Bovine respiratory disease is the most economically significant and common disease affecting beef and dairy cattle, causing substantial suffering that is largely preventable through improved management.
Bovine respiratory disease represents an enormous welfare burden on the cattle industry because its primary driver, stress-related immune suppression, is largely a consequence of management practices. The sequence of weaning stress, transport stress, commingling with unfamiliar animals, and introduction to new housing creates cumulative immune compromise at a critical time. Affected cattle experience fever, laboured breathing, nasal discharge, and lethargy that constitute significant suffering. Early clinical detection and prompt treatment substantially improve welfare outcomes; delays in identification lead to more severe disease and higher mortality. Prevention-oriented approaches including pre-weaning vaccination, low-stress weaning protocols, and minimal commingling of animals from different sources can dramatically reduce incidence. These welfare improvements also align with antimicrobial stewardship goals by reducing the need for mass antibiotic treatment.