Bovine respiratory disease in calves is the most significant welfare problem in young cattle, causing pain, growth setback, and death, yet is largely preventable through colostrum management and housing design.
Calf pneumonia causes acute welfare suffering — fever, respiratory difficulty, nasal discharge, depression, and reduced appetite. Young calves with BRD may die within days of infection if not treated. Those that survive may have permanently impaired lung function affecting lifetime productivity and welfare. The preventability of the condition through colostrum management and housing improvement makes calf pneumonia a particularly important welfare priority: most cases represent avoidable suffering rather than inevitable disease. Twice-daily observation of calves using validated sick calf scoring systems allows early detection before severe disease. Prompt antibiotic treatment of early-stage cases prevents progression to severe pneumonia with its associated welfare costs.