Prof. Nathalie Trottier

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Michigan State University
College of Agriculture & Natural Resources
Animal Science
Associate Professor

Mailing Address

Department of Animal Science
2209 Anthony Hall
Michigan State University
East Lansing, Michigan 48824
United States

Contact Information

Phone: (517) 432-5140
Fax: (517) 432-0190
trottier@msu.edu

Qualifications

Ph.D., Animal Nutrition, 1995.
M.Sc., Animal Nutrition, 1990.
B.S., McGill University, Agronomy, 1987.

Expertise and Research Interests

Research and teaching focus on nutrition of monogastric animals. More specifically, my interests are mainly in the area of amino acid metabolism during growth and lactation, amino acid utilization by the gut and the mammary gland.

Other Expertise

We have new begun addressing criteria to determine protein requirement of the horse and lactating mare.

Future Research

We are now interested in understanding the regulation of amino acid uptake by the mammary gland in relation to day of lactation in the porcine species. We are also investigating mechanisms involved in amino acid utilization by gut tissue.

Industrial Relevance

Understanding regulation of nutrient uptake by the mammary gland during lactation in the porcine species will contribute to developing new technologies to enhance milk production at an earlier phase of lactation. This would be highly significant for production units employing early weaning as part of their management tools.

Keywords

COS Keywords:

Animal Nutrition, Animal Science, Lactation.

Additional Terms:

Digestion, Horse, Lactation, Nutrition, Pig.

Languages

(Reading, Writing, Speaking)

English: (Fluent, Fluent, Fluent)
French: (Fluent, Fluent, Fluent)
Spanish: (Fluent, Functional, Functional)
Portuguese: (Functional, Basic, Basic)

Memberships

American Society for Nutritional Sciences
American Society of Animal Science
Canadian Society of Animal Science
Comparative Animal Nutrition Society

Honors and Awards

1993-1993, Illinois Pork Council Scholarship, Illinois Pork Council, University of Illinois
1992-1992, College of Agriculture Hunter Fellowship, University of Illinois, University of Illinois, Animal Science
1991-1991, Annual Graduate College Fellowship Allocation Review, University of Illinois, University of Illinois
1990-1990, Dean's Honor List, McGill University, McGill University, Animal Science
1990-1993, Certified Agronomist, Quebec Ministry of Agriculture, Agronomy
1989-1989, Fellowship for Researcher Formation and Help to Research, Quebec Ministry of Eduction, McGill University, Animal Science
1986-1987, Hubbard Farm Scholarship, Hubbard Farm, McGill University, Poultry Science

Funding Received

  • USDA: Amino acid utilization by the gut, $25,000, 2004 to 2004.
  • National Pork Board: Amino acid utilization by the gut, $50,000, 2003 to 2005.
  • Michigan State University Animal Industry Coalition: Interactive effect of fiber and reduced protein diet on nitrogen excretion in the growing pig, $20,000, 2001 to 2002.
  • Michigan State University Animal Industry Coalition: Development of gene discovery cDNA libraries and microarray sets for swine and cattle. Collaborator, $71,400, 2001 to 2002.
  • Rhone Poulenc: Amino acid nutrition of the pig: A review, $25,000, 2001 to 2001.
  • National Pork Producer Council: Interactive effect of fiber and reduced protein diet on nitrogen excretion in the growing pig, $25,000, 2000 to 2002.
  • Michigan Soybean Council: Soybean Meal as the Main Source of Protein for Lactating Sows, $24,000, 1998 to 2000.
  • Nutri-Quest, Inc: Effect of Heat Stress and Dietary Arginine on Lactation Performance in Sows, $24,000, 1998 to 2000.
  • Corn Marketing Board of Michigan: Application and Benefits of Feeding High Oil Corn to Swine, $31,128, 1998 to 2000.
  • Corn Marketing Program of Michigan: High Oil Corn: Crop Production and Swine Feeding Demonstration, $81,708, 1998 to 2000.
  • National Pork Producer Council: Endogenous Amino Acid Contribution to Odorous Metabolites in Swine Waste, $25,000, 1997 to 1999.
  • Scottish Agriculture Office: Mammary Amino Acid Utilization and Lactational Performance in Sows, $32,000, 1996 to 1999.
  • Corn Marketing Program of Michigan: Protein and Starch Digestibility of Different Corn Hybrids Fed to Swine, $56,674, 1996 to 1998.
  • Prince Agri Products Inc: Effect of Chromium Picolinate on Reproductive Performance of Sows, $4,000, 1996 to 1996.
  • Minnesota Soybean Research & Promotion Council: Competitive Advantage for Soybean Meal in Diets for Lactating Sow. Principle Investigators, $48,722, 1995 to 1997.

