Journal of Integrative Agriculture ›› 2020, Vol. 19 ›› Issue (11): 2775-2783.DOI: 10.1016/S2095-3119(20)63302-0

所属专题: 动物营养合辑Animal Nutrition

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  • 收稿日期:2019-11-13 出版日期:2020-11-01 发布日期:2020-10-15

Effect of dietary calcium or phosphorus deficiency on bone development and related calcium or phosphorus metabolic utilization parameters of broilers from 22 to 42 days of age

YANG Yun-feng1*, XING Guan-zhong1, 3*, LI Su-fen3, SHAO Yu-xin1, ZHANG Li-yang1, LU Lin1, LUO Xu-gang2, LIAO Xiu-dong1 
  

  1. 1 Mineral Nutrition Research Division, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.China
    2 Poultry Mineral Nutrition Laboratory, College of Animal Science and Technology, Yangzhou University, Yangzhou 225000, P.R.China
    3 College of Animal Science and Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, P.R.China
  • Received:2019-11-13 Online:2020-11-01 Published:2020-10-15
  • Contact: Correspondence LUO Xu-gang, E-mail: wlysz@263.net; LIAO Xiu-dong, E-mail: liaoxd56@163.com
  • About author:YANG Yun-feng, E-mail: 604345120@163.com; * These authors contributed equally to this study.
  • Supported by:
    The present study was financially supported by the National Key R&D Program of China (2017YF0502200), the Key Program of the National Natural Science Foundation of China (31630073), the earmarked fund for China Agriculture Research System (CARS-41), the Agricultural Science and Technology Innovation Program, China (ASTIP-IAS09), and the earmarked fund for Hebei Chicken Innovation Team of Modern Agro-Industry Technology Research System, China (HBCT2018150203 and HBCT2018150206).

Abstract:

This experiment was conducted to investigate the effect of dietary calcium (Ca) or phosphorus (P) deficiency on bone development and related Ca or P metabolic utilization parameters of broilers from 22 to 42 days of age based on our previous study, which indicated that dietary Ca or P deficiency impaired the bone development by regulating related Ca or P metabolic utilization parameters of broilers from 1 to 21 days of age.  A total of 504 one-day-old Arbor Acres male broilers were randomly assigned to 1 of 4 treatments with 7 replicates in a completely randomized design, and fed the normal control and Ca- or P-deficient diets from 1 to 21 days of age.  At 22 days of age, the broilers were further fed the normal control diet (0.90% Ca+0.35% non-phytate P (NPP)), the P-deficient diet (0.90% Ca+0.18% NPP), the Ca-deficient diet (0.30% Ca+0.35% NPP) or the Ca and P-deficient diet (0.30% Ca+0.18% NPP), respectively.  The results showed that dietary Ca or P deficiency decreased (P<0.05) tibia bone mineral density (BMD), bone breaking strength (BBS), ash content, tibia ash Ca content and serum P content on days 28 and 42, but increased (P<0.05) tibia alkaline phosphatase (ALP) activity of broilers on day 42 compared with the control group.  Furthermore, the broilers fed the P-deficient diet had the lowest (P<0.05) tibia BMD, BBS, ash content, serum P content and the highest (P<0.05) serum Ca content on day 28 compared with those fed the Ca-deficient or Ca and P-deficient diets.  The results from the present study indicated that the bone development and related Ca or P metabolic utilization parameters of broilers were the most sensitive to dietary P deficiency, followed by dietary Ca deficiency or Ca and P-deficiency; dietary Ca or P deficiency impaired the bone development possibly by regulating serum Ca and P contents as well as tibia Ca content and ALP activity of broilers from 22 to 42 days of age.

Key words: calcium deficiency ,  phosphorus deficiency ,  bone development ,  metabolic utilization parameter ,  broiler