The stocking density at which broiler chickens are raised is one of the most significant determinants of welfare outcome; higher densities correlate with worse gait scores, skin lesions, and mortality.
Stocking density interacts with breed, ventilation, litter management, and lighting to determine welfare outcomes. Even modest reductions in density produce measurable improvements in gait score, footpad dermatitis, and mortality. The Better Chicken Commitment, adopted by over 200 companies, sets a more welfare-protective density standard alongside requirements for slower-growing breeds and environmental enrichment.