, and L.J. Johnston. 2017. Effects of adding minimally refined cottonseed oil or crude glycerol to diets containing 40% corn distillers dried grains with solubles (DDGS) on growth performance, carcass characteristics and pork fat firmness of growing-finishing pigs. J. Anim. Sci. 95(7):3057-3067. doi: 10.2527/jas2017.1383.

Hanson, A.R., P.E. Urriola, L. Wang, L.J. Johnston, C. Chen, and G.C. Shurson. 2016. Dietary peroxidized maize oil affects the growth performance and antioxidant status of nursery pigs. Anim. Feed Sci. Tech. 216:251-261.

Harris, E.K., M.A. Mellencamp, L.J. Johnston, and G.C. Shurson. 2016. Growth performance of immunologically castrated pigs harvested at 5, 7, or 9 weeks after the second Improvest® dose and fed diets containing corn dried distillers grains with solubles. J. Anim. Sci. 95: 2: 806-819 doi:10.2527/jas.2016.0510.

Hilbrands, A.M., K.A. Rosentrater, G.C. Shurson, and L.J. Johnston. 2016. Influence of storage bin design and feed characteristics on flowability of pig diets containing maize distillers dried grains with solubles. Appl. Eng. Agric. 32:273-280.

Li, Y., H. Zhang, L.J. Johnston, and W. Martin. 2016. Do pigs form social structures: An application of social network analysis? J. Anim. Sci. 95(Suppl. 1):7. doi:10.2527/asasmw.2017.015.

Wu, F., L.J. Johnston, P.E. Urriola, A.M. Hilbrands, and G.C. Shurson. 2016. Effects of feeding diets containing distillers’ dried grains with solubles and wheat middlings with equal predicted dietary net energy on growth performance and carcass composition of growing-finishing pigs. J. Anim. Sci. 94:144-154.

Wu, F., L.J. Johnston, P.E. Urriola, A.M. Hilbrands, and G.C. Shurson. 2016. Evaluation of ME predictions and the impact of feeding maize distillers dried grains with solubles with variable oil content on growth performance, carcass composition, and pork fat quality of growing-finishing pigs. Anim. Feed Sci. Tech. 213:128-141.

Wu, F., L.J. Johnston, P.E. Urriola, A.M. Hilbrands, and G.C. Shurson. 2016. Evaluation of NE predictions and the impact of feeding maize distillers dried grains with solubles (DDGS) with variable NE content on growth performance and carcass characteristics of growing-finishing pigs. Anim. Feed Sci. Tech. 215:105-116.

Wu, F., L.J. Johnston, P.E. Urriola, and G.C. Shurson. 2016. Pork fat quality of pigs fed distillers dried grains with solubles with variable oil content and evaluation of iodine value prediction equations. J. Anim. Sci. 94:1041-1052.

Davis, J.M., P.E. Urriola, S.K. Baidoo, L.J. Johnston, and G.C. Shurson. 2015. Effects of adding supplemental tallow to diets containing distillers dried grains with solubles on fatty acid digestibility in growing pigs. J. Anim. Sci. 93:258-265.

Davis, J.M., P.E. Urriola, G.C. Shurson, S.K. Baidoo, and L.J. Johnston. 2015. Effects of adding supplemental tallow to diets containing 30% distillers dried grains with solubles on growth performance, carcass characteristics, and pork fat quality in growing-finishing pigs. J. Anim. Sci. 93:266-277.

Hanson, A.R., P.E. Urriola, L.J. Johnston, and G.C. Shurson. 2015. Impact of synthetic antioxidants on lipid peroxidation of distiller’s dried grains with solubles and distiller’s corn oil stored under high temperature and humidity conditions. J. Anim. Sci. 93:4070-4078.

Hanson, A.R., L. Wang, L.J. Johnston, S.K. Baidoo, J.L. Torrison, C. Chen, and G.C. Shurson. 2015. Effect of feeding peroxidized dried distillers grains with solubles to sows and progeny on growth performance and metabolic oxidative status of nursery pigs. J. Anim. Sci. 93:135-146.

Janni, K.A., L.D. Jacobson, B.P. Hetchler, J.P. Oliver, and L.J. Johnston. 2014. Semi-continuous air sampling versus 24-hour bag samples to evaluate biofilters on a swine nursery in warm weather. Trans. of ASABE 57(5): 1501-1515.

Li, X., S.K. Baidoo, Y.Z. Li, G.C. Shurson, and L.J. Johnston. 2014. Interactive effects of distillers dried grains with solubles and housing system on reproductive performance and longevity of sows over three reproductive cycles. J. Anim. Sci.doi:10.2527/jas2013-6643.

Liu, P., C. Chen, B.J. Kerr, T.E. Weber, L.J. Johnston, and G.C. Shurson. 2014. Influence of thermally oxidized vegetable oils and animal fats on growth performance, liver gene expression, and liver and serum cholesterol and triglycerides in young pigs. J. Anim. Sci. 92:2960-2970.

Liu, P., B.J. Kerr, C. Chen, T.E. Weber, L.J. Johnston, and G.C. Shurson. 2014. Influence of thermally oxidized vegetable oils and animal fats on energy and nutrient digestibility in young pigs. J. Anim. Sci. 92:2980-2986.

Liu, P., B.J. Kerr, C. Chen, T.E. Weber, L.J. Johnston, and G.C. Shurson. 2014. Methods to create thermally oxidized lipids and comparison of analytical procedures to characterize peroxidation. J. Anim. Sci. 92:2950-2959.

Liu, P., B.J. Kerr, T.E. Weber, C. Chen, L.J. Johnston, and C. Chen. 2014. Influence of thermally oxidized vegetable oils and animal fats on intestinal barrier function and immune variables in young pigs. J. Anim. Sci. 92:2971-2979.

Phillips, C.E., C. Farmer, J.E. Anderson, L.J. Johnston, G.C. Shurson, J. Deen, D.H. Keisler, A.M. Conner, and Y.Z. Li. 2014. Pre-weaning mortality in group-housed lactating sows: Hormonal differences between high risk and low risk sows. J. Anim. Sci. 92:2603-2611.

Song, R., C. Chen, L.J. Johnston, B.J. Kerr, T.E. Weber, and G.C. Shurson. 2014. Effects of feeding diets containing highly peroxidized dried distillers grains with solubles and increasing vitamin E levels to wean-finish pigs on growth performance, carcass characteristics, and pork fat composition. J. Anim. Sci. 92:198-210.

Johnston, L.J., M.C. Brumm, S.J. Moeller, S. Pohl, M.C. Shannon, and R.C. Thaler. 2013. Effects of reduced nocturnal temperature on pig performance and energy consumption in swine nursery rooms. J. Anim. Sci. 91:3429-3435.

Johnston, L.J., and Y.Z. Li. 2013. Performance and well-being of sows housed in pens retrofitted from gestation stalls. J. Anim. Sci. 91:5937-5945.

Li, Y.Z., C.E. Phillips, L.H. Wang, X.L. Xie, S.K. Baidoo, G.C. Shurson, and L.J. Johnston. 2013. Effects of distillers’ dried grains with solubles on behavior of sows kept in a group-housed system with electronic sow feeders or individual stalls. Can. J. Anim. Sci. 93:57-66.

Song, R., C. Chen, L. Wang, L.J. Johnston, B.J. Kerr, T.E. Weber, and G.C. Shurson. 2013. High sulfur content in corn dried distillers grains with solubles protects against oxidized lipids by increasing sulfur-containing antioxidants in nursery pigs. J. Anim. Sci. 91:2715-2728.

Urriola, P.E., L.J. Johnston, H.H. Stein, and G.C. Shurson. 2013. Prediction of the concentration of standardized ileal digestible amino acids in distillers dried grains with solubles. J. Anim. Sci. 91:4389-4396.

Hilbrands, A.M., L.J. Johnston, K.M. McClelland, R.B. Cox, S.K. Baidoo, L.W.O. Souza, and G.C. Shurson. 2012. Effects of abrupt introduction and removal of high and low digestibility corn distillers dried grains with solubles from the diet on growth performance and carcass characteristics of growing-finishing pigs. J. Anim. Sci. 91:248-258.

Li, Y.Z., J.E. Anderson, and L.J. Johnston. 2012. Animal-related factors associated with piglet mortality in a bedded, group-farrowing system. Can. J. Anim. Sci. 92:11-20.

Li, Y.Z., L.H. Wang, and L.J. Johnston. 2012. Effects of farrowing system on behavior and growth performance of growing-finishing pigs. J. Anim. Sci. 90:1008-1014.

Li, Y.Z., L.H. Wang, and L.J. Johnston. 2012. Sorting by parity to reduce aggression towards young sows in group-gestation housing systems. J. Anim. Sci. 90:4514-4522.

Phillips, C.E., Y.Z. Li, L.J. Johnston, A.E. Goplen, and G.C. Shurson. 2012. Technical Note: A technique for ear vein catheterization in group-housed sows. J. Anim. Sci. 90:501-504.

Whang, L., Y.Z. Li, and L.J. Johnston. 2012. Effects of reduced nocturnal temperature on performance and behavior of nursery pigs. J. Integrative Agric. 11:1509-1516.

Dahlen, R.B.A., S.K. Baidoo, G.C. Shurson, J.E. Anderson. C.R. Dahlen, and L.J. Johnston. 2011. Assessment of energy content of low-solubles corn distillers dried grains and effects on growth performance, carcass characteristics, and pork fat quality in growing-finishing pigs. J. Anim. Sci. 89:3140-3152.

Li, Y.Z., S.K. Baidoo, L.J. Johnston, and J.E. Anderson. 2011. Effects of tryptophan supplementation on aggression among group-housed gestating sows. J. Anim. Sci. 89:1899-1907.

Li, Y.Z., L.J. Johnston, and A.M. Hilbrands. 2010. Pre-weaning mortality of piglets in a bedded, group-farrowing system. J. Swine Health and Prod. 18(2):75-80.

Schieck, S.J., B.J. Kerr, S.K. Baidoo, G.C. Shurson, and L.J. Johnston. 2010. Use of crude glycerol, a biodiesel coproduct, in diets for lactating sows. J. Anim. Sci. 88:2648-2656.

Schieck, S.J., G.C. Shurson, B.J. Kerr, and L.J. Johnston. 2010. Evaluation of glycerol, a biodiesel coproduct, in grow-finish pig diets to support growth and pork quality. J. Anim. Sci. 88:3927-3935.

Song, M., S.K. Baidoo, G.C. Shurson, M.H. Whitney, L.J. Johnston, and D.D. Gallaher. 2010. Dietary effects of distillers dried grains with solubles on performance and milk composition of lactating sows. J. Anim. Sci. 88:3313-3319. 

Xu, G., S.K. Baidoo, L.J. Johnston, D. Bibus, J.E. Cannon, and G.C. Shurson. 2010. The effects of feeding diets containing corn distillers dried grains with solubles, and withdrawal period of distillers dried grains with solubles, on growth performance and pork quality in grower-finisher pigs. J. Anim. Sci. 88:1388-1397.

Xu, G., S.K. Baidoo, L.J. Johnston, D. Bibus, J.E. Cannon, and G.C. Shurson. 2010. Effects of feeding diets containing increasing content of corn distillers dried grains with solubles to grower-finisher pigs on growth performance, carcass composition, and pork fat quality. J. Anim. Sci. 88:1398-1410.

Johnston, L.J., J. Goihl, and G.C. Shurson. 2009. Selected additives did not improve flowability of DDGS in commercial systems. Appl. Eng. Agric. 25:75-82.

