Dietary calcium or phosphorus deficiency impairs the bone development by regulating related calcium or phosphorus metabolic utilization parameters of broilers
| Autor: | Lin Lu, Yuxin Shao, S. F. Li, Tingting Li, Zongping Liu, Guan-zhong Xing, Liyang Zhang, Xiudong Liao, Xugang Luo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Male
Bone development Tibia bone chemistry.chemical_element Calcium broiler Metabolism and Nutrition calcium deficiency Animal science Animals Phosphorus deficiency Dietary calcium Completely randomized design lcsh:SF1-1100 metabolic utilization parameter Chemistry Phosphorus Broiler General Medicine musculoskeletal system Animal Feed Diet Calcium Dietary bone development Dietary Supplements Phosphorus Dietary Animal Science and Zoology lcsh:Animal culture Chickens phosphorus deficiency |
| Zdroj: | Poultry Science, Vol 99, Iss 6, Pp 3207-3214 (2020) Poultry Science |
| ISSN: | 0032-5791 |
| Popis: | An 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. A total of 504 one-day-old Arbor Acres male broilers were randomly assigned to 1 of 4 treatments with 7 replicates of 18 birds per replicate in a completely randomized design. A 2 (Ca levels: 1.00 and 0.35%) × 2 (nonphytate P [NPP] levels: 0.45 and 0.23%) factorial arrangement of treatments was adopted in the 21-day trial. The 4 treatments were the Ca- and P-adequate diet (1.00% Ca + 0.45% NPP), the Ca-deficient diet (0.35% Ca + 0.45% NPP), the P-deficient diet (1.00% Ca + 0.23% NPP), and the Ca- and P-deficient diet (0.35% Ca + 0.23% NPP). The greatest impact on tibia bone mineral density, bone breaking strength, and ash content was in the P-deficient diets, especially in broilers fed with the Ca-adequate diet, whereas adequate P and reduced Ca reduced (P < 0.05) these parameters compared with adequate Ca and P, but not to the same level as P deficiency. Furthermore, dietary Ca or P deficiency, especially adequate Ca and P deficiency decreased (P < 0.05) serum P, 25-hydroxyvitamin D3 (25-OHD3) contents, and tibia ash Ca and P contents but increased (P < 0.05) the serum Ca content and tibia alkaline phosphatase (ALP) activity compared with adequate Ca and P. The results from this study indicated that the bone development and Ca or P metabolic utilization parameters of broilers were the most sensitive ones to dietary P deficiency, followed by dietary Ca deficiency or Ca and P deficiencies. Dietary P deficiency impaired the bone development by increasing serum Ca content and tibia ALP activity but decreasing serum P, 25-OHD3 contents, and tibia ash Ca and P contents of broilers. Dietary Ca deficiency impaired bone development by increasing serum Ca content, tibia ALP activity, and tibia ash P content but decreasing serum P, 25-OHD3 contents, and tibia ash Ca content of broilers. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|