Gabriel Ribeiro

Animal and Poultry Science

Saskatchewan Beef Industry Chair

My research focus is on uncovering nutritional strategies to improve health, performance, and profitability, while simultaneously lessening the environmental impact of beef cattle production. This includes research focused on optimizing grain and forage processing technologies, consequently improving rumen health, feed efficiency, and beef cattle productivity. Other areas of interest are the development of nutritional strategies to reduce greenhouse gases emissions in beef cattle, and alternatives to the use of antibiotics as growth promoters. In vitro, in situ, and in vivo approaches are used in my research program to optimize beef cattle nutrition. The Rumen Simulation Technique (RUSITEC), a semi-continuous in vitro system, is often used in my research to investigate ruminal fermentation, digestion, and metabolism of different feedstuffs, additives, and/or toxins. Overall, my research goal is to identify technologies, and nutritional and management practices to improve the sustainability and productivity of forage-based and feedlot beef cattle production systems.

 

Post-Doctoral Fellow, Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada (AAFC), Lethbridge, AB, Canada

Ph.D. Animal Science/Ruminant Nutrition, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil with one year term at the Agriculture and Agri-Food Canada - Lethbridge, AB, Canada

M.Sc. Animal Science/ Ruminant Nutrition, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil

Veterinary Medicine (DVM), Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil

Peters, J. F., M. L. Swift, G. B. Penner, H. A. Lardner, T. A. McAllister, and G. O. Ribeiro. 2025. Comparison of two internal markers and near infrared spectroscopy (NIRS) for predicting nutrient digestibility in beef cattle offered diets varying in forage quantity and quality. Canadian Journal of Animal Science. https://doi.org/10.1139/cjas-2024-0050

Paterson, T. J., E. O’Hara, R. J. Gruninger, G. B. Penner, H. A. Lardner, E. Stephens, W. Yang, K. A. Beauchemin, T. A. McAllister, and G. O. Ribeiro. 2024. Assessment of forage inclusion strategies as a means of reducing liver abscesses in finishing feedlot cattle. Applied Animal Science, 40:279-296. https://doi.org/10.15232/aas.2023-02481

Reynolds, M. R., K. Stanford, D. M. Meléndez, K. S. Schwartzkopf-Genswein, T. A. McAllister, B. R. Blakley, J. J. McKinnon, and G. O. Ribeiro. 2024. Effect of continuous or intermittent feeding of ergot contaminated grain in a mash or pelleted form on the performance and health of feedlot beef steers. Journal of Animal Science, 102:skae060. https://doi.org/10.1093/jas/skae060

Sarich, J. M., K. Stanford, K. S. Schwartzkopf-Genswein, T. A. McAllister, B. R. Blakley, G. B. Penner, G. O. Ribeiro. 2023. Effect of increasing concentration of ergot alkaloids in the diet of feedlot cattle: performance, welfare, and health parameters, Journal of Animal Science, 101:skad287. https://doi.org/10.1093/jas/skad287

Peters, J. F., M. L. Swift, G. B. Penner, H. A. Lardner, T. A. McAllister, and G. O. Ribeiro. 2023. Predicting fecal composition, intake, and nutrient digestibility in beef cattle consuming high forage diets using near infrared spectroscopy (NIRS). Translational Animal Science, 7:txad043. https://doi.org/10.1093/tas/txad043

Sarich, J. M., K. Stanford, K. S. Schwartzkopf-Genswein, R. J. Gruninger, T. A. McAllister, S. J. Meale, B. R. Blakley, G. B. Penner, and G. O. Ribeiro. 2022. Effect of ergot alkaloids and a mycotoxin deactivating product on in vitro ruminal fermentation using the rumen simulation technique (RUSITEC). Journal of Animal Science, 100:skac226. https://doi.org/10.1093/jas/skac226

Government of Canada

Natural Sciences and Engineering Research Council of Canada (NSERC)

Agriculture and Agri-Food Canada (AAFC)

Beef Cattle Research Council (BCRC)

Saskatchewan Ministry of Agriculture

Sustainable Canadian Agriculture Partnership (SCAP)

Agriculture Development Fund (ADF)

Results Driven Agriculture Research (RDAR)

Saskatchewan Cattle Association (SCA)

Alberta Beef Producers (ABP)

Undergradute:

ANSC 430 - Intensive Management of Beef Cattle

Graduate:

ANSC 802 - Advanced Animal Metabolism 
ANSC 815 - Advanced Ruminant Nutrition and Metabolism 
ANSC 816 - Advanced Rumen Microbiology and Biotechnology