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Identification Of Snps Located On Bta 6 And Bta 20 Significantly Associated With Bovine Respiratory Disease In Crossbred Cattle, S. L. Miller, S. Mizell, R. Walker, T. Page, Matthew D. Garcia

Animal, Dairy, and Veterinary Science Faculty Publications

The objective of the present study was to evaluate single nucleotide polymorphisms (SNPs) located in two quantitative trait locus (QTL) regions (BTA 6 and BTA 20) that are associated with bovine respiratory disease (BRD). A population of 323 crossbred steers sired by five purebred sire breeds during 2010-2013 (Angus, Braford, Braunvieh, Charolais, and Simmental) were evaluated for BRD susceptibility during the finishing process at a commercial feedlot. A total of 21 animals representing all sire breeds were affected with BRD at some time during the finishing process over the 4-year period. Although multiple sire breeds were evaluated in the present …