Viral Pneumonia in Cattle: Prevention and Welfare

Viral pathogens including BRSV, IBR, and PI3 are key contributors to bovine respiratory disease, requiring vaccination and management to protect herd welfare.

Key Facts

Bovine respiratory syncytial virus (BRSV) is a leading cause of respiratory disease in young cattle
IBR (infectious bovine rhinotracheitis) caused by BHV-1 causes severe respiratory and reproductive disease
Parainfluenza-3 (PI3) predisposes cattle to secondary bacterial pneumonia
Viral pneumonia peaks in autumn when housing begins and mixing of groups occurs
Effective vaccines covering BRSV, IBR, and PI3 are available and highly protective
Stress from weaning, transport, and mixing amplifies disease severity
Early treatment with NSAIDs alongside antibiotics reduces fever and improves welfare outcomes

Welfare Considerations

Viral pneumonia causes fever, labored breathing, nasal discharge, and profound malaise. Cattle with respiratory disease are in genuine distress - fever impairs appetite, respiratory effort is exhausting, and secondary bacterial infections extend illness duration. Prevention through vaccination, reduced stress management at housing, and good ventilation prevents suffering before it occurs. Early recognition and treatment including pain relief is a welfare imperative.

What You Can Do

Vaccinate calves against BRSV, IBR, and PI3 before the high-risk autumn period
Minimize stressful procedures (weaning, dehorning, castration) being combined with housing
Ensure good ventilation in housing without draughts on lying areas
Monitor respiratory rates and temperatures at housing and intervene early
Include anti-inflammatory treatment as part of any respiratory disease treatment protocol