Chicken Respiratory Disease Welfare

Understanding how respiratory diseases affect broiler and laying hen welfare in commercial flocks.

Key Facts

Respiratory disease is one of the leading causes of mortality and suffering in poultry
Infectious bronchitis, Newcastle disease, and Mycoplasma are major respiratory pathogens
Ammonia from poor litter and ventilation significantly increases respiratory disease risk
Overcrowding increases pathogen transmission in poultry houses
Vaccination programmes reduce disease burden but cannot eliminate welfare impacts
Chronic respiratory disease causes persistent distress including labored breathing

Welfare Considerations

Respiratory disease causes significant and often prolonged suffering in poultry. Birds experiencing respiratory distress show labored breathing, reduced feed intake, lethargy, and social withdrawal. Because disease spreads rapidly in dense flocks, affected birds may suffer for extended periods before individual treatment or culling. Prevention through good biosecurity, vaccination, ventilation management, and appropriate stocking density is the most effective welfare strategy.

What You Can Do

Support producers that invest in ventilation systems and biosecurity protocols
Advocate for lower stocking densities that reduce pathogen spread in commercial flocks
Encourage routine monitoring of respiratory health indicators including mortality rates
Support research into poultry welfare-focused disease prevention strategies
Choose chicken products from farms with documented health and welfare management plans