Li Xin, Cai Xia, Wang Xiaoliang, Zhu Lihui, Yan Huaxiang, Yao Junfeng, Yang Changsuo
Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China.
National Poultry Engineering Technology Research Center, Shanghai 201106, China.
Animals (Basel). 2024 Dec 18;14(24):3655. doi: 10.3390/ani14243655.
Keel bone damage (KBD) is a prominent concern within the realm of the egg-laying industry, exerting substantial impacts on the welfare and productivity of laying hens. This comprehensive review undertakes a detailed exploration of the diverse factors contributing to KBD, such as inadequate calcium sources in the medullary bone, genetic factors, nutritional deficiencies, and physical stressors. The consequences of KBD on production performance, stress and inflammation levels, and the physical and chemical properties of the keel are meticulously examined. Additionally, the review evaluates the existing methods for assessing KBD, including keel curvature scoring, imaging techniques, palpation, biomechanical testing, behavioral observations, and biochemical markers. Finally, management strategies, including nutritional adjustments, genetic selection, and environmental modifications, are proposed to potentially mitigate the prevalence and severity of KBD, thereby aiming to enhance the welfare and productivity of laying hens.
龙骨损伤（KBD）是蛋鸡养殖行业中一个备受关注的问题，对蛋鸡的福利和生产性能产生重大影响。本综述详细探讨了导致龙骨损伤的多种因素，如髓质骨中钙源不足、遗传因素、营养缺乏和物理应激源等。深入研究了龙骨损伤对生产性能、应激和炎症水平以及龙骨物理和化学性质的影响。此外，本综述评估了现有的龙骨损伤评估方法，包括龙骨弯曲评分、成像技术、触诊、生物力学测试、行为观察和生化指标。最后，提出了包括营养调整、遗传选择和环境改善在内的管理策略，以降低龙骨损伤的发生率和严重程度，从而提高蛋鸡的福利和生产性能。
