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

Koenig, K.M., Beauchemin, K.A. (2013). Nitrogen metabolism and route of excretion in beef feedlot cattle fed barley-based finishing diets varying in protein concentration and rumen degradability. Journal of Animal Science, [online] 91(5), 2310-2320. http://dx.doi.org/10.2527/jas.2012-5653
2013 - View publication details
Koenig, K.M., Beauchemin, K.A. (2013). Nitrogen metabolism and route of excretion in beef feedlot cattle fed barley-based backgrounding diets varying in protein concentration and rumen degradability. Journal of Animal Science, [online] 91(5), 2295-2309. http://dx.doi.org/10.2527/jas.2012-5652
2013 - View publication details
Koenig, K.M., McGinn, S.M., Beauchemin, K.A. (2013). Ammonia emissions and performance of backgrounding and finishing beef feedlot cattle fed barley-based diets varying in dietary crude protein concentration and rumen degradability. Journal of Animal Science, [online] 91(5), 2278-2294. http://dx.doi.org/10.2527/jas.2012-5651
2013 - View publication details
Koenig, K.M., Beauchemin, K.A., and McGinn, S.M. (2011). "Feeding tannins to reduce nitrogen losses from feedlot cattle fed high protein diets containing distillers grains 2. Nutrient digestibility and route of nitrogen excretion.", Journal of Dairy Science (JDS), 94(E-Suppl. 1), pp. 111. (Abstract)
2011 - View publication details
Koenig, K.M., Beauchemin, K.A., and McGinn, S.M. (2011). "Feeding tannins to reduce nitrogen losses from feedlot cattle fed high protein diets containing distillers grains 2. Nutrient digestibility and route of nitrogen excretion.", ADSA-PSA-AMPA-CSAS-ASAS 2011 Joint Annual Meeting, New Orleans, LA, USA, July 11-14, 2011. (Poster)
2011 - View publication details
Koenig, K.M., Beauchemin, K.A., and McGinn, S.M. (2011). "Feeding tannins to reduce nitrogen losses from feedlot cattle fed high protein diets containing distillers grains 1. Animal performance and plasma urea nitrogen.", ADSA-PSA-AMPA-CSAS-ASAS 2011 Joint Annual Meeting, New Orleans, LA, USA, July 11-14, 2011. (Poster)
2011 - View publication details
Koenig, K.M., Beauchemin, K.A., and McGinn, S.M. (2011). "Feeding tannins to reduce nitrogen losses from feedlot cattle fed high protein diets containing distillers grains 1. Animal performance and plasma urea nitrogen.", Journal of Dairy Science (JDS), 94(E-Suppl. 1), pp. 111. (Abstract)
2011 - View publication details
Koenig, K.M., Beauchemin, K.A. (2011). Optimum extent of barley grain processing and barley silage proportion in feedlot cattle diets: Growth, feed efficiency, and fecal characteristics, 91(3), 411-422. http://dx.doi.org/10.4141/cjas2010-039
2011 - View publication details
Mohammed, R., Zhou, M., Koenig, K.M., Beauchemin, K.A., and Guan, L.L. (2011). "Evaluation of rumen methanogen diversity in cattle fed diets containing dry corn distillers grains and condensed tannins using PCR-DGGE and qRT-PCR analyses.", Animal Feed Science and Technology, 166-167, pp. 122-131. doi : 10.1016/j.anifeedsci.2011.04.061
2011 - View publication details
Koenig, K.M. (2009). "Increasing efficiency of nitrogen utilization in cattle.", Western Nutrition Conference, Winnipeg, MB, Canada, September 23-24, 2009, pp. 66-77.
2009 - View publication details
Koenig, K.M., McGinn, S.M., and Beauchemin, K.A. (2009). "Ammonia emissions from beef feedlot cattle fed corn-based backgrounding and finishing diets varying in protein concentration and source (Abstract 107).", Journal of Dairy Science (JDS), 92(E-Suppl. 1), pp. 146. (Abstract)
2009 - View publication details
Koenig, K.M., McGinn, S.M., and Beauchemin, K.A. (2009). "Ammonia emissions from beef feedlot cattle fed corn-based backgrounding and finishing diets varying in protein concentration and source (Abstract 107).", Journal of Animal Science, 87(E-Suppl. 2). (Abstract)
2009 - View publication details
Ametaj, B.N., Koenig, K.M., Dunn, S.M., Yang, W.Z., Zebeli, Q., Beauchemin, K.A. (2009). Backgrounding and finishing diets are associated with inflammatory responses in feedlot steers, 87(4), 1314-1320. http://dx.doi.org/10.2527/jas.2008-1196
2009 - View publication details
Koenig, K.M., Beauchemin, K.A. (2009). Supplementing selenium yeast to diets with adequate concentrations of selenium: Selenium status, thyroid hormone concentrations and passive transfer of immunoglobulins in dairy cows and calves. Canadian Journal of Animal Science, [online] 89(1), 111-122. http://dx.doi.org/10.4141/CJAS08090
2009 - View publication details
Koenig, K.M. and Beauchemin, K.A. (2008). "Effect of selenium yeast on selenium status, thyroid hormone concentrations and passive transfer of immunoglobulins in dairy cows and calves.", ADSA-ASAS 2008 Joint Annual Meeting, Indiana Convention Center and RCA Dome, Indianapolis, IN, USA, July 7-11, 2008. (Abstract)
2008 - View publication details
Koenig, K.M. and Beauchemin, K.A. (2008). Resistance of ruminal protected lysine to ruminal degradation and the delivery of lysine to the blood of cattle. Final Summary Data Report for Sage Biosciences, Inc., Edmonton, AB, November 2008. (Report)
2008 - View publication details
Koenig, K.M. and Beauchemin, K.A. (2008). "Effect of selenium yeast on selenium status, thyroid hormone concentration and passive transfer of immunogloblins in dairy cows and calves.", Journal of Animal Science, 86(E-Suppl. 2), pp. TH243. (Abstract)
2008 - View publication details
Koenig, K.M. and Beauchemin, K.A. (2008). Beef feedlot performance and ruminal pH and fermentation data. Interim Data Report for Feed-Rite, Division of Ridley Inc.,Winnipeg, MB, August 21, 2008, pp. 36. (Report)
2008 - View publication details
Baah, J., Ivan, M., Hristov, A.N., Koenig, K.M., Rode, L.M., McAllister, T.A. (2007). Effects of potential dietary antiprotozoal supplements on rumen fermentation and digestibility in heifers. Animal Feed Science and Technology, [online] 137(1-2), 126-137. http://dx.doi.org/10.1016/j.anifeedsci.2006.11.004
2007 - View publication details
Koenig, K.M., Ivan, M., Teferedegne, B.T., Morgavi, D.P., Rode, L.M., Ibrahim, I.M., Newbold, C.J. (2007). Effect of dietary Enterolobium cyclocarpum on microbial protein flow and nutrient digestibility in sheep maintained fauna-free, with total mixed fauna or with Entodinium caudatum monofauna. British Journal of Nutrition, [online] 98(3), 504-516. http://dx.doi.org/10.1017/S0007114507723930
2007 - View publication details