Farm Animal Welfare

Farm Cattle: Respiratory Disease in Dairy Calves

Bovine respiratory disease is the leading cause of calf mortality and morbidity in dairy systems, requiring integrated prevention and early treatment.

Key Facts

BRD affects approximately 15-25% of dairy calves before weaning in intensive systems
Pre-weaned dairy calves are more vulnerable than beef calves due to management system intensity
Failure of passive transfer from inadequate colostrum multiplies BRD risk substantially
Good housing ventilation and hygiene are the primary non-vaccination prevention measures
Treatment within 24 hours of first signs dramatically improves welfare outcomes

Welfare Considerations

BRD causes acute respiratory distress, systemic illness, and pain in calves that are already adapting to separation from the dam. The welfare harm is preventable through proactive management including colostrum protocols, housing standards, and vaccination. Early treatment dramatically reduces suffering duration. Investment in BRD prevention has among the best welfare return of any management change in dairy calf rearing.

What You Can Do

Implement rigorous colostrum management as the primary BRD prevention measure
Ensure adequate ventilation in calf housing without cold draughts
Vaccinate against key BRD pathogens according to veterinary advice
Observe all calves twice daily for early respiratory signs
Treat confirmed BRD promptly with antibiotics and NSAIDs