文献类型： 外文期刊
第一作者： Teng, Xiangqi
作者： Teng, Xiangqi;Xu, Danlei;Liu, Zhihui;Yang, Naixi;Luo, Dongliu;Wang, Haibin;Ge, Ming;Zhang, Ruili;Zhang, Weiqian;Teng, Xiangqi;Xu, Danlei;Liu, Zhihui;Yang, Naixi;Luo, Dongliu;Wang, Haibin;Ge, Ming;Zhang, Ruili
作者机构：
关键词： Low dietary phosphorus; Endocrine; Tibia; OPG/RANKL Signaling pathway; Caged laying hens
期刊名称：PREVENTIVE VETERINARY MEDICINE （ 影响因子：2.67； 五年影响因子：2.933 ）
ISSN： 0167-5877
年卷期： 2020 年 181 卷
页码：
收录情况： SCI
摘要： Osteoporosis is a common bone metabolic disease in caged laying hens. This disease affects animal welfare and economic costs. In this study, a model of osteoporosis induced by low dietary phosphorus was established. A total of sixty 22-week-old Roman white laying hens were randomly divided into two groups, including a control group (group C) and a low dietary phosphorus group (group P). The effects of low dietary phosphorus on the endocrine and tibial osteoprotegerin (OPG)/nuclear factor kappa B receptor activating factor ligand (RANKL) signaling pathways of osteoporosis in caged laying hens were analyzed by serology, bone biomechanics, molecular biology and histopathology. The results showed that low dietary phosphorus decreased the production performance, and egg quality of laying hens and increased the contents of serum calcium (Ca), osteocalcin (OCN), alkaline phosphatase (ALP) and tartrate-resistant acid phosphatase (TRACP). The contents of serum phosphorus, calcitonin (CT), OPG and tibial biomechanics index decreased. The bone mineral density (BMD), cortical bone thickness and the expression level of OPG protein in tibia decreased. The expression of OCN, nuclear factor kappa B receptor activating factor (RANK) and RANKL protein increased. Low dietary phosphorus caused thinning and fracture of the bone trabeculae and enlargement of the bone marrow cavity of tibia. Our results suggest that phosphorus may affect bone metabolism by regulating the OPG/RANKL signaling pathway.
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