Feedlot Systems

A black Angus cow stands in front of a Green Feed machine in a lot at the Feed Intake Unit

Feedlot systems research is incredibly important not only in understanding greenhouse gas emissions and mitigation methods, but it also helps better understand production efficiency and animal health. With the addition of expert researchers and our new Climate-Smart Research Facility, we look forward to conducting cutting-edge research about cattle production in feedlot environments.
"Effect of Cashew Nutshell Extract, Saponins and Tannins Addition on Methane Emissions, Nutrient Digestibility and Feeding Behavior of Beef Steers Receiving a Backgrounding Diet"

Cuervo, Wilmer, Camila Gómez, Federico Tarnonsky, Ignacio Fernandez-Marenchino, Araceli Maderal, Federico Podversich, Juan Vargas, and Nicolas DiLorenzo. Animals, October 2024.

"Performance, nutrient utilization and meat quality traits in Bos indicus cattle: a meta-analysis examining the effect of residual feed intake"

Daniela Alvarado, Rodrigo Torres, José Moreira, Yury Granja-Salcedo, Otavio Machado Neto, Luis Artur Chardulo, Mahesh Nair, Pedro Carvalho, Welder Baldassini. Tropical Animal Health and Production, July 2024.

"Association of morbidity, mortality, and average daily gain with transfer of passive immunity in dairy-beef crossbred calves up to 60 d of life"

Jessica Pereira, Fernanda Ferreira, Pedro Carvalho, Joao Bittar, Noelia Del-Rio, Marcos Marcondes. Journal of Dairy Science, May 2024. 

"Determination of gas flux and animal performance test duration of growing cattle in confined conditions"

Juan Vargas, Maya Swenson, Sara Place. Translational Animal Science, April 2024.

"Long Term Feeding Effects of a Vaccine against of Endotoxemia (ENDOVAC-Beef) on Growth Performance and Carcass Characteristics of Growing-Finishing Calf-Fed Holstein Steers"

Brooke Latack, Pedro Carvalho, Alejandro Plascencia, Richard Zinn. Iranian Journal of Applied Animal Science, March 2024.

"Influence of low-level tannin supplementation on comparative growth-performance of Holstein and Angus x Holstein cross calf-fed concentrate-based finishing diets for 328 days"

Pedro Carvalho, Brooke Latack, Marcos Ferraz, Lester Nolasco, Willi R Meireles, Heitor Oliveira, Richard Zinn. Journal of Animal Science. March 2024. 

"Influence of metabolizable protein and methionine supplementation on growth-performance of Holstein steer calves during the initial 112-d feedlot growing phase"

Jaime Salinas-Chavira, Pedro Carvalho, Brooke Latack, Marcos Ferraz, Martin Montano, Richard Zinn. Translational Animal Science, January 2024.

"Heritability and variance component estimation for feed and water intake behaviors of feedlot cattle"

Elizabeth Dressler, William Shaffer, Kelsey Bruno, Clint Krehbiel, Michelle Calvo-Lorenzo, Chris J Richards, Sara Place*, Udaya DeSilva, Larry Kuehn, Robert L Weaber, Jennifer Bormann, and Megan Rolf. Journal of Animal Science, November, 2023.

*This work was conducted while Dr. Place was still at Oklahoma State University.

"Heat Stress Mitigation Strategies in Feedyards: Use, Perceptions, and Experiences of Industry Stakeholders"​

Lauren Dean, Anthony Tarpoff, Kirsten Nickles, Sara Place, Lily Edwards-Callaway. Animals, September 2023


Meet Our Feedlot Systems Team:

Picture of Pedro Carvalho, Ph.D.

Pedro Carvalho, Ph.D.

Assistant Professor and Feedlot Specialist

Picture of Juan Vargas, Ph.D.

Juan Vargas, Ph.D.

Sustainable Beef Cattle Systems Postdoctoral Fellow

Picture of Sara Place, Ph.D.

Sara Place, Ph.D.

Assistant Professor of Feedlot Systems

Picture of Maya Swenson

Maya Swenson

Graduate Student

Picture of Kim Stackhouse-Lawson, Ph.D.

Kim Stackhouse-Lawson, Ph.D.

Director

Picture of Daniela Alvarado

Daniela Alvarado

Research Scholar