Farm Animal Welfare

Laying Hen Keel Bone Fracture Prevention

Keel bone fractures affect up to 80% of laying hens in some systems, causing chronic pain and representing one of the most significant welfare challenges in egg production.

Key Facts

Keel bone fractures occur from collision with perches, falls and osteoporosis
Prevalence in commercial flocks ranges from 30% in aviary systems to 80% in enriched cages
Fractured keel bones cause chronic pain that reduces activity and affects quality of life
Perch design, height and surface material influence fracture rates
Genetic selection for keel bone strength is in early stages across commercial breeds

Welfare Considerations

Keel bone fractures represent the most pervasive chronic pain condition in laying hens, affecting millions of birds. The condition is largely invisible to producers and consumers. Prevention requires a systems approach including perch design, bone health management and genetic selection.

What You Can Do

Support egg producers committed to keel bone health monitoring and reduction programmes
Advocate for keel bone fracture prevalence as a mandatory welfare reporting metric
Choose eggs from certified higher-welfare producers that include bone health standards