Publications

  • Snow, J. L., H. H. Stein, P. K. Ku, and N. L. Trottier, Amino acid digestibility and nitrogen utilization of high oil, high lysine, and waxy corn fed to growing pigs, Animal Feed Science and Technology, 113, 113-126, 2004
  • Guan, X, B. J. Bequette, P. Ku, R. T. Tempelman, and N. L. Trottier, Amino acid need for milk synthesis defined by maximal uptake of plasma amino acid by the porcine mammary glands, The Journal of Nutrition, 134, 2182-2190, 2004
  • Guan, X., J. E. Pettigrew, P. K. Ku, N. K. Ames, B. J. Bequette, and N. L. Trottier, Dietary protein concentration affects plasma arterio-venous difference of amino acids across the porcine mammary gland, Journal of Animal Science, 82, 2953-2963, 2004
  • Pérez Laspiur, J., J. L. Burton, P. S. D. Weber, R. N. Kirkwood, and N. L. Trottier, Amino acid transporters in porcine mammary gland during lactation, Journal of Dairy Science, 87, In press, 2004
  • Otto, E. R., M. Yokoyama, P. K. Ku, N. K. Ames, and N. L. Trottier, Nitrogen balance and ileal amino acid digestibility in growing pigs fed diets reduced in protein concentration, Journal of Animal Science, 81, 1743-1753, 2003
  • Otto, E. R., M. Yokoyama, S. Hengemuehle, R. D. von Bermuth, T. van Kempen, and N. L. Trottier, Ammonia, volatile fatty acids, phenolics, and odor offensiveness in manure from growing pigs fed diets reduced in protein concentration, Journal of Animal Science, 81, 1754-1763, 2003
  • Trottier, N. L., B. D. Nielsen, K. J. Lang, P. K. Ku, and H. C. Schott, Endurance exercise alters serum branched-chain amino acid and alanine concentration, Equine Veterinary Journal, 68(Suppl), 168-172, 2002
  • Guan, X., B. J. Bequette, G. Calder, P. K. Ku, K. N. Ames, and N. L. Trottier, Amino acid availability affects amino acid transport and protein metabolism in the porcine mammary gland, Journal of Nutrition, 132, 1224-1234, 2002
  • Guan, X., B. J. Bequette, G. Calder, P. K. Ku, K. N. Ames, and N. L. Trottier, The effect of litter size and day of lactation on amino acid uptake by the porcine mammary gland, Journal of Animal Science, 80, 2402-2411, 2002
  • Pérez Laspiur, J., and N. L. Trottier, Effect of dietary arginine supplementation and environmental temperature on sow lactation performance, Livestock Production Science, 70, 159-165, 2001
  • Kempen, T. van, van Heugten, E., and N. Trottier, Adipic acid increases plasma lysine but does not improve the efficiency of lysine utilization in swine, Journal of Animal Science, 79, 2406-2411, 2001
  • Riche, M., N.L. Trottier, P.K. Ku, D.L. Garling, Apparent digestibility of crude protein and apparent availability of individual amino acids in tilapia (Oreochromis niloticus) fed phytase pretreated soybean meal diets, Fish Physiology and Biochemistry, 25(3), 181-194, 2001
  • Guan X, Matte JJ, Ku PK, Snow JL, Burton JL, Trottier NL, High chromium yeast supplementation improves glucose tolerance in pigs by decreasing hepatic extraction of insulin, Journal of Nutrition, 130(5), 1274-9, May 2000 Abstract
  • Trottier, N. L. and X. Guan, Research paradigms behind amino acid requirements of the lactating sow: Theory and future application, Journal of Animal Science, 78(Supplement 3), 48-58, 2000
  • Stein HH, Trottier NL, Bellaver C, Easter RA, The effect of feeding level and physiological status on total flow and amino acid composition of endogenous protein at the distal ileum in swine, Journal of Animal Science, 77(5), 1180-7, May 1999 Abstract
  • Trottier NL, Nutritional control of amino acid supply to the mammary gland during lactation in the pig, Proceedings of the Nutrition Society, 56(2), 581-91, July 1997 Abstract
  • Trottier NL, Shipley CF, Easter RA, Plasma amino acid uptake by the mammary gland of the lactating sow, Journal of Animal Science, 75(5), 1266-78, May 1997 Abstract
  • Trottier NL, Shipley CF, Easter RA, A technique for the venous cannulation of the mammary gland in the lactating sow, Journal of Animal Science, 73(5), 1390-5, May 1995 Abstract
  • Trottier NL, Easter RA, Dietary and plasma branched-chain amino acids in relation to tryptophan: effect on voluntary feed intake and lactation metabolism in the primiparous sow, Journal of Animal Science, 73(4), 1086-92, April 1995 Abstract
  • Trottier, N. L., C. F. Shipley, and R. A. Easter, Arteriovenous differences for amino acids, urea nitrogen, ammonia and glucose across the mammary gland of the lactating sow, Journal of Animal Science (Supplement 2), 73, 57-58, 1995

Profile Details

Last Updated: 6/22/2005

COS Expertise ID #347676
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