Li, Y.Z. and L.J. Johnston. 2009. Behavior and performance of pigs previously housed in large groups. J. Anim. Sci. 87:1472-1478.

Moncrief, J.F., L.J. Johnston, and M.J. Spiehs. 2009. The effect of swine manure source and method of application on runoff losses of nitrogen, phosphorus, and sediment. J. Environ. Monitoring Restoration 6:139-146.

Renteria-Flores, J.A., L.J. Johnston, G.C. Shurson, and D.D. Gallaher. 2008. Effect of soluble and insoluble fiber on energy digestibility, nitrogen retention, and fiber digestibility of diets fed to gestating sows. J. Anim. Sci. 86:2568-2575.

Renteria-Flores, J.A., L.J. Johnston, G.C. Shurson, R.L. Moser, and S.K. Webel. 2008. Effect of soluble and insoluble dietary fiber on embryo survival and sow performance. J. Anim. Sci. 86:2576-2584.

Spiehs, M.J., G.C. Shurson, and L.J. Johnston. 2008. Evaluation of two direct fed microbials on the ability of pigs to resist an infection from Salmonella enterica subtype Typhimurium. Swine Health and Prod. 16 (1):27-36.

Johnston, L.J., C. Bennett, E. Keetelaar, and R.J. Smits. 2007. Injectable progesterone does not reduce mid to late pregnancy failure of sows during seasonal infertility. Manipulating Pig Production XI, J.E. Paterson and J.A. Barker (Eds.), Australasian Pig Sci. Assoc. p. 52.

Johnston, L.J., C. Bennett, R.J. Smits, and K. Shaw. 2007. Identifying the relationship of gilt rearing characteristics to lifetime sow productivity. Manipulating Pig Production XI. Eds. J.E. Paterson and J.A. Barker, Australasian Pig Sci. Assoc. p. 39.

Morrison, R.S., L.J. Johnston, and A.M. Hilbrands. 2007. A note on the effects of two versus one feeder locations on the feeding behaviour and growth performance of pigs in a deep-litter, large group housing system. Appl. Anim. Behav. Sci. 107:157-161.

Morrison, R.S., L.J. Johnston, and A.M. Hilbrands. 2007. The behaviour, welfare, growth performance and meat quality of pigs housed in a deep-litter, large group system compared to a conventional confinement system. Appl. Anim. Behav. Sci. 103:12-24.

Brumm, M.C., L.J. Johnston, D.W. Rozeboom, and NCR-89 Committee on Swine Management. 2006. Effects of removal and remixing of heavyweight pigs on performance to slaughter weights. Prof. Anim. Scientist 22:189-193.

Holt, J.P., L.J. Johnston, S.K. Baidoo, and G.C. Shurson. 2006. Effects of a high-fiber diet and frequent feeding on behavior, reproductive performance, and nutrient digestibility in gestating sows. J. Anim. Sci. 84:946-955.

Whitney, M.H., G.C. Shurson, L.J. Johnston, D.M. Wulf, and B.C. Shanks. 2006. Growth performance and carcass characteristics of grower-finisher pigs fed high quality corn distillers grain with soluble originating from a modern Midwestern ethanol plant. J. Anim. Sci. 84:3356-3363.

Smits, R.J., K. Shaw, and L.J. Johnston. 2005. Gilt management practices – A commercial study. Xth Biennial Conf. of the Australasian Pig Science Assoc. pp. 188-192.

Gessel, P.D., N.C. Hansen, S.M. Goyal, L.J. Johnston, and J. Webb. 2004. Persistence of zoonotic-pathogens in surface soil treated with different rates of liquid pig manure. Appl. Soil Ecology 25:237-243.

Reese, D., L. Johnston, R. Thaler, S. Carter, G. Hollis, T. Hartsock, J. Froseth, and B. Straw. 2004. Farrowing Management. Pork Education Resource Center, National Pork Board, Ames, IA.

Johnston, L.J., C.J. Clanton, C. Ajariyakhajorn, and S.M. Goyal. 2003. Survival of pathogenic indicator organisms in stored swine manure containing ground piglet carcasses during cold temperatures. Appl. Eng. Ag. 19(4):491-497.

Johnston, L.J., J.E. Pettigrew, S.K. Baidoo, G.C. Shurson, and R.D. Walker. 2003. Efficacy of sucrose and milk chocolate product or dried porcine solubles to increase feed intake and improve performance of lactating sows. J. Anim. Sci. 81:2475-2481.

Johnston, L.J., A. Renteria, and M.R. Hannon. 2003. Improving validity of on farm research. J. Swine Health Prod. 11:240-246.

Brumm, M.C., M. Ellis, L.J. Johnston, D.W. Rozeboom, D.R. Zimmerman, and NCR-89 Committee on Swine Management. 2002. Effect of removal and remixing light weight pigs on performance to slaughter weights. J. Anim. Sci. 80:1166-1172.

Brumm, M.C., M. Ellis, L.J. Johnston, D.W. Rozeboom, D.R. Zimmerman, and NCR-89 Committee on Swine Management. 2001. Interaction of swine nursery and grow-finish space allocations on performance. J. Anim. Sci. 79:1967-1972.

Leibbrandt, V.D., L.J. Johnston, G.C. Shurson, J.D. Crenshaw, G.W. Libal, and R.D. Arthur. 2001. Effect of nipple drinker water flow rate and season on performance of lactating swine. J. Anim. Sci. 79:2770-2775.

Yang, H., G.R. Foxcroft, J.E. Pettigrew, L.J. Johnston, G.C. Shurson, A.N. Costa, and L.J. Zak. 2000. Impact of dietary lysine intake during lactation on follicular development and oocyte maturation after weaning in primiparous sows. J. Anim. Sci. 78:993-1000.

Yang, H., J.E. Pettigrew, L.J. Johnston, G.C. Shurson, and R.D. Walker. 2000. Lactational and subsequent reproductive responses of lactating sows to dietary lysine (protein) concentration. J. Anim. Sci. 78:348-357.

Yang H., J.E. Pettigrew, L.J. Johnston, G.C. Shurson, J.E. Wheaton, M.E. White, Y. Koketsu, A.F. Sower, and J.A. Rathmacher. 2000. Effects of dietary lysine intake during lactation on blood metabolites, hormones, and reproductive performance in primiparous sows. J. Anim. Sci. 78(4):1001-1009.

Johnston, L.J., M. Ellis, G.W. Libal, V.B. Mayrose, W.C. Weldon, and NCR-89 Committee on Swine Management. 1999. Effect of room temperature and dietary amino acid concentration on performance of lactating sows. J. Anim. Sci. 77:1638-1644.

Clanton, C.J., L.J. Johnston, and R.A. Robinson. 1998. Odor emission from mixtures of ground swine carcass material and liquid swine waste. Applied Engr. in Ag. 15:331-335.

Johnston, L.J., R.A. Robinson, C.J. Clanton, S.M. Goyal, C. Ajariyakhajorn, and D.M. Heilig. 1998. Homogenization for disposal of dead piglet carcasses. Applied Engr. in Ag. 14(2):183-186.

Ajariyakhajorn, C., S.M. Goyal, R.A. Robinson, L.J. Johnston, and C.J. Clanton. 1997. The survival of Salmonella anatum, pseudorabies virus and porcine reproductive and respiratory syndrome virus in swine slurry. Microbiologica 20: 365-369.

Johnston, L.J., J.E. Pettigrew, and G.C. Shurson. 1997. Sow nutrition and reproduction. Pig News and Information 18:61N-64N. (Also reprinted in Nutr. Abstracts and Reviews, Series B, 1997, 67:537-540.)

Yang, H., J.A. Kerber, J.E. Pettigrew, L.J. Johnston, and R.D. Walker. 1997. Evaluation of milk chocolate product as a substitute for whey in pig starter diets. J. Anim. Sci. 75:423.

Johnston, L.J., C. Ajariyakhajorn, S.M. Goyal, R.A. Robinson, CJ Clanton, S.D. Evans, and D.D. Warnes. 1996. Survival of bacteria and virus in ground piglet carcasses applied to cropland for disposal. Swine Health and Production 4:189.

Pettigrew, J.E., S.M. El-Kandelgy, L.J. Johnston, and G.C. Shurson. 1996. Riboflavin nutrition of sows. J. Anim. Sci. 74:2226.

Johnston, L.J. 1995. Use of low-test-weight corn in swine diets and the lysine/protein relationship in corn. Swine Production and Health 3:161.

Johnston, L. J., and K. L. Hammers. 2022. Energy smart pig farming. In: Energy-smart farming: Efficiency, renewable energy and sustainability. R. E. H. Sims, (ed.), Burleigh Dodds Science Publishing, Cambridge, UK. 28 Pg.

Urriola, P. E., L. J. Johnston, and G. C. Shurson. 2019. Dietary fiber for welfare and productivity of sows. In: Nutrition of Hyperprolific Sows. Ed. A. P. Yague, Novus International, Inc., St. Louis, MO. Pg. 147-161.  ISBN: 978-84-17884-05-5

Trottier, N.L., L.J. Johnston, and C.F.M. de Lange. 2015. Applied amino acid and energy feeding of sows. In: The Gestating and Lactating Sow. C. Farmer (Ed.). Wageningen Acad. Publ. pp. 117-145. (Translated into Chinese, 2016.)

Johnston, L.J., M.H. Whitney, S.K. Baidoo, and J.A. Jendza. 2013. Feeding growing and breeding swine. In: Sustainable Swine Nutrition, First Edition. L.I. Chiba (Ed.). John Wiley and Sons, Inc. Ames, IA. pp. 439-464.

Kerr, B.J., G.C. Shurson, L.J. Johnston, and W.A. Dozier III. 2011. Utilization of crude glycerin in nonruminants. In: Biodiesel-Quality, Emissions and By-Products. Gisela Montero and Margarita Stoytcheva (Eds.). ISBN: 978-953-307-784-0, InTech. pp. 365-380. Available at: http://www.intechopen.com/articles/show/title/utilization-of-crude-glycerin-in-nonruminants.

Trottier, N.L. and L.J. Johnston. 2001. Feeding gilts during development and sows during gestation and lactation. In: Swine Nutrition, 2nd Ed., A.J. Lewis and L.L. Southern (Eds.), CRC Press, LLC, Boca Raton, Florida. pp. 725-769.

Johnston, L. J. Minnesota Nutrition Conference, Mankato, MN, September 21, 2023.  Fetal Programming Effects on Pigs

Cortus, E., L. Johnston, J. Tallaksen, D. DeWitte, S. Schieck-Boelke, B. Hetchler, J. Ertl, R. Stowell, and A. Schmidt.  2020.  Environmental footprints for Midwest pig production systems.  Final report for NPB project. 

Johnston, L. J.  Reducing Fossil Fuel Use in Swine Production – One Step at a Time.  Leman China Swine Conference.  Chongqing, China.  October 16, 2020. (virtual)

Johnston, L. J. 2019. Swine research at the University of Minnesota’s WCROC. Swine Research Group, Rivalea, Corowa, Australia. November 26.

Johnston, L. J., K. T. Sharpe, M. H. Reese, E. S. Buchanan, J. E. Tallaksen, A. M. Hilbrands, K. A. Janni, B. Hetchler, and Y. Li. 2019. Quantifying use of electricity to heat piglet creep areas in farrowing rooms. Biennial Conference of Australasian Pig Science Association, Adelaide, Australia. November 19.

Johnston, L. J. 2019. U of M Research Update: Zinc in late gestation diets for sows improves piglet survival. Minnesota Nutrition Conference, Mankato, MN. September 19.

