Article
Bovine respiratory disease in feedlot cattle: environmental, genetic, and economic factors.
Journal of animal science - 1 Aug 2006
Snowder G D, Van Vleck L D, Cundiff L V, Bennett G L
Abstract excerpt
The objective of this study was to characterize genetic, environmental, and economic factors related to the incidence of bovine respiratory disease (BRD) in feedlot calves. Records from 18,112 calves representing 9 breeds (Angus, Braunvieh, Charolais, Gelbvieh, Hereford, Limousin, Pinzgauer, Red Poll, and Simmental) and 3 composite types (MARC I, MARC II, and MARC III) over a 15-yr period (1987 to 2001) were...
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