Evaluating the timing of bovine respiratory disease morbidity and mortality in feedlot cattle by first treatment, fatal disease onset, and days from first treatment to death

Abstract

Little research has evaluated risk factors influencing the timing of bovine respiratory disease (BRD); the main focus of previ­ous BRD research has been on environmental and demographic factors influencing disease frequency. The study objective was to descriptively evaluate typical BRD temporal patterns for cat­tle in U.S. Great Plains feedyard systems.