Farm Animals

Laying Hen Keel Bone Fracture Causes

Keel bone fractures affect the majority of laying hens in most commercial systems and are a major welfare concern in the egg industry.

Key Facts

Studies report 50-80% of hens in cage-free systems have keel fractures
Fractures increase with age and are more common in heavier breeds
Falls from perches are the leading mechanical cause
Bone quality is influenced by calcium nutrition and exercise levels
Hens with fractures show altered movement and may have reduced feed intake

Welfare Considerations

Keel bone fractures cause acute and chronic pain in laying hens. This is one of the most significant welfare problems in commercial egg production. Industry, researchers, and retailers must urgently address this through design, genetics, and nutrition.

What You Can Do

Choose eggs from producers actively working to reduce keel fractures
Support research into keel bone fracture prevention
Advocate for industry accountability on hen bone health