Respiratory diseases are among the most welfare-significant conditions in commercial poultry, causing significant suffering in affected flocks.
Respiratory disease causes prolonged suffering in affected chickens. The struggle to breathe is acutely distressing. Birds with severe infections experience lethargy, inability to access food and water, and social exclusion from healthy flock members. High-density confinement accelerates disease spread, meaning welfare failures compound rapidly. Effective biosecurity, vaccination programs, and improved housing conditions form the most humane approach to prevention.