Bovine respiratory disease is the most costly health problem in beef production and causes significant animal suffering, with vaccination programs being the primary welfare prevention tool.
Bovine respiratory disease causes genuine and significant suffering in affected cattle. Fever, difficulty breathing, and chest pain create a welfare burden comparable to severe pneumonia in humans. The high prevalence of BRD in feedlot systems reflects the inherent stress of transportation, commingling of animals from different sources, and rapid diet changes that compromise immune function. Vaccination programs that reduce BRD incidence directly reduce the number of cattle experiencing this suffering, making them a clear welfare priority rather than merely economic interventions.