动物营养学报 >

2017 , Vol. 29 >Issue 4: 1124 - 1131

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.04.006

禽营养 Poultry nutrition

5~8周龄京红1号蛋鸡饲粮赖氨酸需要量

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  • 中国农业科学院饲料研究所, 农业部饲料生物技术重点开放实验室, 生物饲料开发国家工程研究中心, 北京 100081
王晓翠(1983-),女,山东沂南人,助理研究员,博士,从事蛋鸡及蛋品质营养研究。E-mail:maque3001@163.com

收稿日期: 2016-09-28

  网络出版日期: 2017-04-14

基金资助

现代农业产业技术体系（CARS-41-K13）；家禽产业技术体系北京市创新团队（CARS-PSTP）

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Dietary Lysine Requirement for Jinghong Hens from 5 to 8 Weeks of Age

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  • National Engineering Research Center of Biological Feed, Key Laboratory of Feed Biotechnology of Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China

Received date: 2016-09-28

  Online published: 2017-04-14

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摘要

本试验旨在研究5~8周龄京红1号蛋鸡饲粮赖氨酸（Lys）的需要量。选取4周龄末京红1号蛋鸡母雏360只，随机分为5组，每组6个重复，每个重复12只鸡。饲粮Lys水平分别为0.70%、0.84%、0.98%、1.12%和1.26%，试验期4周。结果表明：0.84% Lys组蛋鸡平均日增重、8周龄体重和群体均匀度均显著高于1.26% Lys组（P<0.05）。0.98%和1.12% Lys组的体格发育显著优于1.26% Lys组（P<0.05）。0.98%和1.12% Lys组的十二指肠重、空肠长显著高于0.70%和1.26% Lys组（P<0.05）。0.84% Lys组胸腺指数显著高于0.98%、1.12%和1.26% Lys组（P<0.05）；0.84%、0.98%和1.12% Lys组法氏囊指数显著高于其他组（P<0.05）。0.84%、0.98%和1.12% Lys组血清总蛋白和白蛋白含量显著高于0.70%和1.26% Lys组（P<0.05）；0.98% Lys组血清尿素氮和尿酸含量显著低于1.26% Lys组（P<0.05）；0.84% Lys组血清碱性磷酸酶活性和血浆生长激素含量均显著高于0.70% Lys组（P<0.05）。根据8周龄鸡体重、群体均匀度、全净膛重、屠体重、心脏指数、肝脏指数、胫长、十二指肠重及血清尿酸含量等指标，各自拟合二次曲线，得出最佳饲粮Lys水平分别为0.906%、0.888%、0.931%、0.928%、0.889%、0.902%、0.902%、1.071%和0.958%。综上，推荐5~8周龄京红1号蛋鸡饲粮Lys需要量为0.93%。

关键词： 赖氨酸; 京红1号; 生长发育; 后备母鸡

本文引用格式

王晓翠, 武书庚, 宋丹, 张海军, 岳洪源, 王晶, 齐广海 . 5~8周龄京红1号蛋鸡饲粮赖氨酸需要量[J]. 动物营养学报, 2017 , 29(4) : 1124 -1131 . DOI: 10.3969/j.issn.1006-267x.2017.04.006

Abstract

The aim of this study was to determine the dietary lysine (Lys) optimal requirement for Jinghong laying hens from 5 to 8 weeks of age. Three hundred and sixty Jinghong hens at the end of 4-week-old were randomly allotted to 5 groups with 6 replicates of 12 birds each. The dietary Lys levels were 0.70%, 0.84%, 0.98%, 1.12% and 1.26%, respectively. The experiment lasted for 4 weeks. The results showed that, the average daily gain, body weight at 8 weeks of age and community evenness of hens in 0.84% Lys group were significantly higher than those in 1.26% Lys group (P<0.05). Birds fed 0.98% and 1.12% Lys diets had significantly higher body development, relative to those receiving 1.26% Lys diet (P<0.05). The duodenum weight and jejunum length in both 0.98% and 1.12% Lys groups were significantly higher than those in 0.70% and 1.26% Lys groups (P<0.05). The thymus index in 0.84% Lys group was significantly higher than that in 0.98%, 1.12% and 1.26% Lys groups (P<0.05). The bursa of Fabricious index in 0.84%, 0.98% and 1.12% Lys groups was higher than that in the other groups (P<0.05). The serum contents of total protein and albumin in 0.84%, 0.98% and 1.12% groups were significantly higher than those in 0.70% and 1.26% Lys groups (P<0.05). Compared to those receiving 1.26% Lys diet, hens fed 0.98% Lys diet had significantly lower serum contents of uric nitrogen and uric acid (P<0.05). The serum alkaline phosphatase activity and plasma growth hormone content in 0.84% Lys group were significantly higher than those in 0.70% Lys group (P<0.05). According to the quadratic regression analysis for final body weight, community evenness, eviscerated carcass weight, carcass weight, heart index, liver index, tibial length, duodenum weight and serum uric acid content, the optimal dietary levels of Lys for Jinghong hens were 0.906%, 0.888%, 0.931%, 0.928%, 0.889%, 0.902%, 0.902%, 1.071% and 0.958%, respectively. In conclusion, the dietary optimum level of Lys for Jinghong laying hens of 5 to 8 weeks of age is 0.93%.

Key words： lysine; Jinghong hens; growth and development; pullets

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