Dr. Sheila Purdum is professor of poultry nutrition at University of Nebraska, Department of Animal Science. She can be reached at email@example.com. Dr. Pamela Eusebio is poultry scientist at Case Foods. She can be reached at Eusebio0410@yahoo.es.
One of the major welfare issues facing the egg industry is the high incidence of keel bone fractures or deformities in cage-free and cage housing systems. Bone fractures are not only welfare concerns, but also can negatively affect egg production. In particular, keel fractures account for 90 percent of bone breaks in alternative housing systems at end of lay.