Koenig, Karen, Ph.D.
Chercheuse scientifique, nutrition des ruminants
Coordonnées :
5403 - 1 Avenue South
C.P. 3000
Lethbridge, (Alberta) T1J 4B1
Téléphone : 403-317-3341
Télécopieur : 403-317-2182
Courriel : karen.koenig@agr.gc.ca
Domaines d'expertise :
- Nutrition et santé digestive des ruminants
- Métabolisme des protéines, des acides aminés et de l’azote
- Mise au point de composés végétaux naturels pour modifier le fonctionnement du rumen
- Stratégies nutritionnelles visant à réduire les émissions d’ammoniac provenant des bovins en parc d’engraissement
- Gestion des éléments nutritifs de l’ensemble de la ferme et environnement
- Minéraux et métabolisme
- Bovins en parc d’engraissement
Projets en cours :
- Mise au point de technologies d’alimentation visant à accroître l’efficacité de l’utilisation des éléments nutritifs et intendance environnementale de l’élevage des bovins de boucherie
- Utilisation d’un agent réducteur pour éliminer le méthane entérique chez les bovins de boucherie
- Impact environnemental de l’utilisation des drêches de distillerie pour nourrir les bovins de boucherie
- Quantification et réduction de l’excrétion d’azote et des émissions d’ammoniac dans l’élevage des bovins de boucherie
Affiliations :
- Comité consultatif de rédaction (2006 à 2010) et Comité consultatif principal de rédaction (2011 à ce jour) pour la revue Animal Feed Science and Technology
- Rédactrice adjointe de la revue Canadian Journal of Animal Science (2005 à 2010)
- Membre de la Société canadienne de science animale, de l’American Society of Animal Science et de l’American Dairy Science Association
Publications de recherche
2019
- Aboagye, I.A., Oba, M., Koenig, K.M., Zhao, G.Y., 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, 97(5), 2230-2244. http://dx.doi.org/10.1093/jas/skz101
- Cordeiro, M.R.C., Rotz, A., Kroebel, R., Beauchemin, K.A., Hunt, D., Bittman, S., Koenig, K.M., McKenzie, D.B. (2019). Prospects of forage production in northern regions under climate and land-use changes: A case-study of a dairy farm in Newfoundland, Canada, 9(1), http://dx.doi.org/10.3390/agronomy9010031
2018
- Koenig, K.M., 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, 96(10), 4398-4413. http://dx.doi.org/10.1093/jas/sky273
- Koenig, K.M., Beauchemin, K.A., McGinn, S.M. (2018). Feeding condensed tannins to mitigate ammonia emissions from beef feedlot cattle fed high-protein finishing diets containing distillers grains, 96(10), 4414-4430. http://dx.doi.org/10.1093/jas/sky274
2017
- Koenig, K.M., and Beauchemin, K. A. 2017. Feeding tannins to reduce nitrogen losses from feedlot cattle fed high protein diets containing wheat distillers grains: ruminal fermentation, digestibility, and route of nitrogen excretion. J. Anim. Sci. 95 (Suppl. 4):279-280 (Abstr.). doi:10.2527/asasann.2017.569
- Lee, C., Araujo, R.C., Koenig, K.M., Beauchemin, K.A. (2017). Effects of encapsulated nitrate on growth performance, nitrate toxicity, and enteric methane emissions in beef steers: Backgrounding phase, 95(8), 3700-3711. http://dx.doi.org/10.2527/jas.2017.1460
- Lee, C., Araujo, R.C., Koenig, K.M., Beauchemin, K.A. (2017). In situ and in vitro evaluations of a slow release form of nitrate for ruminants: Nitrate release rate, rumen nitrate metabolism and the production of methane, hydrogen, and nitrous oxide, 231 97-106. http://dx.doi.org/10.1016/j.anifeedsci.2017.07.005
- Thomas, B.W., Stoeckli, J.L., Beck, R., Liu, K., Koenig, K.M., Beres, B.L., Hao, X., Gao, X. (2017). Nitrapyrin reduced nitrous oxide emissions from beef cattle urine patches on a semiarid tame pasture, 81(6), 1537-1547. http://dx.doi.org/10.2136/sssaj2017.04.0123
2016
- Koenig, K. M. and McGinn, S. M. 2016. Effect of temperature on ammonia emissions from feedlot cattle manure. J. Anim. Sci. 94, E-Suppl. 5/J. Dairy Sci. 99, E. Suppl. 1:569-570 (Abstr.). doi.org/10.2527/jam2016-1187
2015
- Lee, C., Araujo, R.C., Koenig, K.M., et Beauchemin, K.A. (2015). « Effects of encapsulated nitrate on eating behavior, rumen fermentation, and blood profile of beef heifers fed restrictively or ad libitum. », Journal of Animal Science, 93(5), p. 2405-2418. doi : 10.2527/jas.2014-8851
