Karen M. Koenig, Ph.D.

Image Karen Koenig
Research Scientist

Ruminant Nutrition

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

Aboagye, I. A., Oba, M., Koenig, K. M., Zhao, G. Y., and Beauchemin, K. A. 2019. Use of gallic acid and hydrolyzable tannins to reduce methane emission and nitrogen excretion in beef cattle fed a diet containing alfalfa silage. J. Anim. Sci. 97:2230-2244. doi: 10.1093/jas/skz101

Cordeiro, M. R. C., Rotz, A., Kroebel, R., Beauchemin, K. A., Hunt, D., Bittman, S., Koenig, K. M., and Mckenzie, D. B. 2019. Prospects of forage production forage production in northern regions under climate and land-use changes: A case study of a dairy farm in Newfoundland, Canada. Agronomy 9:31. doi:10.3390/agronomy9010031

Aboagye, I. A., M. Oba, A. R. Castillo, K. M. Koenig, A. D. Iwassa, and K. A. Beauchemin. 2018. Effects of hydrolysable tannin with or without condensed tannin on methane emissions, nitrogen use, and performance of beef cattle fed a high-forage diet. J. Anim. Sci. 96:5276–5286. doi:10.1093/jas/sky352

Koenig, K. M., Beauchemin, K. A., and McGinn, S. M. 2018 Feeding condensed tannins to mitigate ammonia emissions from beef feedlot cattle fed high protein finishing diets containing distillers grains. J. Anim. Sci. 96:4414-4430. doi:10.1093/jas/sky274

Koenig, K. M., and Beauchemin. K. A. 2018. Effect of feeding condensed tannins in high protein finishing diets containing corn distillers grains on ruminal fermentation, nutrient digestibility, and route of nitrogen excretion in beef cattle. J. Anim. Sci.96:4398-4413. doi:10.1093/jas/sky273

Thomas, B. W., Gao, X., Stoeckli, J. L., Beck, R., Liu, K., Koenig, K. M., Beres, B. L., and Hao, X. 2017. Nitrapyrin reduced nitrous oxide emissions from beef cattle urine patches on a semiarid tame pasture. Soil Sci. Soc. Am. J. 81:1537-1547. doi:10.2136/sssaj2017.04.0123

Lee, C., Campos, F. S., Araujo, R. C., Koenig, K. M., and Beauchemin, K. A. 2017 In situ and in vitro evaluations of a slow release form of nitrate for ruminants: rumen nitrate metabolism and production of methane, hydrogen, and nitrous oxide. Anim. Feed Sci. Technol. 231:97–106. doi.org/10.1016/j.anifeedsci.2017.07.005

Lee, C., Araujo, R. C., Koenig, K. M., and Beauchemin, K. A. 2017. Effects of encapsulated nitrate on growth performance, carcass characteristics, nitrate residues in tissues, and enteric methane emissions in beef steers: Finishing phase. J. Anim. Sci. 95:3712–3726. doi:10.2527/jas2017.1461

Lee, C., Araujo, R. C., Koenig, K. M., and Beauchemin, K. A. 2017. Effects of encapsulated nitrate on growth performance, nitrate toxicity, and enteric methane emissions in beef steers: Backgrounding phase. J. Anim. Sci. 95:3700–3711  doi:10.2527/jas2017.1460

Jancewicz, L. J., Penner, G. B., Swift, M. L., Waldner, C. L., Koenig, K. M., Beauchemin, K. A., and McAllister, T. A. 2017. Predicting fecal nutrient concentrations and digestibilities and growth performance in feedlot cattle by near-infrared spectroscopy. J. Anim. Sci. 95:455–474 doi:10.2527/jas2016.0876

Jancewicz, L. J., Swift, M. L., Penner, G. B., Beauchemin, K. A., Koenig, K. M., Chibisa, G. E., He, M. L., McKinnon, J. J., Yang, W.Z., and McAllister, T. A. 2017. Development of NIRS calibrations to estimate fecal composition and nutrient digestibility in beef cattle. Can. J. Anim. Sci. 97:51–64. doi:10.1139/CJAS-2016-0107

Lee, C., Araujo, R. C., Koenig, K. M., Hile, M. L., Fabian-Wheeler, E. E., and Beauchemin, K. A. 2016. Effects of feeding encapsulated nitrate to beef cattle on ammonia and greenhouse gas emissions from their manure in a short-term manure storage system. J. Environ. Qual. 45:1979–1987. doi:10.2134/jeq2016.02.0056

Lee, C., Araujo, R. C., Koenig, K. M., and Beauchemin, K. A. 2015. Effects of feed consumption rate of beef cattle offered a diet supplemented with nitrate ad libitum or restrictively on potential toxicity of nitrate. J. Anim. Sci.93:4956-4966. doi:10.2527/jas2015-9435

Vyas, D., Beauchemin, K. A., and Koenig, K. M. 2015. Using organic acids to control ruminal acidosis and fermentation in feedlot cattle fed a high grain diet. J. Anim. Sci. 93:3950–3958. doi:10.2527/jas2015-9009

Lee, C., Araujo, R. C., Koenig, K. M., and Beauchemin, K. A. 2015. Effects of encapsulated nitrate on eating behavior, rumen fermentation, and blood profile of beef heifers fed restrictively or ad libitum. J. Anim. Sci. 93:2405–2418. doi:10.2527/jas2014-8851

Lee, C., Araujo, R. C., Koenig, K. M., and Beauchemin, K. A.  2015 Effects of encapsulated nitrate on enteric methane production, and nitrogen and energy utilization in beef heifers J. Anim. Sci. 93:2391–2404. doi:10..2527/jas2014-8845

Koenig, K. M. and 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. J. Anim. Sci. 91:2310–2320. doi: 10.2527/jas.2012-5653

Koenig, K. M. and 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. J. Anim. Sci. 91:2295–2309. doi: 10.2527/jas.2012-5652

Koenig, K. M., McGinn, S. M., and 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. J. Anim. Sci. 91:2278–2294. doi: 10.2527/jas.2012-5651

Affiliations

Senior Editorial Board, Animal Feed Science and Technology

Member Canadian Society of Animal Science, American Society of Animal Science, American Dairy Science Association

Language

English