| 饲粮铜添加水平对泰和乌骨鸡生产性能和组织黑色素含量的影响 |
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| 引用本文： | 许兰娇,黎观红,瞿明仁,游金明,易中华.饲粮铜添加水平对泰和乌骨鸡生产性能和组织黑色素含量的影响[J].动物营养学报,2012(4):747-752. |
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| 作者姓名： | 许兰娇 黎观红 瞿明仁 游金明 易中华 |
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| 作者单位： | 江西农业大学动物科技学院，南昌 ３３００４５ |
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| 基金项目： | 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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| 摘 要： | 本试验旨在研究饲粮铜添加水平对 １～２８日龄泰和乌骨鸡生产性能和组织黑色素含量的影响。选用 １日龄泰和乌骨鸡 ２７０只，随机分成 ６组，每组设 ３个重复，每个重复 １５只鸡。试验鸡分别饲喂在基础饲粮（铜含量为 ４．７５ｍｇ／ｋｇ）中添加 ０、５、１５、３０、６０、１２５ｍｇ／ｋｇ铜的饲粮，饲养至 ２８日龄。结果表明：饲粮铜不同添加水平对 １～２８日龄泰和乌骨鸡平均日增重、平均日采食量和料重比均无显著影响（Ｐ＞０．０５），但适量添加可显著或极显著影响其血清、肝脏、肾脏、皮肤及肌肉的黑色素含量、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 ３０ｍｇ／ｋｇ时，泰和乌骨鸡血清和组织酪氨酸酶活性及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泰和乌骨鸡组织黑色素含量，其适宜添加水平为 ３０ｍｇ／ｋｇ。
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| 关 键 词： | 泰和乌骨鸡 铜 生产性能 黑色素 酪氨酸酶 |
Dietary Copper Supplemental Level Affects Performance and Melanin Content in Tissues of Taihe Silky Fowls |
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| XU Lanjiao,LI Guanhong,QU Mingren,YOU Jinming,YI Zhonghua.Dietary Copper Supplemental Level Affects Performance and Melanin Content in Tissues of Taihe Silky Fowls[J].Acta Zoonutrimenta Sinica,2012(4):747-752. |
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| Authors: | XU Lanjiao LI Guanhong QU Mingren YOU Jinming YI Zhonghua |
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| Institution: | (College of Animal Science and Technology,Jiangxi Agricultural University,Nanchang 330045,China) |
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| 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 1 to 28 days.A total of 270 one-day-old Taihe silky fowls 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 with 0,5,15,30,60 and 125 mg/kg Cu,respectively,and were raised to 28 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 1 to 28 days were not significantly influenced by dietary Cu supplemental level(P>0.05).However,the melanin content and tyrosinase activity in serum,liver,kidney,skin and muscle of Taihe silky fowls aged 1 to 28 days were significantly affected by dietary suitable 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 diet can stimulate melanin biosynthesis of Taihe silky fowls,and the optimum supplemental level of Cu is 30 mg/kg. |
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| Keywords: | Taihe silky fowls Cu performance melanin tyrosinase |
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