Calf Pneumonia Treatment Protocols: Antimicrobial Stewardship and Welfare

Calf pneumonia is the most common disease in young cattle; prompt treatment and antimicrobial stewardship are both welfare and public health priorities.

Key Facts

Calf pneumonia causes up to 25% of calf mortality in UK beef and dairy herds.
Mixed bacterial and viral aetiology is common; Mannheimia haemolytica, Pasteurella multocida, and BRSV are primary pathogens.
Daily clinical scoring using California scoring systems identifies cases before severe respiratory compromise.
Metaphylactic antibiotic treatment of in-contact calves during outbreaks reduces spread but raises resistance concerns.
NSAID analgesics alongside antibiotics significantly improve welfare outcomes and speed of recovery.
Vaccinating calves against BRSV, PI3, and IBR before housing reduces pneumonia incidence by 30-50%.

Welfare Considerations

Calf pneumonia causes significant suffering through fever, respiratory distress, and depression. Pain management is frequently omitted despite clear evidence that NSAIDs improve recovery rate and reduce suffering. Antimicrobial stewardship frameworks encourage targeted use rather than prophylactic treatment. Welfare-conscious respiratory disease management combines vaccination, monitoring, early targeted treatment with appropriate analgesia, and good housing ventilation.

What You Can Do

Implement calf respiratory scoring twice daily during housing and treat early-stage cases promptly.
Ensure NSAIDs are prescribed and administered alongside antibiotics for all pneumonia cases.
Vaccinate calves against respiratory viral pathogens before housing in consultation with your vet.
Review housing ventilation — cold, draughty conditions significantly increase pneumonia risk.