Dr. Kim Ominski

• PhD (Animal Science), University of Manitoba, Canada

• ANSC 4520 Ruminant Production Systems-Meat

Research interests

Since joining the department in 2001, Dr. Ominski has developed a multidisciplinary, systems-based research program examining the productivity and environmental sustainability of forage-based beef cattle production systems. These projects have brought together expertise from several university departments to examine issues of greenhouse gas production, as well nutrient and pathogen cycling, in both preserved forage and pasture production systems. Involvement of provincial and federal commodity groups and government agencies have ensured best management practices developed as a consequence of this research and are effectively disseminated. Prior to joining the University of Manitoba, Kim worked as a regional livestock specialist with Manitoba Agriculture, Food and Rural Initiatives.

2025 - 2026

• Donelly, M., Ominski, K.H., Cattani, D.J., Kroebel, R., Pogue, S.J. and E.J. McGeough. 2026. Greenhouse gas intensity from beef systems grazing stockpiled intermediate wheatgrass in the late fall/early winter with impacts from fertilizer and legume integration.  Livestock Science 304: 105879.  https://doi.org/10.1016/j.livsci.2025/10.1016.
• Encabo, J.B., M.R.C. Cordeiro; E.J. McGeough; D.Walker; K.H. Ominski; T.A. McAllister. 2026. Large-scale estimation of carrying capacities in agricultural crown lands of Manitoba, Canada using land cover datasets. Agric. Syst. 234: 104667.
• Tambadou, H., A. Le Heiget, B. Zwick, G. Dallago, B. Hagen, C. Winder, J.C. Plaizier, J. Kinley, K. Ominski, E. Pajor, H. Watson, and M. King. 2026. Not your average dairy farmer: Clustering dairy farmers of Western Canada and Ontario based on management practices and well-being. Journal of Dairy Science. S0022-302(26)00126-8.  DOI:10.3168/jds.2025-27820
• Lin, L., A. Neves., K. Ominski and l. Guan. 2026. Metatranscriptomics uncovers diet-driven structural, ecological, and functional adaptations in the rumen microbiome linked to feed efficiency. ISME Communications, 6(1): ycaf251.  https://doi.org/10.1093/ismeco/ycaf251.
• Oretomiloye, F., T. McAllister., K. Ominski and S. Terry. 2026. Evaluation of hemp hulls and screenings as alternative feed ingredients for ruminants. Canadian Journal of Animal Science. https://doi.org/10.1139/cjas-2025-0117.
• Hansen, Janine; Ominski, Kim; Terry, Stephanie A.; Garcia, Vicky; Stanford, K.; McAllister, Tim A. 2025. Ensiling of Food Waste for Subsequent Inclusion in Ruminant Diets. Canadian Journal of Animal Science. 105. https://doi.org/10.1139/cjas-2025-0021.
• Gunte. K, R. White, K. G. Mengistu, D. Fulawka, G. Legesse, T.A. McAllister, K, Wittenberg, E.J. McGeough, M. Cordeiro and K. Ominski. 2025. Feed and Land Requirements for Livestock Production in Canada. Canadian Journal of Animal Science. 105: 1-14
• André L. A. Neves, Ricardo Augusto Mendonça Vieira, Einar Vargas-Bello-Pérez, Yanhong Chen, Tim A. McAllister  Kim H. Ominski, Limei Lin, Le Luo Guan. 2025. Impact of feed composition on rumen microbial dynamics and phenotypic traits in beef cattle. Microorganisms 13(2):310 https://doi.org/10.3390/microorganisms13020310.
• Stephens, E., I. Aboagye, G. Mengistu, T. McAllister and K. Ominski. Economic ad circular economy analysis of including potato waste in beef feedlot diets: A Canadian case study: Frontier in Sustainability  https://doi.org/10.3389/frsus.2025.1628164.
• Hossam E. Abdel Moniem; Majid Iravani; Tim McAllister; Kim Ominski; Helene H. Wagner. 2025. Divergent trends in structural landscape connectivity from historic and potential future grassland conversion in Alberta, Canada. Plos One. DOI:10.1371/journal.pone.0325729
• Mengistu, G., T. McAllister, D. Fulawka, I. Aboagye, G. Legesse, K. Stanford, M. Cordeiro, K. Gunte, F. Omonijo, K. Wittenberg, and K. Ominski. 2025. Can using food waste as feed reduce the environmental footprint of Canadian beef production? A case study of cull potatoes. Agric. Syst. 227:10432.
• Robinson, S., Tamayao, P.J., Saleem, A.M., Ominski, K., McAllister, T., Crow, G., Wittenberg, K. and E. J. McGeough. 2025. Effects of byproduct feed inclusion in a grass hay-based diet on nutrient disappearance, total gas and CH4 production, rumen fermentation and protozoal populations in an artificial rumen (RUSITEC). Animal Production Science. Animal Production Science 65, AN24186 https://doi.org/10.1071/AN24186.
• Sydney Fortier, Kim H. Ominski, Deanne Fulawka, Isaac A. Aboagye, Genet Mengistu, H (Bart) A. Lardner, Getahun Legesse, Marcos Cordeiro Mario Tenuta, and Tim A. McAllister. 2025. Environmental impacts associated with the removal of productivity-enhancing technologies from three different beef steer post-weaning management systems. Canadian Journal of Animal Science. https://doi.org/10.1139/cjas-2024-0155
• E.J. McGeough, Y. Lawley, G. Mengistu, N. Brar, K.H. Ominski, and S.C. Sheppard. 2025. Preliminary investigation of corn intercropping for potential grazing of beef cattle: biomass yield and chemical composition in late fall and early winter. Canadian Journal of Animal Science. 105: 1-6.