动物营养学报 >

2017 , Vol. 29 >Issue 9: 3099 - 3108

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.09.011

禽营养 Poultry nutrition

饲粮添加不同水平维生素D3对肉仔鸡生长性能和骨磷代谢利用的影响

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  • 中国农业科学院北京畜牧兽医研究所, 矿物元素营养研究室, 北京 100193
温倩(1990-),女,重庆梁平人,硕士研究生,从事动物营养与饲料科学研究。E-mail:wenqian20@126.com

收稿日期: 2017-03-01

  网络出版日期: 2017-09-08

基金资助

中央级公益性科研院所基本科研业务费专项资金（2016ywf-yb-8）；国家自然科学基金面上项目（31472116）；国家自然科学基金重点项目（31630073）；国家现代农业产业技术体系岗位专家专项经费（CARS-42）；中国农业科学院科技创新工程专项经费（ASTIP-IAS08）

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Effects of Different Dietary Vitamin D3 Levels on Growth Performance and Bone Phosphorus Metabolic Utilization of Broilers

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  • Mineral Nutrition Research Division, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China

Received date: 2017-03-01

  Online published: 2017-09-08

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摘要

本试验旨在研究饲粮中添加不同水平维生素D3（VD3）对肉仔鸡生长性能及骨磷代谢利用的影响。试验选用480只1日龄艾拔益加肉公雏，采用2×4双因子完全随机设计，设2个饲粮非植酸磷水平[0.45%和0.23%（实测值为0.44%和0.21%）]与4个VD3添加水平（0、1 000、2 000和4 000 IU/kg），共8个组，每组6个重复，每个重复10只鸡。试验期21 d。结果表明，与0.21%非植酸磷水平相比，0.44%非植酸磷水平显著提高肉仔鸡平均日增重（ADG）、平均日采食量（ADFI）、胫骨灰分含量和胫骨灰分磷含量（P<0.05），显著降低料重比（F/G）和胫骨灰分磷绝对沉积率（P<0.05）；与不添加VD3相比，饲粮中添加VD3显著提高肉仔鸡ADG、15~21和1~21日龄ADFI、胫骨灰分含量和胫骨灰分磷绝对沉积率（P<0.05），显著降低1~21日龄肉仔鸡F/G（P<0.05）；0.21%非植酸磷水平下，与不添加VD3相比，饲粮中添加VD3显著降低肉仔鸡死亡率（P<0.05），显著提高21日龄肉仔鸡胫骨灰分磷重量（P<0.05），添加2 000 IU/kg VD3显著提高14日龄肉仔鸡胫骨灰分磷重量（P<0.05）；0.44%非植酸磷水平下，与不添加VD3相比，饲粮中添加VD3显著提高肉仔鸡胫骨灰分磷重量（P<0.05）。以上结果表明，饲粮中添加VD3可提高肉仔鸡的生长性能并降低死亡率，促进磷在骨骼中的代谢利用。

关键词： VD3; 磷; 胫骨磷代谢利用; 肉仔鸡

本文引用格式

温倩, 吕林, 张丽阳, 廖秀冬, 罗绪刚 . 饲粮添加不同水平维生素D3对肉仔鸡生长性能和骨磷代谢利用的影响[J]. 动物营养学报, 2017 , 29(9) : 3099 -3108 . DOI: 10.3969/j.issn.1006-267x.2017.09.011

Abstract

This experiment was conducted to investigate the effects of different dietary vitamin D3 (VD3) levels on growth performance and bone phosphorus metabolic utilization of broilers. A completely randomized factorial design involved two non-phytate phosphorus (NPP) contents[0.45% and 0.23% (the measured content was 0.44% and 0.21%, respectively)] and four VD3 supplemental levels (0, 1 000, 2 000, and 4 000 IU/kg). A total of 480 one-day-old Arbor Acres male broilers were allotted to 8 groups with 6 replicate cages of 10 broilers per cage for each group. The experiment lasted for 21 days. The results showed that the broilers fed diets containing 0.44% NPP had significantly higher average daily gain (ADG), average daily feed intake (ADFI), tibia ash content and its phosphorus content (P<0.05), while had significantly lower ratio of feed to gain (F/G) and tibia ash phosphorus absolute deposition rate (P<0.05) compared with the broilers fed diets containing 0.21% NPP. Dietary VD3 significantly enhanced ADG, ADFI during 15 to 21 days of age and 1 to 21 days of age, tibia ash content and its phosphorus absolute deposition rate of broilers (P<0.05), significantly decreased the F/G of broilers during 1 to 21 days of age (P<0.05) compared to the diet without addition of VD3. When the broilers fed diets containing 0.21% NPP, dietary VD3 significantly decreased the mortality of broilers (P<0.05), and significantly promoted tibia ash phosphorous weight of broilers at 21 days of age (P<0.05), while dietary 2 000 IU/kg VD3 significantly promoted tibia ash phosphorous weight of broilers at 14 days of age (P<0.05) compared to the diet without addition of VD3. When the broilers fed diets containing 0.44% NPP, dietary VD3 significantly enhanced tibia ash phosphorous weight of broilers compared to the diet without addition of VD3 (P<0.05). The results indicate that dietary VD3 can enhance the growth performance and decrease the mortality and promoted phosphorus metabolic utilization in bone of broilers.

Key words： VD3; phosphorus; tibia phosphorus metabolic utilization; broilers

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