Johnston, L. J. 2019. Birthweight and interventions to improve survival of pigs. Leman Swine Conference, St. Paul, MN. September 16.

Johnston, L.J. 2017. New management guides for sow gestation management. Seminar presented as part of the SowBridge Series. March 1.

Johnston, L.J. 2017. Reducing fossil fuel use in swine production - One piece at a time. Midwest Farm Energy Conf., Morris, MN. June 14. (Updated version of Pork Congress presentation.)

Johnston, L.J. 2017. Reducing fossil fuel use in swine production - One piece at a time. MN Pork Congr. Jan. 18.

Johnston, L.J., and M. Reese. 2017. WCROC research on renewable energy. Presented at meetings principle managers of New Fashion Pork (Jackson, MN) and Schwartz Farms (Sleepy Eye, MN). May 31.

Li, Y.Z., S. Cui, H. Zhang, L. Johnston, and S. Baidoo. 2017. Determining the minimal floor space allowance for gestating sows kept in pens with electronic sow feeders. Final Report to Natl. Pork Board, Proj. #14-041.

Li, Y.Z., H. Zhang, L.J. Johnston, and W. Martin. 2017. Understanding tail biting in pigs through social network analysis. Conf. on Assessment of Animal Welfare at Farm and Group Levels, Wageningen, The Netherlands. Sep. 2017.

Jacobson, L., L. Johnston, B. Hetchler, C. Reese, and A. Hilbrands. 2016. Research room design using ambient winter cooling to implement pig heat stress studies. Precision Livestock Farming, Hot Climate: Heat-Stress; CIGR-AgEng. Conf., Aarhus Denmark, June 26-29. (Presented by L. Jacobson)

Johnston, L.J. 2016. Practical considerations for group housing gestating sows. Presented at Canada Eastern Nutrition Conf., Guelph, Ontario, Canada. May 12.

Johnston, L.J. and N. Trottier. 2016. Precision feeding of pregnant sows. Workshop conducted at Canada Eastern Nutrition Conf., Guelph, Ontario, Canada. May 12.

Johnston, L.J. 2016. Reducing fossil fuel use in swine and dairy production – One piece at a time. Invited Presentation, Univ. of PA Dept. of Large Animal Clinical Sci., New Bolton Center, PA. May 13.

Johnston, L.J. 2016. Reducing fossil fuel use in swine – One piece at a time. Invited Presentation, Swine Educators In-Service Training Conf., sponsored by the National Pork Board, St. Louis, MO. Sep. 28.

Johnston, L.J., L.D. Jacobson, B.P. Hetchler, C.D. Reese, and A.M. Hilbrands. 2016. Performance response of grow-finish pigs to simulated heat stress under commercial-like conditions. 16^th International Conf. on Production Animal Diseases in Farm Animals, Wageningen, Netherlands. June 21.

Li, Y.Z., S.Q. Cui, J. Anderson, A. Holten, A.M. Hilbrands, and L.J. Johnston. 2016. Docking the tail or not: Effect on tail damage, skin lesions and growth performance of growing-finishing pigs. Precision Livestock Farming, Animal Production, Health, and Welfare, CIGR-AgEng. Conf., Aarhus, Denmark. June 26-29. (Presented by Y. Li)

Johnston, L.J. 2015. Crude glycerol and cottonseed oil to control DDGS-induced soft pork fat. Report of research co-funded by MN Corn Growers Assoc. and AURI. Presented to the MN Corn Growers Assoc. Expanded Uses Committee, Shakopee, MN. March 11. (Also presented to MN Pork Board Research Committee, Mankato, MN. Aug. 25)

Johnston, L.J. 2015. Recent research in nutrition and management of top performing sows. Presented at 3^rd International Sow and Suckling Piglet Nutrition Seminar, Taicang, China. Sponsored by Anyou Group Ltd. Aug. 13.

Johnston, L.J. 2015. Tribute to Dr. E.R. Miller (Professor at Michigan State Univ.; Former President of ASAS). Presented at ASAS Foundation Heritage Luncheon during Joint Animal Science Meetings (JAM), Orlando, FL. July 14.

Johnston, L.J., M.C. Brumm, S. Moeller, S. Pohl, M. Shannon, and R. Thaler. 2015. Lowering energy consumption by reduction of temperature in swine facilities. Presented at Midwest Farm Energy Conf., Morris, MN. June 17.

Shurson, G.C., P.E. Urriola, L.J. Johnston, and F. Wu. 2015. Optimizing the use of reduced-oil maize DDGS in swine diets by managing variability in ME and digestible amino acid content and impacts on pork fat quality. Proc. AMENA Conf., Puerto Vallarta, Jalisco, Mexico.

Johnston, L.J. and Y. Li. 2014. Gestation in groups: A practical approach. Proc. XII Congreso Nacional de Produccion Procina, Mar del Plata, Argentina. Aug. 14.

Johnston, L.J. and Y. Z. Li. 2014. Raising pigs in traditional facilities vs. facilities with improved animal welfare. Proc. XII Congreso Nacional de Produccion Procina, Mar del Plata, Argentina. Aug. 14.

Shurson, J., L. Johnston, and Y. Li. 2014. Challenges and opportunities for optimal nutrition of the high producing sow. Proc. Asiapac International Seminar of Management and Technology Development for Feed Groups, Dongguan, China. June 29-30.

Janni, K.A., L.D. Jacobson, B.P. Hetchler, and L.J. Johnston. 2013. Comparing semi-continuous air sampling versus 24-hour bag samples to monitor gas emissions and treatment from a swine nursery with biofilters. ASABE Meeting, Kansas City, MO. Paper No. 131605534. July 22, 2013.

Johnston, L.J., X. Li, S.K. Baidoo, Y. Li, and G.C. Shurson. 2013. Long-term feeding of DDGS to sows. Presented at the 74th MN Nutrition Conf., Shakopee, MN. Sep. 17

Johnston, L.J. and Y. Li. 2013. Management and feeding of group-housed gestating sows. Presented at the Midwest Swine Nutr. Conf., Indianapolis, IN. Sep. 5.

Johnston, L.J., Y. Li, and A. Hilbrands. 2013. Performance and well-being of pregnant sows housed in pens retrofitted from stalls. Presented at Midwest ASAS Meeting, Des Moines, IA. March 12.

Johnston, L.J. and S.J. Schieck. 2013. Certification workshop for PQA+ advisors. Presented at the Allen D. Leman Swine Conf., St. Paul, MN. Sep. 14.

Li, X., G.C. Shurson, S.K. Baidoo, Y.Z. Li, and L.J. Johnston. 2013. Effects of gestation housing system on sow performance and longevity over three reproductive cycles. Presented at the 14th Biennial Conf. of the Australasian Pig Science Assoc., Melbourne, Victoria Australia. Nov. 27.

Janni, K.A., L.D. Jacobson, B.P. Hetchler, and L.J. Johnston. 2012. Comparing semi-continuous air sampling versus 24-hour bag samples from two flat-bed biofilters with new woodchip media. ASABE Meeting, Dallas, TX.

Johnston, L.J. 2012. Animal welfare in the U.S. swine industry: Some perspectives. Presented to faculty, staff, and students at Meiji University, Tokyo, Japan. Dec. 10, 2012.

Johnston, L.J. 2012. Gilt development and sow management for optimal performance and longevity. Presented to industry professionals and faculty and students at Meiji University, Tokyo, Japan. Dec. 13. (Also presented to staff and growers of Global Pig Farms, Inc., Takasaki, Japan.)

Johnston, L.J. 2012. Sow longevity and lifetime productivity: Some perspectives. Presented to Research and Development staff of Murphy-Brown East and Murphy-Brown West, Wallace, NC. Nov. 13, 2012.

Johnston, L.J. and X. Li. 2012. Nutritional influences on fat quality of pork products. Presented at the 2012 Midwest Meeting, Des Moines, IA. March 21, 2012. (Invited Paper)

Janni, K.A., L.D. Jacobson, B.P. Hetchler, and L.J. Johnston. 2011. Comparing semi-continuous air sampling to 24-hour bag samples. ASABE Meeting, St. Joseph, MI. Paper No. 1111163.

Johnston, L.J. and X. Li. 2011. Fat hardness in swine products, dietary challenges and opportunities. Proc., 32nd Western Nutrition Conf., University of Alberta, Edmonton, Canada. 191-200.

Johnston, L.J. and X. Li. 2011. Fat firmness, dietary challenges and opportunities. Proc., 72nd Minnesota Nutrition Conf., Owatonna, MN.

Johnston, L.J. and G.C. Shurson. 2011. New technologies and approaches to feedstuff evaluation. Swine Educator In-Service Conf., National Pork Board, Sioux Falls, SD. Sep. 29, 2011.

Shurson, J., L. Johnston, S. Baidoo, and M. Whitney. 2009. What we know about feeding DDGS (Dried Distillers Grains with Solubles) to swine. Proc., Allen D. Leman Conf. pp. 143-151.

Johnston, L.J., S. Schieck, J. Shurson, S. Baidoo, and B. Kerr. 2008. Feeding crude glycerol to lactating sows. Proc., 69th Minnesota Nutrition Conf. p. 30.

Johnston, L.J., S. Schieck, J. Shurson, S. Baidoo, and B. Kerr. 2008. Use of crude glycerol in grower-finisher and sow diets. Proc., Allen D. Leman Swine Conf. pp. 152-156.

Johnston, L.J., J. Shurson, and M. Whitney. 2008. Nutritional effects on fetal imprinting in swine. Proc., 69th Minnesota Nutrition Conf. pp. 207-222.

Johnston, L.J. and R.J. Smits. 2008. Efficiency of sow herd feeding: Getting the most out of your gilts. Kansas State Univ.-Univ. of Minnesota Nutrition Workshop, Allen D. Leman Swine Conf. pp. 28-39.

Renteria-Flores, J.A. and L.J. Johnston. 2008. Use of fiber in gestating sow diets. Proc., Colegio Latinoamericano de Nutricion Animal, III Congreso Clana., Cancun, Mexico. pp. 15-32.

Shurson, J., L. Johnston, S. Baidoo, and M. Whitney. 2008. Use of dried distillers grains with solubles (DDGS) in swine diets. Proc., Allen D. Leman Conf. pp. 144-151.

Johnston, L.J. 2007. Nutrition of the developing gilt for optimal lifetime productivity. 13th DISCOVER Conference on Food Animal Agriculture: Sow Productive Lifetime. Nashville, IN.

