Stocking density profoundly affects broiler welfare through its effects on air quality, movement, and social behaviour.
Stocking density is one of the most powerful determinants of broiler welfare. At high densities, air quality deteriorates, movement is restricted, normal behaviour is suppressed, and contact dermatitis from wet litter increases. Reducing stocking density to welfare-appropriate levels improves nearly every measurable welfare indicator. Consumer willingness to pay for lower-density production is a key driver of change.