动物营养学报 >

2013 , Vol. 25 >Issue 4: 827 - 832

DOI: https://doi.org/10.3969/j.issn.1006-267x.2013.04.021

研究简报 Short Communications

饲粮铜添加水平对5～8周龄泰和乌骨鸡生产性能及组织黑色素含量的影响

  • 许兰娇 ,
  • 黎观红 ,
  • 瞿明仁 ,
  • 游金明 ,
  • 易中华
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  • 江西农业大学动物科技学院, 南昌 330045

收稿日期: 2012-10-25

  网络出版日期: 2013-03-25

基金资助

江西省主要学术与技术带头人资助计划(2008DD00800);江西省科技支撑计划重点项目(20061B0201500);江西省教育厅项目(GJJ08181)

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Dietary Copper Supplemental Levels: Effects of Performance and Melanin Content in Tissues of Taihe Silky Fowls Aged 5 to 8 Weeks

  • XU Lanjiao ,
  • LI Guanhong ,
  • QU Mingren ,
  • YOU Jinming ,
  • YI Zhonghua
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  • College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, China

Received date: 2012-10-25

  Online published: 2013-03-25

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摘要

本试验旨在研究饲粮铜添加水平对5～8周龄泰和乌骨鸡生产性能及组织黑色素含量的影响。选用29日龄泰和乌骨鸡270只,随机分成6组,每组3个重复,每个重复15只鸡。试验鸡饲喂在基础饲粮(铜含量为4.77 mg/kg)中分别添加0、5、15、30、60、125 mg/kg铜的饲粮,饲养至56日龄。结果表明:饲粮添加适量铜可显著影响5～8周龄泰和乌骨鸡平均日增重、平均日采食量和料重比(P<0.05),且在30 mg/kg时生产性能达到最佳。饲粮添加适量铜可显著或极显著影响血清、肝脏、肾脏、皮肤及肌肉的黑色素含量及酪氨酸酶活性(P<0.05或P<0.01),并呈现出随饲粮铜添加水平的提高先升后降的趋势。当饲粮铜添加水平为30 mg/kg时,血清和组织酪氨酸酶活性及组织黑色素含量达到峰值。由此可知,玉米-豆粕型基础饲粮中添加铜可提高生产性能和组织黑色素含量,其适宜添加水平为30 mg/kg。

关键词： 泰和乌骨鸡; 铜; 生产性能; 黑色素; 酪氨酸酶

本文引用格式

许兰娇 , 黎观红 , 瞿明仁 , 游金明 , 易中华 . 饲粮铜添加水平对5～8周龄泰和乌骨鸡生产性能及组织黑色素含量的影响[J]. 动物营养学报, 2013 , 25(4) : 827 -832 . DOI: 10.3969/j.issn.1006-267x.2013.04.021

Abstract

The aim of this study was to investigate the effects of dietary copper (Cu) supplemental level on performance and melanin content in tissues of Taihe silky fowls aged 5 to 8 weeks. A total of 270 Taihe silky fowls aged 29 days were randomly allotted to 6 groups with 3 replicates per group and 15 birds per replicate. The birds were fed the corn-soybean meal based diet (containing 4.77 mg/kg Cu) with 0, 5, 15, 30, 60 and 125 mg/kg Cu, respectively, and were raised to 56 days of age. The results showed as follows: the average daily gain (ADG), the average daily feed intake (ADFI) and the ratio of feed to gain (F/G) of Taihe silky fowls aged from 5 to 8 weeks were significantly influenced by appropriate Cu supplementation (P<0.05), and peaked at 30 mg/kg supplementation. And the melanin content and tyrosinase activity in serum, liver, kidney, skin and muscle of Taihe silky fowls were significantly affected by appropriate Cu supplementation (P<0.05 or P<0.01). All above parameters tended to increase at first and then decrease with increasing Cu supplemental level, and peaked at 30 mg/kg supplementation. It is concluded that the supplementation of Cu in the corn-soybean meal based diet can increase performance and melanin content in tissues of Taihe silky fowls, and the optimum supplemental level is 30 mg/kg.

Key words： Taihe silky fowls; Cu; performance; melanin; tyrosinase

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