Hammers, K. L., P. E. Urriola, M. Schwartz, M. S. Ryu, A. Gomez, and L. J. Johnston.  2023.  Awardee Talk:  Timing of dietary zinc supplementation during gestation did not affect trace element concentrations in sows and their piglets.  J. Anim. Sci. 101 (Suppl. 2):72-73.  https://doi.org/10.1093/jas/skad341.081

Hammers, K. L., P. E. Urriola, M. Schwartz, M. S. Ryu, A. Gomez, and L. J. Johnston.  2023.  Effect of birth weight on tissue copper, iron, and zinc concentrations in piglets.  J. Anim. Sci. 101 (Suppl. 2):71-72.  https://doi.org/10.1093/jas/skad341.080

Law, K., L. J. Johnston, A. Gomez, P. E. Urriola, T. G. G. Kiros, and J. Loughmiller.  2023.  Maternal programming of the piglet microbiome through supplementation with a yeast feed additive.  J. Anim. Sci. 101 (Suppl. 2):166-167.  https://doi.org/10.1093/jas/skad341.184

Law, K., L. J. Johnston, P. E. Urriola, J. Loughmiller, T. G. G. Kiros, and A. Gomez.  2023.  Effects of a yeast feed additive for maternal programming of the postweaning pig microbiome.  J. Anim. Sci. 101 (Suppl. 2):167-168.  https://doi.org/10.1093/jas/skad341.185

Archer, C., A. Hilbrands, L. J. Johnston, B. E. Mote, T. B. Schmidt, and Y. Li.  2023.  Influence of group size on performance and tail damage caused by tail biting in undocked growing-finishing pigs.  J. Anim. Sci. 101 (Suppl. 2):4-5.  https://doi.org/10.1093/jas/skad341.004

Kieser, J., J. P. Palencia, L. J. Johnston, and C. L. Levesque.  2023.  Yeast-based postbiotic supplementation in sow diets to enhance offspring growth and health through the nursery period.  J. Anim. Sci. 101 (Suppl. 2): 69.  https://doi.org/10.1093/jas/skad341.077

Carpenter, C. B., P. E. Urriola, G. C. Shurson, M. Pieters, L. J. Johnston, W. P. Schweer, and L. A. Rodrigues.  2023.  Effects of dietary Zn supplementation strategy on immune response, bacterial clearance and disease severity in growing gilts infected with Mycoplasma hyopneumoniae.  Presented at 2023 Leman Swine Conference, St. Paul, MN

Hammers, K. L., K. Law, A. Gomez, P. E. Urriola, and L. J. Johnston. 2022. Effect of water delivery system on growth performance of nursery pigs. J. Anim. Sci. 100(Suppl. 2):48. https://doi.org/10.1093/jas/skac064.075

Hammers, K. L., P. E. Urriola, M. Schwartz, M. Ryu, A. Gomez, and L. J. Johnston. 2022. Timing of dietary zinc additions during gestation for improved piglet survival. J. Anim. Sci. 100(Suppl. 2):56-57. https://doi.org/10.1093/jas/skac064.090

Hammers, K. L., J. Jasper, S. Kern, L. J. Johnston, J. S. Knott, and M. J. Boerboom. 2022. Effect of a supplemental water source on growth performance of finishing pigs. J. Anim. Sci. 100(Suppl. 2):138-139. https://doi.org/10.1093/jas/skac064.237

Yang, Z., Y. Hung, J. C. Jang, P. E. Urriola, L. J. Johnston, and G. C. Shurson. 2022. A systems approach for evaluating productivity, nutritional efficiency, and environmental impacts of feeding programs for growing-finishing pigs. J. Anim. Sci. 100(Suppl. 2):40-41. https://doi.org/10.1093/jas/skac064.063

Yang, Z., Y. Hung, J. C. Jang, P. E. Urriola, L. J. Johnston, and G. C. Shurson. 2022. Life cycle assessment of environmental impacts of swine growing-finishing feeding programs using different amounts of soybean meals, distillers dried grains with solubles, and crystalline animo acids. J. Anim. Sci. 100(Suppl. 2):27-28. https://doi.org/10.1093/jas/skac064.044

Johnston, L. 2022. Where are your energy hogs? Leman Swine Conf. proc., St. Paul, MN.

St. Charles, K M., Y. Z. Li, and L. J. Johnston. 2021. Exploring preferential networks of grower-finisher pigs and potential connections to tail biting. Page 164 in Proc. 8th Int. Conf. Assessment of Animal Welfare at Farm and Group Level. Ed. L. Boyle and K. O’Driscoll. Aug. 16-19, 2021. Cork, Ireland (Virtual).

Hilbrands, A. M., Y. Z. Li, L. J. Johnston, R. B. Cox, W. F. Lazarus, W. Martin, F. Forcella, and R. Gesch. 2021. Camelina meal as an alternative ingredient in growing-finishing pig diets. Presented at Natl. ASAS meeting (July 2021).

Li, Y., Y. Zhu, M. Reese, E. Buchanan, and L. Johnston.  2020.  Effects of chilled drinking water and cooled floor pads on behavior of lactating sows under heat stress.  Presented at 2020 Midwest ASAS meeting, Omaha, NE.

Johnston, L. J., M. Reese, E. Buchanan, Y. Z. Li, A. M. Hilbrands, B. M. Lozinski, J. Tallaksen, K. A. Janni, B. Hetchler, and E. Cortus.  2019.  Effects of a solar-powered cooling system on performance of heat-stressed lactating sows.  Presented at 2020 Midwest ASAS meeting, Omaha, NE.

Lozinski, B. M., B. Frederick, Y. Li, M. Saqui-Salces, G. C. Shurson, P. E. Urriola, M. L. Wilson, and L. J. Johnston.  2019.  Effects of water quality on nursery pig performance and health.  Presented at 2020 Midwest ASAS meeting, Omaha, NE.

Holen, J. P., L. J. Johnston, P. E. Urriola, J. E. Garrett, and G. C. Shurson.  2019.  Comparative digestibility of polysaccharide-complexed zinc and zinc sulfate in diets for gestating and lactating sows.  Presented at 2020 Midwest ASAS meeting, Omaha, NE.

Holen, J. P., P. E. Urriola, M. Schwartz, J. C. Jang, G. C. Shurson, and L. J. Johnston.  2019.  Effects of supplementing late gestation sow diets with zinc on pre-weaning mortality of pigs under commercial rearing conditions.  Presented at 2020 Midwest ASAS meeting, Omaha, NE.

Law, K., B. Lozinski, I. Torres, A. Hilbrands, E. Nelson, L. Johnston, and A. Gomez.  2020.  Maternal programming of the piglet microbiome from birth to weaning.  Presented at Leman Conference virtually. 

Clarke, A. S., N. Horn, G. C. Shurson, C. D. Faulk, and L. J. Johnston.  2019. Beta-hydroxy-beta-methylbutyrate (HMB) supplementation to mouse dams in gestation does not affect birth weight variation or growth of offspring.  J. Anim. Sci. 97(Suppl. 3):110.  https://doi.org/10.1093/jas/skz258.226

Clarke, A. S., N. Horn, G. C. Shurson, C. Faulk, and L. J. Johnston.  2019.  Beta-hydroxy-beta-methylbutyrate (HMB) supplementation to mouse dams in gestation does not affect fetal weight variation of offspring or placental development.  American Society for Nutrition.  Nutrition Conference, June 8, Baltimore, MD.

Li, Y. Z., K. St Charles and L. J. Johnston.  2019.  Association between social preference and development of tail biting in growing-finishing pigs.  Proceedings of the 17^th International Conference on Production Diseases in Farm Animals. Pg. 84.  Bern, Switzerland. Jun 27 -29.  Available at:  https://boris.unibe.ch/131406/1/Proceedings%20ICPD%202019.pdf

St. Charles, K. M., Y. Li, and L. Johnston.  2019.  Use of social network analysis to assess association between positive social ties and prevalence of tail biting in growing pigs.  Poster presentation at National Pork Board Pig Welfare Symposium, Minneapolis, MN. 

Li, Y., Y. Zhu, M. Reese, E. Buchanan, and L. Johnston.  2019.  Effects of chilled drinking water and cooled floor pads on behavior of lactating sows under heat stress.  Accepted for presentation at 2020 Midwest ASAS meeting, Omaha, NE.

Johnston, L. J., M. Reese, E. Buchanan, Y. Z. Li, A. M. Hilbrands, B. M. Lozinski, J. Tallaksen, K. A. Janni, B. Hetchler, and E. Cortus.  2019.  Effects of a solar-powered cooling system on performance of heat-stressed lactating sows.  Accepted for presentation at 2020 Midwest ASAS meeting, Omaha, NE.

Lozinski, B. M., B. Frederick, Y. Li, M. Saqui-Salces, G. C. Shurson, P. E. Urriola, M. L. Wilson, and L. J. Johnston.  2019.  Effects of water quality on nursery pig performance and health.  Accepted for presentation at 2020 Midwest ASAS meeting, Omaha, NE. 

Holen, J. P., L. J. Johnston, P. E. Urriola, J. E. Garrett, and G. C. Shurson.  2019.  Comparative digestibility of polysaccharide-complexed zinc and zinc sulfate in diets for gestating and lactating sows.  Accepted for presentation at 2020 Midwest ASAS meeting, Omaha, NE.

Holen, J. P., P. E. Urriola, M. Schwartz, J. C. Jang, G. C. Shurson, and L. J. Johnston.  2019.  Effects of supplementing late gestation sow diets with zinc on pre-weaning mortality of pigs under commercial rearing conditions.  Accepted for presentation at 2020 Midwest ASAS meeting, Omaha, NE.

Li, Y., M. Lou, M. Reese, E. Buchanan, and L. Johnston.  2018.  Effects of cooled floor pads and cooled drinking water on behavior of lactating sows under heat stress.  J. Anim. Sci. 97(Suppl. 2):2-3.  https://doi.org/10.1093/jas/skz122.003

Holen, J. P., M. R. Renken, T. A. Kerkaert, M. J. Boerboom, L. J. Johnston, and J. S. Knott.  2018.  Effect of shelf setting of a wet/dry feeder on growth performance of finishing pigs.  J. Anim. Sci. 97(Suppl. 2):147.  https://doi.org/10.1093/jas/skz122.260

Li, Y. and L. J. Johnston.  2018.  Social structures, social ties, and development of tail biting in growing-finishing pigs.  J. Anim. Sci. 97(Suppl. 2):236.  https://doi.org/10.1093/jas/skz122.415

Yang, Z., P. E. Urriola, Z. K. Zeng, A. M. Hilbrands, L. J. Johnston, and G. C. Shurson.  2018.  Effects of feeding high protein distillers dried grains (HP-DDG) on growth performance and carcass characteristics of growing-finishing pigs.  J. Anim. Sci. 96(Suppl. 2):173.  https://doi.org/10.1093/jas/sky073.319 

Yang, Z., P. E. Urriola, A. M. Hilbrands, L. J. Johnston, and G. C. Shurson.  2018.  Effects of increasing dietary concentrations of high protein distillers grains (HP-DDG) on growth performance nursery pigs.  J. Anim. Sci. 96(Suppl. 2):137-138.  https://doi.org/10.1093/jas/sky073.254

Sharpe, K. T., M. H. Reese, E. S. Buchanan, J. E. Tallaksen, K. A. Janni, and L. J. Johnston.  2018.  Electrical and thermal energy consumption in Midwest commercial swine facilities.  J. Anim. Sci. 96(Suppl. 2):57-58.  https://doi.org/10.1093/jas/sky073.107

Johnston, L. J., D. W. Rozeboom, R. D. Goodband, S. J. Moeller, M. C. Shannon, and S. J. Schieck.  2018.  Effect of floor space allowances on growth performance of finishing pigs marketed at 138 kilograms.  J. Anim. Sci. 96(Suppl. 2):6-7.  https://doi.org/10.1093/jas/sky073.011

Li, Y., S. Cui, X. Yang, H. Zhang, L. Johnston, and S. Baidoo.  2018.  Evaluation of floor space allowance for group-housed gestating sows:  Application of allometric principles.  J. Anim. Sci. 96(Suppl. 2):57.  https://doi.org/10.1093/jas/sky073.106

Li, Y., S. Cui, X. Yang, S. Baidoo, and L. Johnston.  2018.  Evaluating body condition of group-housed gestating sows:  Sow caliper measurements vs. backfat thickness and visual scores.  J. Anim. Sci. 96(Suppl. 2):47.  https://doi.org/10.1093/jas/sky073.088

Zeng, Z. K., P. E. Urriola, J. R. Dunkelberger, J. M. Eggert, R. Vogelzang, G. C. Shurson, and L. J. Johnston.  2018.  Implications of piglet birth weight for survival rate, subsequent growth performance, and carcass characteristics of commercial pigs.  J. Anim. Sci. 96(Suppl. 2):59-60.  https://doi.org/10.1093/jas/sky073.111

Li, Y., H. Zhang, L. Johnston, and M. Dawkins.  2018.  Utilization of optical flow to monitor development of tail biting outbreaks in pigs.  12^th World Conference of Animal Production, July 7, 2018 Vancouver, BC. Canada. Poster Session III-2. Available at: https://www.eventscribe.com/2018/ASAS-Annual/posteragenda.asp 

Li, Y., S. Cui, S. Baidoo, and L. Johnston.  2018.  Effect of body condition measured using a sow caliper on performance of group-housed gestating sows.  ASAS Annual meeting, July 10, 2018 Vancouver, BC. Canada. Poster Session X – PSX-39. Available at: https://www.eventscribe.com/2018/ASAS-Annual/posteragenda.asp..

