Karen M. Koenig, Ph.D.

Research Scientist

Ruminant Nutrition

Agriculture and Agri-Food Canada

Lethbridge, Alberta

Current research and/or projects

Phytobiotics as alternatives to antimicrobials in beef cattle production

Strategies for sustainable cropping of annual crops in the Lower Fraser Valley and other intensive agricultural regions

Improving nutrient balances on dairy farms using model farmlets and simulation

Mitigating enteric methane emissions to improve environmental performance of forage-fed ruminants

Research and/or project statements

Nitrogen-use efficiency and mitigation of ammonia emissions from beef cattle

Natural plant extracts to optimize rumen function and nutrient utilization

Whole farm nutrient management and environmental sustainability

Trace mineral nutrition and metabolism

Education and awards

Ph.D. Ruminant Nutrition, University of Saskatchewan, 1994

M.Sc. Ruminant Nutrition, University of British Columbia, 1988

B.Sc. (Honours). Animal Science, University of British Columbia, 1984

Key publications

Ivan, M., Koenig, K.M., Morgavi, D.P., Rode, L.M., Newbold, C.J., and Entz, T. (2006). "Duodenal flow and digestibility in fauna-free sheep and in sheep monofaunated with the Entodinium caudatum or Polyplastron multivesiculatum species of rumen ciliate protozoa.", British Journal of Nutrition, 95, pp. 469-476.
2006 - View publication details
Koenig, K.M. and Beauchemin, K.A. (2005). "Barley- versus protein-supplemented corn-based diets for feedlot cattle evaluated using the NRC and CNCPS beef models.", Canadian Journal of Animal Science, 85(3), pp. 377-388.
2005 - View publication details
Beauchemin, K.A. and Koenig, K.M. (2005). "Feedlot cattle diets based on barley or corn grain supplemented with dry corn gluten feed evaluated using the NRC and CNCPS beef models.", Canadian Journal of Animal Science, 85(3), pp. 365-375.
2005 - View publication details
Koenig, K.M., Beauchemin, K.A., and Rode, L.M. (2004). "Effect of protein source on microbial protein synthesis and nutrient digestion in beef cattle fed barley grain-based diets.", Canadian Journal of Animal Science, 84(3), pp. 481-490.
2004 - View publication details
Ivan, M., Koenig, K.M., Teferedegne, B.T., Newbold, C.J., Entz, M.H., Rode, L.M., and Ibrahim, M. (2004). "Effects of the dietary Enterolobium cyclocarpum foliage on the population dynamics of rumen ciliate protozoa in sheep.", Small Ruminant Research, 52(1-2), pp. 81-91.
2004 - View publication details
Koenig, K.M., Beauchemin, K.A., and Rode, L.M. (2003). "Effect of grain processing and silage on microbial protein synthesis and nutrient digestibility in beef cattle fed barley-based diets.", Journal of Animal Science, 81(4), pp. 1057-1067.
2003 - View publication details
Koenig, K.M., Rode, L.M., Knight, K.P., and Vázquez-Añón, M. (2002). "Rumen degradation and availability of various amounts of liquid methionine hydroxy analog in lactating dairy cows.", Journal of Dairy Science (JDS), 85(4), pp. 930-938.
2002 - View publication details
McGinn, S.M., Koenig, K.M., and Coates, T. (2002). "Effect of diet on odorant emissions from cattle manure.", Canadian Journal of Animal Science, 82(3), pp. 435-444.
2002 - View publication details
Koenig, K.M. and Rode, L.M. (2001). "Ruminal degradability, intestinal disappearance, and plasma methionine response of rumen-protected methionine in dairy cows.", Journal of Dairy Science (JDS), 84(6), pp. 1480-1487.
2001 - View publication details
Ivan, M., Mir, P.S., Koenig, K.M., Rode, L.M., Neill, K.E., and Entz, M.H. (2001). "Effects of dietary sunflower seed oil on rumen protozoa population and tissue concentration of conjugated linoleic acid in sheep.", Small Ruminant Research, 41(3), pp. 215-227.
2001 - View publication details
Koenig, K.M., Newbold, C.J., McIntosh, T.C., and Rode, L.M. (2000). "Effects of protozoa on bacterial nitrogen recycling in the rumen.", Journal of Animal Science, 78(9), pp. 2431-2445.
2000 - View publication details