/ Keel Bone Content for 澳门六合彩开奖结果走势图 en /news/improving-layer-hen-welfare-better-bone-health <p><span><span><span>Keel bone damage, such as deviations or fractures in a bird鈥檚 breastbone, is a prevalent problem among commercial laying hens. This damage may be painful for hens and can be linked to the number and quality of their eggs. </span></span></span></p> August 31, 2023 - 9:40am Emily C Dooley /news/improving-layer-hen-welfare-better-bone-health