Keel Bone Research and Laying Hen Welfare Progress

Scientific research on keel bone fractures in laying hens has identified causes and prevention strategies, with industry adoption of recommendations gradually improving welfare outcomes.

Key Facts

Research identifies perch height, diameter, and approach angle as key keel fracture risk factors
Ramps rather than abrupt jumps to perches significantly reduce fall-related keel fractures
Genetic selection criteria that include keel bone health are being developed by major breeding companies
Aviary system design changes guided by welfare research have reduced fracture incidence in some trials
UK and EU welfare audits now include keel bone palpation as a welfare outcome indicator

Welfare Considerations

Scientific progress on keel bone fractures has moved from demonstrating the problem exists to identifying practical solutions. Research showing that perch design, positioning, and substrate reduce fracture incidence provides the foundation for design standards. The challenge is translating research findings into industry-wide practice at the scale needed to benefit the billions of hens affected. Certification programs that make keel bone fracture rates a compliance criterion create the market incentive for infrastructure investment.

What You Can Do

Choose eggs certified by standards that include keel bone monitoring and design requirements
Support research funding for applied laying hen welfare science
Advocate for keel bone fracture rates to be included in egg product certification standards
Reduce egg consumption or choose alternatives to reduce demand for conventional production
Ask your egg supplier about their perch design standards and keel bone monitoring practices