畜牧兽医学报 ›› 2016, Vol. 47 ›› Issue (7): 1396-1404.doi: 10.11843/j.issn.0366-6964.2016.07.012

• 动物营养 • 上一篇    下一篇

0~4周龄京红1号蛋鸡饲粮赖氨酸需要量研究

武书庚,王晓翠,宋丹,张海军,岳洪源,王晶,齐广海*   

  1. (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)
  • 收稿日期:2015-09-08 出版日期:2016-07-23 发布日期:2016-07-23
  • 通讯作者: 齐广海,研究员,博士生导师,主要从事蛋鸡营养与饲料研究,E-mail:Guanghai_qi@163.com
  • 作者简介:武书庚(1972-),男,河北平乡人,副研究员,主要从事动物营养调控研究,E-mail:wushugeng@caas.cn;王晓翠(1983-),女,黑龙江哈尔滨人,博士,主要从事蛋鸡及蛋品质营养研究,E-mail:maque3001@163.com。武书庚和王晓翠同为第一作者
  • 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);国家科技支撑计划(2011BAD26B03)

Studies on Dietary Lysine Requirement of Jinghong Laying Hens from Hatch to the Age of 4 Weeks

WU Shu-geng#,WANG Xiao-cui#,SONG Dan,ZHANG Hai-jun,YUE Hong-yuan,WANG Jing,QI Guang-hai*   

  1. (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:2015-09-08 Online:2016-07-23 Published:2016-07-23

摘要:

旨在研究中国自主培育的京红1号蛋雏鸡(0~4周龄)饲粮赖氨酸需要量。本研究选取300只体重相近、健康的1 日龄京红1号商品蛋雏鸡,采用单因素完全随机试验设计,随机分5个处理,饲粮赖氨酸水平分别为1.00%、1.10%、1.20%、1.30%和1.40%,每处理5个重复,每重复12只鸡。试验期4 周。结果表明:1.20% Lys组蛋雏鸡平均日增重为8.17 g•d-1,显著高于1.00%、1.30%和1.40%Lys组(P<0.05);1.20%Lys组的4周龄蛋雏鸡体重为265.70 g,显著高于1.00%、1.30%和1.40% Lys组(P<0.05)。1.20% Lys组的胰腺重量显著高于其他组(P<0.05)。1.20% Lys组的空肠指数最小(1.71%),显著低于1.00% Lys组(P<0.05),且空肠相对长度显著大于其他组(P<0.05)。1.20%和1.30% Lys组的回肠指数显著低于1.00%、1.10%和1.40%Lys组(P<0.05);1.20% Lys组的回肠相对长度显著大于1.00%、1.10%和1.40%Lys组(P<0.05)。1.20% Lys组4周龄蛋雏鸡的体重、屠体重及全净膛重均显著高于其他组(P<0.05)。1.20% Lys组蛋雏鸡的心、肺重量显著大于其他组(P<0.05);1.20% Lys组蛋雏鸡的肾重量显著大于1.00%、1.30%和1.40%组(P<0.05);1.10%、1.20%及1.30% Lys组的肝重量显著大于其他组(P<0.05),且胫长显著大于1.00% Lys组(P<0.05)。1.10%和1.20%Lys组蛋雏鸡的胸宽显著大于其他组(P<0.05)。1.30%Lys组蛋雏鸡的脾脏指数(0.290%)显著高于1.00%和1.10%组,1.30%Lys组的法氏囊指数(0.543%)显著高于1.00%组(P<0.05)。1.10%和1.20%Lys组的血清尿酸(UA)含量显著低于1.00%和1.40%Lys组(P<0.05)。根据群体均匀度、4 周龄鸡体重、平均日增重、屠体重、心、肝、回肠指数、回肠长度及血清UA含量等指标各自拟合二次曲线,最适宜Lys水平分别为1.145%、1.158%、1.155%、1.154%、1.151%、1.155%、1.189%、1.204% 和1.142%。饲粮最佳Lys平均水平为1.161%。综合生长性能、屠体指标、器官指数及血清生化等方面的指标,推荐0~4周龄京红1号蛋雏鸡饲粮赖氨酸水平为1.16%。

Abstract:

The study was conducted to investigate the effect of dietary lysine (Lys) levels on growth performance and organ development of Jinghong laying hens,and to estimate the optimal dietary lysine requirement of Jinghong laying hens aged from hatch to the age of 4 weeks.A total of 300 1-day-old Jinghong laying hens were randomly allotted to 5 groups with 5 replicates per group and 12 hens per replicates.Lys was added to the basal diet to obtain the Lys level at 1.00%,1.10%,1.20%,1.30% and 1.40%,respectively.The trial lasted 4 weeks.The results showed as follows:The average daily gain in the 1.20% Lys group was significantly higher than that in 1.00%,1.30% and 1.40% Lys groups(P<0.05);The body weight at 4 weeks in the 1.20% Lys group was significantly higher than that in 1.00%,1.30% and 1.40% Lys groups (P<0.05).The pancreas weight in the 1.20% Lys group was significantly higher than that in the other groups (P<0.05).The jejunum index in the 1.20% Lys group was significantly lower than that in the 1.00% Lys group,and the jejunum relative length in the 1.20% Lys group was significantly higher than that in the other groups (P<0.05).The ileum index in 1.20% and 1.30% Lys groups were significantly lower than that in 1.00%,1.10% and 1.40% Lys groups (P<0.05),while the ileum relative length in 1.2% Lys group was significantly higher than that in 1.00%,1.10% and 1.40% Lys groups (P<0.05).The body weight,carcass weight and eviscerated carcass weight in the 1.20% Lys group at the age of 4 weeks were significantly higher than that in the other groups(P<0.05)。Birds fed 1.20% Lys had significantly higher heart weight,lung weight than that in the other Lys groups.The kidney weight in the 1.20% Lys group was significantly higher than that in 1.00%,1.30% and 1.40% Lys groups (P<0.05).Liver weight in 1.10%,1.20% and 1.30% Lys groups were significantly higher than that in the other groups (P<0.05),and the shinbone length were significantly higher than that in 1.00% Lys group (P<0.05).Birds fed 1.10% and 1.20% Lys had significantly higher chest width than that in the other Lys groups (P<0.05).The spleen index(0.290%) and bursa of fabricius index(0.543%) in the 1.30% Lys group were significantly higher than that in the 1.00% Lys group(P<0.05).Hens fed 1.10% and 1.20% Lys had significantly lower serum uric acid content than that in 1.00% and 1.40% Lys groups(P<0.05).According to the quadratic regression analysis based on community evenness,body weight,average daily gain,carcass weight,heart weight,liver weight,ileum index,ileum relative length and uric acid content,the optimal dietary levels of Lys for Jinghong laying hens were 1.145%,1.158%,1.155%,1.154%,1.151%,1.155%,1.189%,1.204% and 1.142%,respectively.The optimal averaged Lys levels was 1.161%.These results indicate that addition of appropriate Lys level in diet can promote growth performance and organ development.The optimal Lys level in diet of Jinghong laying hens from hatch to the age of 4 weeks is 1.16%.

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