Evaluation of the Effectiveness of a Commercial Mannheimia (Pasteurella) haemolytica Vaccine in a Commercial Feedlot
A single, 2-ml injection of a Mannheimia (Pasteurella) haemolytica bacterin-toxoid was administered subcutaneously to calves on arrival at the feedlot. Calves receiving the bacterin-toxoid had reduced crude mortality. There were no differences in BRD-specific mortality, morbidity or average daily ga...
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