Keel bone fractures affect the majority of laying hens in most housing systems and represent one of the most significant unresolved welfare challenges in commercial egg production.
Keel bone fractures represent a widespread welfare problem that has not been adequately addressed despite decades of research. Many fractures go undetected as hens continue to lay and eat even when in pain. The welfare impact is significant - hens with fractures show altered posture, avoid perches, and show signs of reduced comfort behaviours. Addressing this problem requires action across the supply chain from breeders to farm management, and consumers and retailers can drive change by demanding welfare standards that include keel bone health metrics.