Sharpe, K. T., B. J. Heins, E. S. Buchanan, M. H. Reese, J. E. Tallaksen, and L. J. Johnston.  2018.  Thermal and electrical energy and water consumption in a Midwest dairy parlor.  J. Dairy Sci. 101(Suppl. 2):346. (Abstr. 328). 

Holen, J. P., Z. Rambo, A. M. Hilbrands, and L. J. Johnston.  2018.  Effects of dietary zinc source and concentration on performance of growing-finishing pigs reared with reduced floor space.  Poster presented at the MN Nutrition Conference, Mankato, MN.  September 19.

Li, Y., M. Lou, M. Reese, E. Buchanan, and L. Johnston.  2018.  Effects of cooled floor pads and cooled drinking water on behavior of lactating sows under heat stress.  Accepted for presentation at 2019 Midwest ASAS meeting.

Holen, J. P., M. R. Renken, T. A. Kerkaert, M. J. Boerboom, L. J. Johnston, and J. S. Knott.  2018.  Effect of shelf setting of a wet/dry feeder on growth performance of finishing pigs.  Accepted for presentation at 2019 Midwest ASAS meeting.

Li, Y. and L. J. Johnston.  2018.  Social structures, social ties, and development of tail biting in growing-finishing pigs.  Accepted for presentation at 2019 Midwest ASAS meeting.

Holen, J.P., Z.J. Rambo, A.M. Hilbrands, and L.J. Johnston. 2017. Effects of dietary zinc sources and concentration on performance of growing-finishing pigs reared with reduced floor space. J. Anim. Sci. 95(Suppl. 2):184 (Abstr. 380).

Li, Y., S. Cui, X. Yang, B.A. Crooker, S.K. Baidoo, and L.J. Johnston. 2017. Salivary cortisol concentrations of group-housed gestating sows: Individual vs. group samples. J. Anim. Sci. 95 (Suppl. 2): 8-9. (Abstr. 18).

Li, Y.Z., S. Cui, H. Zhang, L. Johnston, and S. Baidoo. 2017. Minimal floor space allowance for gestating sows housed in pens with electronic sow feeders. Proc., Pig Welfare Symp., Des Moines, IA. Nov. 7-9. p. 35 (Abstr.).

Li, Y.Z. and L.J. Johnston. 2017. Effect of tail docking on welfare and performance of pigs during nursery and growing-finishing periods. J. Anim. Sci. 95(Suppl. 2):34 (Abstr. 73).

Li, Y.Z., H. Zhang, L.J. Johnston, and W. Martin. 2017. Do pigs form social structures: An application of social network analysis? J. Anim. Sci. 95 (Suppl. 2): 7 (Abstr. 15).

Li, Y., H. Zhang, L. Johnston, and W. Martin. 2017. Understanding tail biting in pigs through social network analysis. Proc., 7th Internatl. Conf. Assess. of Animal Welfare Farm and Group Level. I.C. De Jong and P. Koene, Eds. Ede, The Netherlands, Sep. 5-8. p. 87 (Abstr.).

Mielke, J.A., P.E. Urriola, M. Saqui-Salces, L.J. Johnston, and G.C. Shurson. 2017. Growth performance of nursery pigs fed microalgae carbohydrate product. J. Anim. Sci. 95(Suppl. 2):103 (Abstr. 215).

Yang, Z., P.E. Urriola, Z.K. Zeng, A. Hilbrands, L.J. Johnston, and G.C. Shurson. 2017. Effects of feeding 30% high protein distillers grains (HP-DDG) on growth performance and carcass characteristics of growing-finishing pigs. 78th Minnesota Nutrition Conf., Mankato, MN. Sep. 20-21.

Li, Y.Z., J. Anderson, A. Holten, A.M. Hilbrands, J. Holen, and L.J. Johnston. 2016. Understanding tail biters and victimized pigs during outbreaks of tail biting. J. Anim. Sci. 94: (Suppl. 2): 8 (Abstr. 18). Oral Presentation at the Midwest ASAS Ann. Mtg., Des Moines, IA.

Hanson, A.R., P.E. Urriola, L.J. Johnston, and G.C. Shurson. 2015. Antioxidants reduce lipid peroxidation of dried distillers grains with solubles (DDGS) and distillers corn oil (DCO) stored under high temperature and humidity conditions. J. Anim. Sci. 93(Suppl. 2):126 (Abstr.).

Villela, C.C.E.J., R.B. Cox, G.C. Shurson, K.M. Compart, P.E. Urriola, and L.J. Johnston. 2015. Correlation of fatty acid composition and iodine value (IV) among 3 fat depots in pork carcasses. J. Anim. Sci. 93(Suppl. 2):117 (Abstr.).

Wu, F., L.J. Johnston, P.E. Urriola, A.M. Hilbrands, and G.C. Shurson. 2015. Impact of feeding diets containing corn distillers dried grains with solubles (DDGS) with variable predicted NE content on growth performance and carcass characteristics of growing-finishing pigs. J. Anim. Sci. 93(Suppl. 2):60 (Abstr.).

Wu, F., L.J. Johnston, P.E. Urriola, and G.C. Shurson. 2015. Evaluation of NE prediction equations for corn distillers dried grains with solubles (DDGS) for growing-finishing pigs. J. Anim. Sci. 93(Suppl. 2):164 (Abstr.).

Wu, F., L.J. Johnston, P.E. Urriola, and G.C. Shurson. 2015. Evaluation of the precision and accuracy of equations to predict backfat iodine value (IV) in pork carcasses of pigs fed diets containing distillers dried grains with solubles (DDGS). J. Anim. Sci. 93(Suppl. 2):48 (Abstr.).

Hanson, A.R., P.E. Urriola, L.J. Johnston, S. Baidoo, C. Chen, B.J. Kerr, and G.C. Shurson. 2014. Dietary peroxidized corn oil reduces growth performance of nursery pigs. J. Anim. Sci. 92(Suppl. 2):39 (Abstr.).

Hanson, A.R., P.E. Urriola, L.J. Johnston, S.K. Baidoo, C. Chen, B.J. Kerr, and G.C. Shurson. 2014. Evaluation of strategies for minimizing metabolic oxidative stress in nursery pigs fed diets containing high concentrations of DDGS. MN Corn Growers Ag Expo.

Harris, E.K., C. Calhoun, L.J. Johnston, R.B. Cox, and G.C. Shurson. 2014. Belly quality of immunologically castrated pigs fed dried distillers grains with solubles. Meat Sci. 101:45 (Abstr.).

Harris, E.K., C. Calhoun, L.J. Johnston, R.B. Cox, and G.C. Shurson. 2014. Comparison of iodine value equations among pork carcass fat depots of immunologically castrated pigs. Meat Sci. 101:113 (Abstr.).

Harris, E.K., C. Calhoun, L.J. Johnston, R.B. Cox, and G.C. Shurson. 2014. Effects of feeding dried distiller grains with solubles (DDGS) to immunologically castrated pigs harvested at 5, 7, or 9 weeks post-second dose of Improvest on lean quality. J. Anim. Sci. 92(Suppl. 2):136 (Abstr.).

Harris, E.K., C. Calhoun, M.A. Mellencamp, R. Cox, L.J. Johnston, and G.C. Shurson. 2014. Feeding dried distillers grains with solubles (DDGS) to immunologically castrated pigs. J. Anim. Sci. 92(Suppl. 2):76 (Abstr.).

Harris, E.K., M.A. Mellencamp, L.J. Johnston, and G.C. Shurson. 2014. Effect of dried distiller grains with solubles (DDGS) feeding strategies on growth and feed intake responses of immunologically castrated pigs harvested at 9, 7 or 5 weeks post-second Improvest dose. J. Anim. Sci. 92(Suppl. 2):40 (Abstr.).

Harris, E.K., M.A. Mellencamp, L.J. Johnston, and G.C. Shurson. 2014. Growth and cost analysis of immunologically castrated pigs fed distillers dried grains with solubles (DDGS). Proc. 45th Ann. Mtg. Amer. Assoc. Swine Vet. pp. 397-398.

Hilbrands, A.M., K. Rosentrater, G.C. Shurson, and L.J. Johnston. 2014. Influence of storage bin design on flowability of DDGS-based pig diets. J. Anim. Sci. 92(Suppl. 2):125 (Abstr.).

Villela, C.C.E.J., R. Cox, G.C. Shurson, K.M. Compart, P.E. Urriola, and L.J. Johnston. 2014. Effect of adding minimally refined cottonseed oil or crude glycerol to diets containing 40% distillers dried grains with solubles (DDGS) on carcass fat firmness of growing-finishing pigs. J. Anim. Sci. 92(Suppl. 2):151 (Abstr.).

Villela, C.C.E.J., R. Cox, G.C. Shurson, K.M. Compart, P.E. Urriola, and L.J. Johnston. 2014. Effect of feeding diets containing 40% distillers dried grains with solubles (DDGS) and supplemented with minimally refined cottonseed oil or crude glycerol on growth performance and carcass composition of growing-finishing pigs. J. Anim. Sci. 92(Suppl. 2):150 (Abstr.).

Wang, L., L. Johnston, and Y. Li. 2014. Effects of social rank on agonistic behaviors and associated injury scores of gestating sows at mixing. J. Anim. Sci. (Suppl. 2):115 (Abstr.).

Wang, L., L. Johnston, and Y. Li. 2014. What determines the social rank of a sow in a group-housing system? J. Anim. Sci. 92(Suppl. 2):116 (Abstr.).

Wu, F., L.J. Johnston, P.E. Urriola, A.M. Hilbrands, and G.C. Shurson. 2014. Impact of reduced-oil DDGS on growth performance of growing-finishing pigs. MN Corn Growers Ag Expo.

Wu, F., L.J. Johnston, P.E. Urriola, A.M. Hilbrands, and G.C. Shurson. 2014. Validation of ME prediction equations and the impact of feeding diets containing corn distillers dried grain with solubles (DDGS) with variable oil content on growth performance of growing-finishing pigs. J. Anim. Sci. 92(Suppl. 2):30 (Abstr.).

Hanson, A.R., L.J. Johnston, S.K. Baidoo, J.L. Torrison, C. Chen, and G.C. Shurson. 2013. Effects of dietary oxidized lipid on the growth performance and metabolic oxidative status of nursery pigs. J. Anim. Sci. 91(Suppl. 2):29 (Abstr.).

Hanson, A.R., P.E. Urriola, L.J. Johnston, S.K. Baidoo, C. Chen, B.J. Kerr, and G.C. Shurson. 2013. Effects of dietary peroxidized corn oil on growth performance and antioxidant status of nursery pigs. Proc. 11th World Conf. Anim. Prod., Beijing, China. pp. 58-59.

