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当前位置: 首页 > 文章 > 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 动物营养学报 2013,25 (4) 165-170
Position: Home > Articles > Dietary Copper Supplemental Levels: Effects of Performance and Melanin Content in Tissues of Taihe Silky Fowls Aged 5 to 8 Weeks Chinese Journal of Animal Nutrition 2013,25 (4) 165-170

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

作  者：
许兰娇;黎观红;瞿明仁;游金明;易中华
单  位：
江西农业大学动物科技学院
关键词：
泰和乌骨鸡;铜;生产性能;黑色素;酪氨酸酶
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。
译  名：
Dietary Copper Supplemental Levels: Effects of Performance and Melanin Content in Tissues of Taihe Silky Fowls Aged 5 to 8 Weeks
作  者：
XU Lanjiao LI Guanhong QU Mingren* YOU Jinming YI Zhonghua(College of Animal Science and Technology,Jiangxi Agricultural University,Nanchang 330045,China)
关键词：
Taihe silky fowls;Cu;performance;melanin;tyrosinase
摘  要：
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.

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