Farm Animals

Sheep Respiratory Disease and Welfare

Ovine respiratory disease complex causes significant morbidity and mortality in sheep, with prevention and early treatment being welfare priorities.

Key Facts

Respiratory disease is the second most common cause of sheep mortality
Maedi-visna, OPA and bacterial pneumonia are primary respiratory pathogens
Poor ventilation and overcrowding are primary risk factors for outbreaks
Early antibiotic treatment significantly reduces mortality and duration of suffering
Vaccination against some pathogens including Pasteurella is available

Welfare Considerations

Respiratory disease causes significant pain and distress. Affected sheep often hide illness until severely compromised. Daily health checks enabling early detection, prompt treatment and improved housing ventilation are the primary welfare interventions. Biosecurity preventing introduction of new pathogens protects herd welfare.

What You Can Do

Maintain daily sheep health inspections during housing periods
Ensure adequate ventilation in housing to reduce respiratory disease risk
Discuss vaccination programs against respiratory pathogens with your vet