Harris, E.K., A.M. Hilbrands, L.J. Johnston, C. Calhoun, and G.C. Shurson. 2013. Effects of feeding dried distiller grains with solubles (DDGS) to immunologically castrated pigs on growth performance and carcass yield. Proc. 11th World Conf. Anim. Prod., Beijing, China. p. 59.

Harris, E.K., A.M. Hilbrands, L.J. Johnston, C. Calhoun, and G.C. Shurson. 2013. Effects of feeding dried distillers grains with solubles (DDGS) to immunologically castrated pigs. Proc. Allen D. Leman Swine Conf., University of Minnesota, St. Paul, MN. p. 238.

Harris, E.K., A.M. Hilbrands, L.J. Johnston, C. Calhoun, and G.C. Shurson. 2013. Effects of feeding DDGS to immunocastrated pigs. Proc. 74th MN Nutrition Conf. pp. 224-225.

Janni, K.A., L.D. Jacobson, B.P. Hetchler, J.P. Oliver, and L.J. Johnston. 2013. Comparing semi-continuous air sampling versus 24-hour bag samples to monitor gas emissions and treatment from a swine nursery with biofilters. ASABE Paper No. 1605534, ASABE, St. Joseph, MI.

Johnston, L.J., X. Li, S.K. Baidoo, Y. Li, and G.C. Shurson. 2013. Long-term feeding of DDGS to sows. Proc. 74th MN Nutrition Conf. pp. 215-216.

Johnston, L.J., Y. Li, and A. Hilbrands. 2013. Performance and well-being of pregnant sows housed in pens retrofitted from stalls. J. Anim. Sci. 91(Suppl. 2):18 (Abstr.).

Li, X., G.C. Shurson, S.K. Baidoo, D.D. Gallaher, J.E. Anderson, and L.J. Johnston. 2013. Effects of feeding low or high peroxidized distillers dried grains with solubles (DDGS) to sows and their progeny on growth performance and carcass characteristics of progeny. J. Anim. Sci. 91(Suppl. 2):115 (Abstr.).

Li, X., G.C. Shurson, S.K. Baidoo, D.D. Gallaher, J.E. Anderson, and L.J. Johnston. 2013. Effects of feeding low or high peroxidized distillers dried grains with solubles (DDGS) to sows on reproductive performance, incidence of low birth weight pigs, and within-litter variation of piglet birth weight. J. Anim. Sci. 91(Suppl. 2):119 (Abstr.).

Li, X., G.C. Shurson, S.K Baidoo, Y. Li, and L.J. Johnston. 2013. Effects of feeding distillers dried grains with solubles (DDGS) to sows on reproductive performance over 3 reproductive cycles. J. Anim. Sci. 91(Suppl. 2):120 (Abstr.).

Li, X., G.C. Shurson, S.K. Baidoo, Y.Z. Li, and L.J. Johnston. 2013. Effects of gestation housing system on sow performance and longevity over three reproductive cycles. Manipulating Pig Prod. XIV. Proc. Australasian Pig Sci. Assoc. p. 240. (Refereed one-page paper).

Li, X., G.C. Shurson, S.K. Baidoo, Y. Li, and L.J. Johnston. 2013. Interactive effects of distillers dried grains with solubles (DDGS) and housing system on litter performance, sow productivity, and sow longevity over 3 reproductive cycles. J. Anim. Sci. 91(Suppl. 2):89 (Abstr.). Won the National Pork Board's Swine Innovation Award for Research.

Swanson, J., Y. He, L.J. Johnston, and Y. Li. 2013. Can feeding stalls be used by low ranking sows as hiding spaces at mixing? J. Anim. Sci. 91(Suppl. 2):89 (Abstr.).

Hanson, A.R., L.J. Johnston, S.K. Baidoo, J.L. Torrison, and G.C. Shurson. 2012. High levels of dried distillers grains with solubles (DDGS) in sow and nursery diets do not contribute to Mulberry Heart Disease (MHD). J. Anim. Sci. 90(Suppl. 2):14 (Abstr.).

Johnston, L.J., M.C. Brumm, S. Moeller, S. Pohl, M. Shannon, and R. Thaler. 2012. Reducing energy consumption in swine nurseries with reduced nocturnal temperature (RNT). J. Anim. Sci. 90(Suppl. 2):20 (Abstr.).

Johnston, L.J. and X. Li. 2012. Nutritional influences on fat quality of pork products. J. Anim. Sci. 90(Suppl. 2):78 (Invited Abstr.).

Li, Y.Z., L.J. Johnston, S.K. Baidoo, C.E. Phillips, L.H. Wang, X.L. Xie, and G.C. Shurson. 2012. Effect of feeding DDGS diets on behaviors of gestating sows in different housing systems. J. Anim. Sci. 90(Suppl. 3):507 (Abstr.).

Li, X.J., G.C. Shurson, D.D. Gallaher, J.E. Anderson, S.K. Baidoo, and L.J. Johnston. 2012. Effects of feeding low or high oxidized dried distillers grains with solubles (DDGS) to sows on piglet birth weight variation and litter performance. J. Anim. Sci. 90(Suppl. 2):95. First Place in PhD Poster Competition.

Li, Y.Z., L.H. Wang, L.J. Johnston, A.M. Hilbrands, and X.L. Xie. 2012. Behavioral response of nursery pigs to reduced nocturnal temperature. J. Anim. Sci. 90(Suppl. 2):20 (Abstr.).

Li, Y.Z., L.H. Wang, L.J. Johnston, A.M. Hilbrands, and X.L. Xie. 2012. Sorting by parity improves welfare and performance of young sows in a group-housing gestation system. J. Anim. Sci. 90(Suppl. 2):19 (Abstr.).

Liu, P., B.J. Kerr, T.E. Weber, C. Chen, L.J. Johnston, and G.C. Shurson. 2012. Effect of lipid source and oxidation level on DE, ME, and apparent total-tract digestibility (ATTD) of DM, GE, EE, N, and C in young pigs. J. Anim. Sci. 90(Suppl. 2):105 (Abstr.).

Liu, P., B.J. Kerr, T.E. Weber, C. Chen, L.J. Johnston, and G.C. Shurson. 2012. Effect of lipid source and oxidation level on metabolic oxidation status of young pigs. J. Anim. Sci. 90(Suppl. 2):75 (Abstr.).

Liu, P., B.J. Kerr, T.E. Weber, C. Chen, L.J. Johnston, and G.C. Shurson. 2012. Influence of thermally oxidized oils and fats on growth performance and lipid profile of young pigs. J. Anim. Sci. 90(Suppl. 2):95 (Abstr.).

McClelland, K.M., A.M. Hilbrands, L.J. Johnston, G.C. Shurson, and R.B. Cox. 2012. Effects of frequent introduction and removal of dried distillers grains with solubles (DDGS) in growing-finishing swine diets on backfat fatty acid composition. J. Anim. Sci. 90(Suppl. 2):98 (Abstr.).

Song, R., C. Chen, L.J. Johnston, B.J. Kerr, T.E. Weber, and G.C. Shurson. 2012. Effects of feeding diets containing highly oxidized corn dried distillers grains with solubles (DDGS) with increasing vitamin E levels to wean-finish pigs on growth performance, carcass composition, and pork fat quality. J. Anim. Sci. 90(Suppl. 2):64 (Abstr.).

Song, R., C. Chen, L.J. Johnston, B.J. Kerr, T.E. Weber, and G.C. Shurson. 2012. High sulfur content in dried distillers grains with solubles (DDGS) protects against oxidized lipids in DDGS by increasing sulfur-containing antioxidants in nursery pigs. J. Anim. Sci. 90(Suppl. 2):11 (Abstr.).

Song, R., C. Chen, L.J. Johnston, B.J. Kerr, T.E. Weber, and G.C. Shurson. 2012. Impact of highly oxidized corn dried distillers grains with solubles (DDGS) at increasing dietary vitamin E levels on nutrient digestibility and DE and ME content in diets for growing pigs. J. Anim. Sci. 90(Suppl. 2):114 (Abstr.).

LaBerge, R.J., K.M. McClelland, A.M. Hilbrands, L.J. Johnston, G.C. Shurson, P.C. Nelson, T.J. McNamara, and R.B. Cox. 2011. Effect of intermittent feeding of diets containing 40% corn dried distillers grains with solubles (DDGS) to growing-finishing pigs on bacon yield and quality. J. Anim. Sci. 89(E-Suppl. 2):93 (Abstr.).

Li, Y.Z., J.E. Anderson, and L.J. Johnston. 2011. Animal-related factors affecting piglet mortality in loose farrowing systems. J. Anim. Sci. 89(E-Suppl. 2):50 (Abstr.).

Li, X.J., S.K. Baidoo, G.C. Shurson, and L.J. Johnston. 2011. Effects of corn dried distillers grains with solubles (DDGS) on diet digestibility and slurry output from gestating sows. J. Anim. Sci. 89(E-Suppl. 2):79 (Abstr.).

Hilbrands, A.M., L.J. Johnston, G.C. Shurson, S.K. Baidoo, and L.W.O. Souza. 2011. Effects of diet change and digestibility of corn distillers dried grains with solubles (DDGS) on growth performance and carcass characteristics of growing-finishing pigs. J. Anim. Sci. 89(E-Suppl. 2):116 (Abstr.).

Phillips, C.E., Y.Z. Li, J.E. Anderson, L.J. Johnston, G.C. Shurson, and J. Deen. 2011. Assessment of sow fear, parity and season on piglet mortality in loose farrowing systems. J. Anim. Sci. 89(E-Suppl. 2):49 (Abstr.).

Phillips, C.E., Y.Z. Li, J.E. Anderson, L.J. Johnston, G.C. Shurson, J. Deen, and C. Farmer. 2011. Association of sow fear with prolactin and cortisol concentrations pre- and post-farrowing. J. Anim. Sci. 89(E-Suppl. 1):12 (Abstr.).

Pomerenke, J.M., G.C. Shurson, S.K. Baidoo, and L.J. Johnston. 2011. Effects of dietary tallow and DDGS on pork fat quality. J. Anim. Sci. 89(E-Suppl. 2):76 (Abstr.).

Pomerenke, J.M., G.C. Shurson, S.K. Baidoo, and L.J. Johnston. 2011. Effects of tallow and DDGS on pig performance and carcass characteristics. J. Anim. Sci. 89(E-Suppl. 2):95 (Abstr.).

Li, Y.Z., J.E. Anderson, and L.J. Johnston. 2010. Effect of parity on pre-weaning mortality and growth performance of piglets in a bedded, group-farrowing system. J. Anim. Sci. 88(E-Suppl. 3):45 (Abstr.).

Li, Y.Z., S.K. Baidoo, L.J. Johnston, and J.E. Anderson. 2010. Effects of tryptophan supplementation on aggression among group-housed gestating sows. Proc., 71st Minnesota Nutrition Conf. p. 43.

Li, Y.Z., L.J. Johnston, and J.E. Anderson. 2010. Effect of lactation housing on growth performance of pigs. J. Anim. Sci. 88(E-Suppl. 3):49 (Abstr.).

Li, Y.Z., C.E. Phillips, S.K. Baidoo, and L.J. Johnston. 2010. Controlling aggression among gestating sows. J. Anim. Sci. 88(E-Suppl. 3):49 (Abstr.).

Pomerenke, J.M., G.C. Shurson, S.K. Baidoo, and L.J. Johnston. 2010. Tallow and DDGS effects on pig performance and carcass quality. Proc., 71st Minnesota Nutrition Conf. p. 51.

