Desert Research and Extension Center
Desert Research and Extension Center
Desert Research and Extension Center
University of California
Desert Research and Extension Center


Feedlot cattle nutrition and management

Richard Zinn, Professor, Animal Science, 1004 Holton Rd., El Centro, CA  92243, 760 356 3068,

Enhancing efficiency of feedlot cattle production through improvements in nutrition, health and management. For further information about Feedlot cattle studies conducted at DREC, please access the CattleCal newsletter at:

Recent publications:

Buenabad, B. C. Latack, R. A. Zinn. 2020. Effect of Supplemental Calcium Levels on Feedlot Growth Performance and Dietary Net Energy Utilization during the Receiving Feeding Period of Calf-Fed Holstein Steers. O J. Anim. Sci. 10: 1-9.

H. V. Carvalho, B. C. Latack, L. Buenabad, and R. A. Zinn. 2020. Influences of implant hormone strategy on growth performance of calf-fed Holstein steers fed in excess of 300 days. Appl J. Anim. Sci. 37:199-206.

F. MontaƱo, J. O. Chirino, B. C. Latack, J. Salinas-Chavira, and R. A. Zinn,. 2019. Influence of supplementation of growing diets enriched with rumen-protected methionine and lysine on feedlot performance and characteristics of digestion in Holstein steer calves. Appl. Anim. Sci. 35: 318-324

C. Latack, L. Buenabad, and R. A. Zinn. 2019. Influence of virginiamycin supplementation on growth performance, carcass characteristics liver abscess incidence, with two different implant strategies in calf-fed Holstein steers. Appl Anim Sci 35:628-633. 


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