Farm Animal Welfare

Stocking Density and Broiler Welfare Outcomes

Broiler chicken stocking density is one of the strongest predictors of welfare outcomes. Evidence consistently shows that reducing density improves gait, reduces mortality, and decreases disease rates.

Key Facts

EU minimum stocking density for broilers is 33 kg per square meter, with derogations to 42 kg
Higher densities correlate with worse foot pad dermatitis, hock burns, and gait scores
Each 5 kg per square meter reduction in density shows measurable welfare improvement
Welfare certifications like RSPCA Assured require maximum 30 kg per square meter
Air quality in high-density barns causes respiratory irritation and eye disease

Welfare Considerations

The relationship between stocking density and broiler welfare is among the most well-established findings in farm animal welfare science. Crowded birds cannot perform normal behaviors, experience worse air quality, and compete for resources in ways that increase stress and injury. Density reductions represent one of the most direct welfare improvements available to the broiler industry.

What You Can Do

Choose chicken from certifications with lower maximum stocking density standards
Ask fast food chains and retailers about the stocking density standards in their supply chains
Advocate for lower maximum stocking density limits in poultry welfare regulations
Support companies that have committed to comprehensive chicken welfare improvements