Education
- Ph.D., Michigan State University, 1988
- M.S., Texas Tech University, 1984
- B.S., Penn State University, 1982
Research
Interests
- Energy and
protein nutrition of sows
- Management of reproducing sows
- Nutrition/environment
interactions
- Nutrition of the newly weaned pigs
- Feedstuff evaluation
- Gilt development
Outreach Programs
- Operation Mainstreet
- Training employees for modern pork production
- Use of alternative pork production systems
- National Swine Nutrition Guide
- PQAPlus State Training Team
- Minnesota
Nutrition Conference
- Agricultural
awareness for non-farm citizens
- SowBridge
Awards
- Outstanding Graduate Faculty Award, 2008. Awarded by the Animal Science Graduate Club.
- 2008 Innovation Award in the Science category sponsored by the National Pork Board. 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. Midwest Section Abstr. No. 161.
- 2007 Honorary Chapter FFA Degree awarded by the Morris Area FFA Chapter.
- 2004 Innovation
Award in the Outreach category sponsored by the National Pork
Board. Pohl, S., R. Thaler, M. Brumm, R. Stowell, J. Harmon,
D. Stender, J. Weiss, L. Johnston, and L. Jacobson. 2004.
Use of a mobile ventilation laboratory (VL) for hands-on training
of pork producers in building ventilation. J. Anim. Sci. 82(Suppl. 2):46 (Abstr.).
- Outstanding
Graduate Faculty Award, 2003. Awarded by Animal Science Graduate
Club.
- Honorable
Mention Paper Award from American Society of Agricultural
Engineers, awarded in 2004. Johnston, L.J., C.J. Clanton,
C. Ajariyakhajorn, and S.M. Goyal. 2003. Survival of pathogenic
indicator organisms in started swine manure containing ground
piglet carcasses during cold temperatures. Appl. Eng. Ag.
19(4): 491-497.
- 2002 Innovation
Award in the Outreach category sponsored by the National Pork
Board. Johnston, L.J., and J.A. Sterle. 2002. Use of a hands-on
workshop to teach swine reproductive management to farrowing
barn workers. J. Anim. Sci. 80(Suppl. 2):48(Abstr.).
Affiliations
Publications (2004-2008)
- Refereed Articles -
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. Eds. J.E. Paterson and J.A. Barker, 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.
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.
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.
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 Association. 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.
- Invited Papers, Conference Proceedings, Research Reports -
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. 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.
Johnston, L.J. 2006. Nutritional impacts on sow behavior. Proc. Pork Academy, National Pork Board, Des Moines, IA.
Johnston, L.J. and J.P. Holt. 2006. Improving pig welfare – The role of dietary fiber. Proc. Minnesota Nutr. Conf. pp. 171-182.
Li, Y.Z., L. Johnston, and A.M. Hilbrands. 2006. Factors related to pre-weaning mortality of piglets in a bedded, group farrowing system. Poster at the 1st International Conf. on Anim. In Organic Production. Internatl. Fed. of Organic Agric. Movements. Bonn, Germany (conference held on U of MN St. Paul campus).
Holt, J. and L. Johnston. 2005. Diet changes don’t slow stereotypic behavior in gestating sows. National Hog Farmer 2005 Swine Research Review. Dec. 15. pp. 27-28.
Johnston, L. and J. Holt. 2005. Fighting the hunger pangs – High fibre feeding for pregnant sows. Proc. Australian Assoc. of Pig Veterinarians Gold Coast Conf. pp. 41-46.
Johnston, L., R. Morrison, and M. Rudstrom. 2005. Welfare, meat quality, and performance of pigs housed in large-group, deep-litter systems. Proc. 7th International Symp. on Livestock Environment. Amer. Soc. Agric. Eng. pp. 663-668.
Morrison, R.S. and L.J. Johnston. 2005. Deep-litter, group housing systems for gestating sows. Proc. Australian Assoc. of Pig Veterinarians Gold Coast Conf. pp. 33-40.
- Abstracts -
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.
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 abstract)
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 abstract)
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.).
- Popular Press -
Johnston, L.J. 2007. Feeding them right. National Hog Farmer Blueprint Series "Focus of Fertility". Oct. 15, 2007, 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.
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