Effects of Feeding OmniGen- AF® on Immune Function, Performance, and Carcass Characteristics during the Feeding Period

Authors

Joe O. Buntyn, University of Nebraska-Lincoln
Sara E. Sieren, University of Nebraska-Lincoln
Curtis J. Bittner Bittner, University of Nebraska-LincolnFollow
Dirk Burken, University of Nebraska-LincolnFollow
Galen E. Erickson, University of Nebraska-LincolnFollow
Nicole C. Burdick Sanchez, University of Nebraska-Lincoln
Jeff A. Carroll, University of Nebraska-Lincoln
Steven J. Jones, University of Nebraska-LincolnFollow
Ty B. Schmidt, University of Nebraska-LincolnFollow
Keven C. Dehann, University of Nebraska-Lincoln
Troy J. Wistuba, University of Nebraska-Lincoln

Date of this Version

2016

Citation

2016 Nebraska Beef Cattle Reports

Comments

© The Board Regents of the University of Nebraska. All rights reserved.

Abstract

OmniGen- AF (Phibro Animal Health, Quincy, IL) was fed to steers to evaluate the effects on the metabolic and immune response during an immune challenge, as well as feedlot performance. Th e inclusion of OmniGen- AF for either the first 28 d or the entire feeding period) did not impact feedlot performance or carcass characteristics. However, within a subset of cattle receiving an immune challenge (the endotoxin lipopolysaacharide; LPS), OmniGen- AF supplementation did alter the metabolic and immune profile of steers. These results suggest that feeding of OmniGen- AF may enhance the metabolic and immune response if cattle are challenged by bovine respiratory disease.