Randomized longitudinal study to test the effect of pre-calving vaccination of range beef cows and other factors on the incidence of calf pneumonia

Abstract

Pneumonia is a leading cause of sickness and death in beef calves prior to feedlot entry. The objective of this study was to test the effect of pre-calving vaccination of beef cows and other factors on the subsequent incidence of calf pneumonia on a ranch with a history of incidence of calf pneumonia > 10%.