Modern fast-growing broiler breeds experience chronic health problems driven by genetics, making breed selection the most impactful single lever for chicken welfare improvement.
Broiler genetics represents perhaps the most leveraged single factor in chicken welfare. The chronic pain and disability caused by fast growth rates affects billions of individual animals and cannot be adequately mitigated by housing improvements alone. An animal physically unable to support its own bodyweight will suffer regardless of whether that housing is enriched or not. The welfare science is clear: slower-growing breeds show dramatically lower rates of the musculoskeletal and metabolic conditions that define the welfare crisis in modern broiler production. The challenge is economic: slower growth means higher cost, and competitive markets consistently pressure buyers toward lowest cost. Supply chain commitments from major food companies, backed by consumer willingness to pay modest premiums, are the primary mechanism driving breed change in the absence of strong regulatory action.