Amaral, R.B., L.J. Johnston, J.E. Anderson, S.K. Baidoo, and G.C. Shurson. 2009. Effects of low-solubles distiller′s dried grains (LS-DDG) in diets for growing-finishing pigs: Carcass characteristics and pork fat quality. J. Anim. Sci. 87 (E-Suppl. 3):73.

Amaral, R.B., L.J. Johnston, J.E. Anderson, S.K. Baidoo, and G.C. Shurson. 2009. Effects of low-solubles distiller′s dried grains (LS-DDG) in diets for growing-finishing pigs: Energy content and pig growth performance. J. Anim. Sci. 87 (E-Suppl. 3):80.

Drescher, A.J., S.K. Baidoo, L.J. Johnston, and G.C. Shurson. 2009. Effect of distillers' dried grains with solubles (DDGS) source on growth performance and carcass characteristics of growing-finishing pigs. J. Anim. Sci. 87 (E-Suppl. 3):80.

Hilbrands, A.M., L.J. Johnston, G.C. Shurson, and I. Kim. 2009. Influence of rapid introduction and removal of dietary corn distillers dried grains with solubles (DDGS) on pig performance and carcass characteristics. J. Anim. Sci. 87 (E-Suppl. 3):82.

Li, Y.Z., C.E. Phillips, S.K. Baidoo, and L.J. Johnston. 2009. Controlling aggression among gestating sows. Presented at the 2009 Leman Conf., St. Paul, MN.

Rozeboom, D.W., R.D. Goodband, K.J. Stalder, and NCERA-89 Committee on Swine Management. 2009. Effects of decreasing or increasing sow feed intake prior to farrowing on lactation performance. J. Anim. Sci. 87 (E-Suppl. 3):96.

Schieck, S.J., L.J. Johnston, B.J. Kerr, S.K. Baidoo, and G.C. Shurson. 2009. Use of crude glycerol, a biodiesel co-product, in diets for lactating sows. J. Anim. Sci. 87 (E-Suppl. 3):63.

Schieck, S.J., L.J. Johnston, G.C. Shurson, and B.J. Kerr. 2009. Evaluation of crude glycerol, a biodiesel co-product, in growing pig diets to support growth and improve pork quality. J. Anim. Sci. 87 (E-Suppl. 3):90.

Shurson, J., R. Song, P. Davies, and L. Johnston. 2009. Growth performance, carcass characteristics, physiological and gut health effects of feeding diets containing BMD to heat stressed finishing pigs. Presented at the MN Nutrition Conf., Sept. 15, Owatonna, MN.

Thaler, R.C., L.J. Johnston, M.C. Brumm, M.S. Carlson-Shannon, and NCERA-89 Committee on Swine Management. 2009. Effect of reduced nocturnal temperature for early-weaned pigs on performance and energy consumption. J. Anim. Sci. 87 (E-Suppl. 3):60.

Drescher, A.J., L.J. Johnston, G.C. Shurson, and J. Goihl. 2008. Use of 20% dried distillers grains with solubles (DDGS) and high amounts of synthetic amino acids to replace soybean meal in grower-finisher swine diets. J. Anim. Sci. 86(e-Suppl. 3):28 (Abstr. 88).

Johnston, L.J., A.M. Hilbrands, G.C. Shurson, and J. Goihl. 2008. Selected additives do not improve flowability of dried distillers grains with soluble (DDGS) in commercial systems. J. Anim. Sci. 86(e-Suppl. 3):54 (Abstr. 166).

Xu, G., S.K. Baidoo, L.J. Johnston, J.E. Cannon, D. Bibus, and G.C. Shurson. 2008. Effects of adding increasing levels of corn dried distillers grains with solubles (DDGS) to corn-soybean meal diets on pork fat quality of growing-finishing pigs. J. Anim. Sci. 86(e-Suppl. 3):51 (Abstr. 158).

Xu, G., S.K. Baidoo, L.J. Johnston, J.E. Cannon, D. Bibus, and G.C. Shurson. 2008. Effects of dietary corn dried distillers grains with soluble (DDGS) and DDGS withdrawal intervals on pig growth performance, carcass traits, and fat quality. J. Anim. Sci. 86(e-Suppl. 3):52 (Abstr. 161).

Li, Y.Z. and L.J. Johnston. 2007. Effects of familiarity and weight variation on aggression among grow-finish pigs following re-grouping. J. Anim. Sci. 85(Suppl. 2):49 (Abstr.).

Song, M., S.K. Baidoo, G.C. Shurson, and L.J. Johnston. 2007. Use of dried distillers grains with solubles in diets for lactating sows. J. Anim. Sci. 85(Suppl. 2):97 (Abstr.).

Song, M., S.K. Baidoo, M.H. Whitney, G.C. Shurson, and L.J. Johnston. 2007. Effects of dietary dried distillers grains with solubles on energy and nitrogen balance, and milk composition of lactating sows. J. Anim. Sci. 85(Suppl. 2):100 (Abstr.).

Urriola, P.E., D. Hoehler, C. Pedersen, H.H. Stein, L.J. Johnston, and G.C. Shurson. 2007. Determination of amino acid digestibility of corn, sorghum, and a corn-sorghum blend of dried distillers grains with solubles in growing pigs. J. Anim. Sci. 85(Suppl. 2):113 (Abstr.).

Urriola, P.E., D. Hoehler, C. Pedersen, H.H. Stein, L.J. Johnston, and G.C. Shurson. 2007. Prediction of in vivo amino acid digestibility in dried distillers grains with solubles (DDGS) from crude protein, optical density and fluorescence. J. Anim. Sci. 85(Suppl. 2):72 (Abstr.).

Urriola, P.E., D. Hoehler, C. Pedersen, H.H. Stein, L.J. Johnston, and G.C. Shurson. 2007. Prediction of in vivo amino acid digestibility of dried distillers grains with solubles (DDGS) from selected physical and chemical characteristics. J. Anim. Sci. 85(Suppl. 2):114 (Abstr.).

Xu, G., S.K. Baidoo, L.J. Johnston, J.E. Cannon, and G.C. Shurson. 2007. Effects of adding increasing levels of corn dried distillers grains with solubles (DDGS) to corn-soybean meal diets on growth performance and pork quality of growing-finishing pigs. J. Anim. Sci. 85(Suppl. 2):76 (Abstr.).

Goodband, R., M. Brumm, L. Johnston, and K. Stalder. 2006. Effect of mixing pigs or maintaining pen integrity on the response to grow-finish space allocation. J. Anim. Sci. 84 (Suppl. 1):292 (Abstr.).

Li, Y.Z. , C.E. Phillips, S.K. Baidoo, and L.J. Johnston. 2009. Controlling aggression among gestating sows. Presented at the 2009 Leman Conf., St. Paul, MN.

Li, Y.Z., L.J. Johnston, and A.M. Hilbrands. 2006. Factors related to piglet pre-weaning mortality in a bedded farrowing system. J. Anim. Sci. 84 (Suppl. 1):269 (Abstr.)

Holt, J., L. Johnston, S. Baidoo, and G. Shurson. 2005. Effects of a high fiber diet and frequent feeding on the behavior, reproductive performance, and nutrient balance of gestating sows. J. Anim. Sci. 83(Suppl. 2):54 (Abstr.).

Johnston, L.J., R.J. Smits, and W.C. Morley. 2005. Exogenous progesterone fails to increase circulating levels in pregnant sows. Manipulating Pig Production X. p. 161. (Refereed Abstr.).

Johnston, L.J., R.J. Smits, and W.C. Morley. 2005. Neither housing system nor age change circulating progesterone concentrations in pregnant sows. Manipulating Pig Production X. p. 162. (Refereed Abstr.).

Knott, J., G. Shurson, M. Hathaway, and L. Johnston. 2005. Effects of feeding diets containing spray dried corn condensed distillers solubles and associated fractions to early-weaned pigs on intestinal morphology, immune status, circulating IGF-I concentrations, and organ weights. J. Anim. Sci. 83(Suppl. 2):70 (Abstr.).

Knott, J., G. Shurson, M. Hathaway, and L. Johnston. 2005. Effects of feeding diets containing spray-dried corn condensed distiller’s solubles (CDS) and associated fractions on growth performance of early-weaned pigs. J. Anim. Sci. 83(Suppl. 2):71 (Abstr.).

Spiehs, M., G. Shurson, and L. Johnston. 2005. Evaluation of two direct fed microbials on the ability of pigs to resist an infection from Salmonella Typhimurium. J. Anim. Sci. 83(Suppl. 2):77 (Abstr.).

Spiehs, M., G. Shurson, L. Johnston, and K. Seifert. 2005. Evaluation of corn distillers dried grains with solubles and a polyclonal antibody on growth performance and the ability of pigs to resist an infection from Salmonella Typhimurium. J. Anim. Sci. 83(Suppl. 2):62 (Abstr.).

Johnston, L. J. 2021. Swine It! Podcast. Interviewed on international podcast that was released March 29. https://www.youtube.com/watch?v=O7jyABBr9s8

Hammers, K. L., L. J. Johnston, and P. E. Urriola. 2021. Wean-to-estrus interval: Is full feeding beneficial? Natl. Hog Farmer. Aug. 12, 2021. https://www.nationalhogfarmer.com/news/wean-estrus-interval-full-feeding-beneficial?

Levesque, C. L., L. Johnston, P. Miller, and K. Maddock-Carlin. Graduate training program: Communicating beyond science to scientists. National Hog Farmer. Nov. 18, 2021. https://www.nationalhogfarmer.com/news/graduate-training-program-communicating-beyondscience-scientist

Johnston, L. J., and E. Cortus. Time to think about controlling heating costs. National Hog Farmer. Dec. 2, 2021. https://www.nationalhogfarmer.com/news/time-think-about-controllingheating-costs

Brown, J., L. Johnston, Y. Li, T. Parsons, T. Safranski, and Y. Seddon. 2017. A guide for managing sows with free-access stalls. Natl. Pork Board, Des Moines, IA. Pub. No. 04932.

Johnston, L., J. Brown, Y. Li, T. Parsons, T. Safranski, and Y. Seddon. 2017. A guide for managing sows with feeding stalls. Natl. Pork Board, Des Moines, IA. Pub. No. 04933.

Li, Y., J. Brown, L. Johnston, T. Parsons, T. Safranski, and Y. Seddon. 2017. A guide for managing sows with floor feeding. Natl. Pork Board, Des Moines, IA. Pub. No. 04934.

Li, Y., H. Zhang, L. Johnston, L. Jacobson, and W. Martin. 2017. Tail-biting in growing-finishing pigs. Res. Rep. - Animal Welfare, Natl. Pork Board/Pork Checkoff.

Parsons, T., J. Brown, L. Johnston, Y. Li, T. Safranski, and Y. Seddon. 2017. A guide for managing sows with electronic sow feeding (ESF). Natl. Pork Board, Des Moines, IA. Pub. No. 04931.

Safranski, T., J. Brown, L. Johnston, Y. Li, T. Parsons, and Y. Seddon. 2017. A guide for managing sows with gestation stalls. Natl. Pork Board, Des Moines, IA. Pub. No. 04936.

Seddon, Y., J. Brown, L. Johnston, Y. Li, T. Parsons, and T. Safranski. 2017. A guide for managing sows with trickle feeding. Natl. Pork Board, Des Moines, IA. Pub. No. 04935.

Johnston, L.J. 2016. Simulating heat stress on finishing pigs. WCROC Newsletter, Jan. 6.

Johnston, L.J., R. Acevedo, K. Sharpe, E. Buchanan, and M. Reese. 2016. Solar panels power WCROC swine barn. WCROC Newsletter, Sep. 9.

