Contact Us


Animal & Veterinary Science

Agricultural Sciences Bldg.
Phone: (208) 885-6345

Mailing Address:
Animal & Veterinary Science
University of Idaho
875 Perimeter Drive MS 2330
Moscow, ID 83844-2330

Mary Drewnoski

Mary E. Drewnoski

Office: Ag Science 212
Phone: 208-885-6348
Email: medrewno@uidaho.edu
Mailing Address: Animal and Veterinary Science
875 Perimeter Dr. MS 2330
Moscow , ID 83844-2330

College of Agricultural and Life Sciences
Animal and Veterinary Science
Beef Nutritionist

With UI Since 2012

  • Research/Focus Areas
    • Ruminant Nutrition in Beef Cattle
  • Selected Publications
    Drewnoski M. E., Richter EL and Hansen SL (2012) Dietary sulfur concentration affects rumen hydrogen sulfide concentration in feedlot steers during transition and finishing. J. Anim. Sci. 90:4478-4486

    Drewnoski, M. E., E. L. Richter, and S. L. Hansen. 2011. Dietary roughage level, days on finishing diet, and dietary sulfur content affect rumen hydrogen sulfide concentrations of steers. Journal of Animal Sci. Submitted.

    Drewnoski, M. E., S.M. Ensley, D.C. Beitz, D.D. Loy, P.M. Imerman, J.A. Rathje, and S.L. Hansen. 2011. Assessment of ruminal hydrogen sulfide or urine thiosulfate as diagnostic tools for sulfur induced polioencephalomalacia in cattle. Journal of Veterinary Diagnostic Investigation. Submitted.

    Richter, E. L., M. E. Drewnoski, and S. L. Hansen. 2011. Effects of increased dietary sulfur on beef steer mineral status, performance, and meat fatty acid composition J. Animal. Sci. Accepted.

    Pogge, D.J., E. L. Richter, M. E. Drewnoski and S. L. Hansen. 2011. Mineral concentrations of plasma and liver following injection with a trace mineral complex differ among Angus and Simmental cattle. J. Animal. Sci. Accepted.

    Garmyn, A.J., G. G. Hilton, R. G. Mateescu, J. B. Morgan, J. M. Reecy, R. G. Tait, Jr. , D. C. Beitz, Q. Duan, J. P. Schoonmaker, M. S. Mayes, M. E. Drewnoski, Q. Liu, and D. L. VanOverbeke. 2011. Estimation of relationships between mineral concentration and fatty acid composition of longissimus muscle and beef palatability traits. J. Anim. Sci. 89:2849-2858.

    Drewnoski, M.E. and M.H. Poore. 2011. Effects of supplementation frequency on ruminal fermentation and digestion by steers fed medium quality hay and supplemented with a soybean hulls and corn gluten feed blend. J. Anim. Sci. doi:10.2527/jas.2010-3807.

    Drewnoski, M.E., G.A. Benson, and M.H. Poore. 2011. Effect of Frequency of Supplementation of a Soyhulls and Corn Gluten Feed Blend on Hay Intake and Performance of Growing Steers. Anim. Feed. Sci. Tech. 163:38-44.

    Poore, M. H. and M. E. Drewnoski. 2010. REVIEW: Utilization of Stockpiled Tall Fescue in Winter Grazing Systems for Beef Cattle. The Professional Animal Scientist. 26:142–149.

    Drewnoski, M.E., E. J. Oliphant, M. H. Poore, J. T. Green, and M. E. Hockett. 2009. Growth and reproductive performance of beef heifers grazing endophyte free, endophyte infected and novel endophyte infected tall fescue. Livestock Sci . 125:254-260.

    Drewnoski, M.E., E. J. Oliphant, B.T. Marshall, M. H. Poore, J. T. Green, and M. E. Hockett. 2009. Performance of growing cattle grazing stockpiled Jesup tall fescue with varying endophyte status. J. Anim. Sci. 87: 1034-1041.