- Lee, C., Araujo, R.C., Koenig, K.M., et Beauchemin, K.A. (2015). « Effects of encapsulated nitrate on enteric methane production and nitrogen and energy utilization in beef heifers. », Journal of Animal Science, 93(5), p. 2391-2404. doi : 10.2527/jas.2014-8845
2013
- 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. Journal of Animal Science, 91 (5): 2310-2320
- Koenig, K.M. et 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, 91(5), p. 2295-2309. doi : 10.2527/jas.2012-5652
- Koenig, K.M., McGinn, S.M., et 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, 91(5), p. 2278-2294. doi : 10.2527/jas2012-5651
2011
- Koenig, K.M. et Beauchemin, K.A. (2011). « Proportion optimale d’orge transformée et d’ensilage d’orge dans la ration des bovins d’engrais : croissance, valorisation des aliments et propriétés des fèces. », Canadian Journal of Animal Science, 91(3), p. 411-422. doi : 10.4141/CJAS2010-039
- Mohammed, R., Zhou, M., Koenig, K.M., Beauchemin, K.A., et 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, p. 122-131. doi : 10.1016/j.anifeedsci.2011.04.061
2009
- Ametaj, B.N., Koenig, K.M., Dunn, S.M., Yang, W.-Z., Zebeli, Q., et Beauchemin, K.A. (2009). « Backgrounding and finishing diets are associated with inflammatory responses in feedlot steers. », Journal of Animal Science, 87(4), p. 1314-1320. doi : 10.2527/jas.2008-1196
- Koenig, K.M. et Beauchemin, K.A. (2009). « Addition d’un supplément de sélénium de levure aux rations contenant assez de sélénium: bilan du sélénium, concentration des hormones thyroïdiennes et transfert passif des immunoglobulines chez la vache et le veau. », Canadian Journal of Animal Science, 89(1), p. 111-122. doi : 10.4141/CJAS08090
Autres publications relatives à la science
2019
- Hunt, D; Bittman, S., Koenig, K. and Telford, G. Jump-Starting Fall Cover Crops By Relay Cropping; The Case of Italian Ryegrass and Corn. ASA, CSSA and SSSA International Annual Meetings Nov. 10-13, 2019.
2016
- Bittman, S., Hunt, D., Koenig, K., Duynisveld, J., Mckenzie, D., Kroebel, R., and Haak, D. "Semi-Virtual Model Farmlets to Study Nutrients in Livestock Farms: Proposed Dairy System Case Study. 2016. ASA-CSSA-SSSA International Annual Meeting 2016-Phoenix, AZ, Nov. 6-9.
- Hunt, D., Bittman, S., Koenig, K. 2016. "Increasing nutrient production on dairy farms by less frequent harvesting of late maturing grass varieties." ASA-CSSA-SSSA International annual meeting 2016-Phoenix, AZ, Nov. 6-9.
- Hunt, D., Bittman, S., Koenig, K. 2016. "Optimizing Corn Cover Crop Systems for Production of Dairy Feed in a Changing Climate in BC, Canada." ASA-CSSA-SSSA International Annual Meeting 2016-Phoenix, AZ, Nov. 6-9.
2013
- Koenig, K.M., Beauchemin, K.A., et Yang, W.-Z. (2013). « Processing Feed Grains: Factors Affecting the Effectiveness of Grain Processing for Beef and Dairy Cattle Production. », Western Nutrition Conference, Saskatoon, SK, Canada, September 24-26, 2013.
- Koenig, K.M., Beauchemin, K.A., et Yang, W.-Z. (2013). « Processing feed grains: factors affecting the effectiveness of grain processing for beef and dairy cattle production. », 34th Western Nutrition Conference – Processing, Performance & Profits, Saskatoon, SK, Canada, September 24 - 26, 2013, p. 62-73.
- Koenig, K.M., McGinn, S.M., et Beauchemin, K.A. (2013). « Feeding tannins to reduce ammonia emissions from feedlot cattle fed high protein finishing diets containing corn distillers grains. », CSAS-CMSA Joint Annual Meeting, Banff Park Lodge Resort Hotel and Conference Centre, Banff, AB, Canada, June 18-20, 2013, P56, p. 48. (Affiche)
2011
- Koenig, K.M., Beauchemin, K.A., et 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), p. 111. (Résumé)
- Koenig, K.M., Beauchemin, K.A., et 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. (Affiche)
- Koenig, K.M., Beauchemin, K.A., et 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), p. 111. (Résumé)
- Koenig, K.M., Beauchemin, K.A., et 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. (Affiche)
2009
- Koenig, K.M. (2009). « Increasing efficiency of nitrogen utilization in cattle. », Western Nutrition Conference, Winnipeg, MB, Canada, September 23-24, 2009, p. 66-77.
- Koenig, K.M., McGinn, S.M., et 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). (Résumé)
- Koenig, K.M., McGinn, S.M., et 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), p. 146. (Résumé)
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