Johnston, L.J. 2015. Heat stressed pigs during winter?! WCROC Newsletter, Jan.

Johnston, L.J. 2015. Renewable energy use in pork production. WCROC Newsletter. Aug. 3. (Also published in July 2015 Issue of Swine Extension Update Newsletter, UMN Extension Swine Website.)

Johnston, L.J. 2013. Efficiency of pork production has improved. WCROC Newsletter, March 20.

Johnston, L.J. 2013. Morris area 8th graders descend on WCROC. WCROC Newsletter, Oct. 2.

Johnston, L.J. 2013. National Pork Board unveils new version of PQA Plus. WCROC Newsletter, June 26.

Johnston, L.J., A. Hilbrands, and G. Shurson. 2012. Influence of storage bin design on flowability of pig feed. WCROC Newsletter, Dec. 4.

Johnston, L.J. 2012. The sow housing conundrum. WCROC Newsletter, May 23.

Johnston, L.J. 2012. Using immunocastration to improve efficiency of pork production. WCROC Newsletter, Aug. 29.

Johnston, L.J. 2012. WCROC participates in PRRS Area Control Program. WCROC Newsletter, Feb. 15.

Johnston, L.J. 2011. Organic pork production: Searching for methionine sources. WCROC Newsletter, April 13.

Johnston, L.J. and X. Li. 2011. Are you what your mother ate? WCROC Newsletter, July 18.

Johnston, L.J. and Y. Li. 2011. Reducing nocturnal temperature in swine nurseries saves heating fuel. WCROC Newsletter, Oct. 26.

Li, Y.Z. and L.J. Johnston. 2012. 11 tips for managing pregnant sows in group housing. UMN Extension Ag Newswire. Released July 2.

Johnston, L.J. 2010. Can we improve nutritive value of DDGS for swine? WCROC Newsletter, Sep. 28.

Johnston, L.J. 2010. Gestating swine nutrient recommendations and feeding management. PIG 07-01-11. Natl. Swine Nutrition Guide, U.S. Pork Center of Excellence, pp. 108-122.

Reese, D.E., J.M. DeRouchey, E. Van Heugten, L. Johnston, M.H. Whitney, and G. Dahlke. 2010. Example diets for swine. PIG 07-01-15. Natl. Swine Nutrition Guide, U.S. Pork Center of Excellence, pp. 150-158.

Shurson, J., M.H. Whitney, and L. Johnston. 2010. Diet and health interactions in swine. PIG 07-01-16. Natl. Swine Nutrition Guide, U.S. Pork Center of Excellence, pp. 159-172.

Whitney, M.H., J. Shurson, L. Johnston, B. Koehler, R. Hadad, and D. Koehler. 2010. Feeding for niche swine production. PIG 07-07-01. Natl. Swine Nutrition Guide, U.S. Pork Center of Excellence, pp. 262-277.

Shurson, J., M. Whitney, L. Johnston, B. Koehler, R. Hadad, and D. Koehler. 2002. Designing feeding programs for natural and organic pork production. Univ. of MN Ext. Service Bulletin 07736-BU.

Johnston, L. J., P. E. Urriola, and S. Schieck-Boelke. 2020. Tips for managing market hogs destined for local meat lockers. May 6, 2020. AgUpdate. 

Lozinski, B., M. Saqui-Salces, G. C. Shurson. P. E. Urriola, B. Frederick, M. Wilson, Y. Li, and L. J. Johnston. 2020. Does water quality impact nursery pig performance and health? National Hog Farmer Magazine.

Buchanan, E., K. Sharpe, L. Johnston, M. Reese, and J. Tallaksen. 2017. Study goes to pig barns to find actual energy use. Natl. Hog Farmer Magazine Annual Res. Rev. Dec. Issue. pp. 18-19.

Johnston, L.J. 2017.How much living space do modern market pigs require? Morris Sun Tribune Ag Supplement. March.

Johnston, L., A. Hilbrands, and J. Holen. 2017. Can dietary zinc help pigs cope? Morris Sun Tribune Ag Supplement. March.

Li, Y., S. Cui, H. Zhang, L. Johnston, and S. Baidoo. 2017. How much floor space do group-housed sows need? Natl. Hog Farmer Magazine Annual Res. Rev. Dec. Issue. pp. 5-6.

Johnston, L.J. 2016. Renewable energy use in pork production. Morris Sun Tribune and Grant County Herald, March.

Johnston, L.J. 2016. Simulating heat stress on finishing pigs. Morris Sun Tribune, Jan. 29.

Johnston, L. and S. Schieck. 2016. How much floor space do heavy market hogs require? MN Pork Board Newsletter (May/June) and Natl. Hog Farmer Magazine online (July 21).

Li, Y., L. Johnston, and W. Martin. 2016. Research reaffirms the necessity of tail docking for pigs. Natl. Hog Farmer Research Review. pp. 18-19.

Shurson, J., P. Urriola, L. Johnston, and F. Wu. 2016. Managing DDGS variability. Morris Sun Tribune and Grant County Herald, March. (Also reprinted in Natl. Hog Farmer Magazine.)

Johnston, L.J., C.C.E.J. Villela, R.B. Cox, G.C. Shurson, K.M. Compart, and P.E. Urriola. 2015. Neither cottonseed oil nor glycerol creates firmer pork fat. Morris Sun Tribune Ag Supplement, March.

Shurson, G.C., P.E. Urriola, L.J. Johnston, and F. Wu. 2015. Managing DDGS variability. Natl. Hog Farmer Magazine Research Review, Dec. p. 16.

Harris, E., L. Johnston, and J. Shurson. 2014. Immunological castration and ethanol co-products studied to improve pork production. Morris Sun Tribune Ag. Supplement, March.

Johnston, L.J. 2014. PEDV rolls on (unfortunately). Morris Sun Tribune column, April 26.

Johnston, L.J., Y. Li, A. Hilbrands, and W.F. Lazarus. 2013. Retrofitting gestation stalls to group housing – A field study on performance and economics. Morris Sun Tribune Ag. Supplement, March.

Li, X. J., G. Shurson, Y.Z. Li, S.K. Baidoo, and L.J. Johnston. 2012. Housing, dietary effects on sow performance studied. Annual Research Review, Natl. Hog Farmer, Dec.

Johnston, L.J., Y. Li, and W.F. Lazarus. 2012. Retrofitting gestation stalls to group housing. Natl. Hog Farmer, Aug. 15. pp. 14-19.

Johnston, L.J., M. Brumm, S. Moeller, S. Pohl, M. Shannon, and R. Thaler. 2012. Energy savings in swine buildings realized. Morris Sun Tribune Ag. Supplement, March.

Johnston, L.J. 2012. Interview: Reduced nocturnal temperature offsets high energy costs in pig nurseries. FeedINFO News Service. Published Feb. 16.

Johnston, L.J. 2011. Try RNT to reduce energy consumption. Pork Professor column in The Land Magazine, Nov.

Johnston, L.J., M. Brumm, S. Moeller, S. Pohl, M. Shannon, and R. Thaler. 2011. Reducing energy consumption in swine nurseries. Annual Research Review, Natl. Hog Farmer, Dec.

Li, Y.Z. and L.J. Johnston. 2011. Sorting by parity improves welfare and performance of young sows in a group-housed gestation system. Annual Research Review, Natl. Hog Farmer, Dec.

Hilbrands, A.M., L.J. Johnston, G.C. Shurson, S.K. Baidoo, and L.W.O. Souza. 2011. Switching DDGS in and out of pig diets does not affect growth performance or carcass quality. Pork Professor column in The Land Magazine, June.

Johnston, L.J. 2011. Pork Quality Assurance Plus Program certified 50,000 pork producers. Morris Sun Tribune Ag. Supplement, March.

Johnston, L.J. 2011. What is the carbon footprint of U.S. pork? Morris Sun Tribune Ag. Supplement, March.

Hilbrands, A.M., L.J. Johnston, G.C. Shurson, L.W.O. Souza, and S. Baidoo. 2010. Rapid inclusion of 40% DDGS reduces overall feed costs. Annual Research Review, Natl. Hog Farmer, Dec. 22.

Johnston, L.J. 2010. Estimating the carbon footprint of pork production in the U.S. Pork Professor column in The Land magazine, Oct. 29.

Johnston, L.J., B. Thaler, M. Brumm, and M. Shannon. 2010. Reducing energy consumption in swine nurseries. Morris Sun Tribune Ag. Supplement, March.

Li, Y.Z., J.E. Anderson, L.J. Johnston, and A.M. Hilbrands. 2010. Effect of parity on pre-weaning mortality and growth performance of piglets in a bedded, group-farrowing system. Morris Sun Tribune Ag. Supplement, March.

Johnston, L., J. Anderson, R. Amaral, J. Shurson, and S. Baidoo. 2009. Low-solubles DDG diets improve fat firmness. Annual Research Review, Natl. Hog Farmer, Dec. 15.

Johnston, L.J. 2007. Feeding them right. National Hog Farmer Blueprint Series "Focus of Fertility". Oct. 15. pp. 36-44.

Shurson, J., L. Johnston, and J. Goihl. 2007. Do selected flow agents improve DDGS flowability in commercial systems? Distillers Grains Quarterly, 3rd Quarter, pp. 22-25.

Johnston, L.J. 2002. Managing pigs under stressful conditions. Newsletter of U.S. Grains Council in Southeast Asia.

Johnston, L.J., S. Baidoo, and J. Shurson. 2000. Everything but the squeal. Morris Sun-Tribune Ag. Supplement. March.

Schieck-Boelke, S., K. Stalder, L. Johnston, and S. Hoyer.  2020.  Providing relevant educational programming through teleconference to place-bound audiences.  J. Extension (Submitted)

Zhu, Y., L. J. Johnston, M. Reese, E. Buchanan, J. Tallaksen, A. Hilbrands, and Y. Z. Li.  2020.  Effects of cooled floor pads combined with chilled drinking water on behavior and performance of lactating sows under heat stress.  J. Anim. Sci. (submitted).

Li, Y.Z., S. Q. Cui, S. K. Baidoo, and L. J. Johnston.  2020.  Does sow caliper measurement correspond to backfat depth, visual condition score, and performance of sows?  J. Swine Health Prod. (submitted).

Wang, L., B. Dong, L. Johnston, and J. Yin.  2020.  Dietary fat effects on reproductive performance of sows and growth performance of piglets.  J. Anim. Sci. Biotech.  (submitted)

Lochner, H. L., K. L. Martinson, A. W. Bianco, M. L. Hutchinson, M. L. Wilson, L. J. Johnston, and K. E. Dentzman.  2020.  Owner and veterinarian perceptions of equine euthanasia and mortality composting.  J. Equine Vet. Sci. (submitted)

Johnston, L.J. 2002. Successful farrowing management practices. Factsheet published by Monsanto Choice Genetics for distribution to clients.

Johnston, L.J. 2001. Farrowing management. Pig Progress. 17:25-27. (Pig Progress is an international magazine on pig production published in Holland.)

Johnston, L.J. 2001. Nutritional management of lactating sows according to environment and productivity. Handout distributed at Purdue University Farrowing Management Course.

Johnston, L.J. 2001. Piglet processing and management. Handout distributed at Purdue University Farrowing Management Course.

Johnston, L.J. 2000. Body condition scoring sows. University of Missouri Farrowing Workshop Training Materials. 5 pages.

Johnston, L.J. 2000. Creep feeding and pig fostering. University of Missouri Farrowing Workshop Training Materials. 4 pages.

Johnston, L.J. 2000. Environmental considerations for the sow and the pig. University of Missouri Farrowing Workshop Training Materials. 6 pages.