动物营养学报 >

2015 , Vol. 27 >Issue 12: 3708 - 3719

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.12.009

禽营养 Poultry Nutrition

15~56日龄如皋黄鸡蛋鸡粗蛋白质和代谢能的需要量

  • 卢建 ,
  • 曲亮 ,
  • 李永峰 ,
  • 沈曼曼 ,
  • 李尚民 ,
  • 窦套存 ,
  • 胡玉萍 ,
  • 王克华
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  • 中国农业科学院家禽研究所, 扬州 225125

收稿日期: 2015-07-02

  网络出版日期: 2015-12-14

基金资助

现代农业产业技术体系建设专项资金(CARS-41-K02);江苏省农业三新工程项目[SXGC(2014)290,SXGC(2015)299];国家科技支撑项目(2011BAD28B0303,2012BAD39B0401)

收起

Dietary Crude Protein and Metabolic Energy Requirements of Rugao Yellow Laying Hens Aged from 15 to 56 Days

  • LU Jian ,
  • QU Liang ,
  • LI Yongfeng ,
  • SHEN Manman ,
  • LI Shangmin ,
  • DOU Taocun ,
  • HU Yuping ,
  • WANG Kehua
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  • Poultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou 225125, China

Received date: 2015-07-02

  Online published: 2015-12-14

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摘要

本试验旨在研究饲粮粗蛋白质(CP)和代谢能(ME)水平对15~56日龄如皋黄鸡蛋鸡生长性能和骨骼发育的影响。试验选用14日龄体况良好、体重(BW)接近的如皋黄鸡蛋鸡2700只,随机分成15组,每组6个重复,每个重复30只鸡。采用3×5双因子完全随机试验设计,因子1为CP水平,设17.50%、19.00%和20.50% 3个水平,因子2为ME水平,设11.11、11.51、11.92、12.34和12.78 MJ/kg 5个水平,试验期42 d(15~56日龄)。结果表明:1)饲粮CP、ME水平均显著影响蛋鸡35和56日龄BW(P<0.05),且其存在显著的交互作用(P<0.05)。2)饲粮CP和ME水平均显著影响蛋鸡15~35日龄和15~56日龄平均日增重(ADG)和料重比(F/G,P<0.05);饲粮ME水平显著影响蛋鸡15~35日龄、36~56日龄和15~56日龄平均日采食量(ADFI,P<0.05)。饲粮CP和ME水平对蛋鸡15~35日龄和15~56日龄ADG的影响存在显著交互作用(P<0.05),对36~56日龄ADG及各阶段ADFI和F/G的影响不存在显著交互作用(P>0.05)。3)饲粮CP水平显著影响蛋鸡56日龄跖围及胫骨和股骨的长度和重量(P<0.05);饲粮ME水平显著影响蛋鸡56日龄跖长和跖围及胫骨和股骨长度(P<0.05);饲粮CP和ME水平对蛋鸡56日龄跖长的影响存在显著交互作用(P<0.05),对蛋鸡56日龄胫骨和股骨的长度和重量的影响均不存在显著交互作用(P>0.05)。由此可见,综合考虑生长性能和骨骼发育指标,如皋黄鸡蛋鸡15~56日龄饲粮适宜CP水平为19.00%,适宜ME水平为12.78 MJ/kg。

关键词： 地方特色蛋鸡; 粗蛋白质; 代谢能; 生长性能; 骨骼发育

本文引用格式

卢建 , 曲亮 , 李永峰 , 沈曼曼 , 李尚民 , 窦套存 , 胡玉萍 , 王克华 . 15~56日龄如皋黄鸡蛋鸡粗蛋白质和代谢能的需要量[J]. 动物营养学报, 2015 , 27(12) : 3708 -3719 . DOI: 10.3969/j.issn.1006-267x.2015.12.009

Abstract

This experiment was conducted to evaluate the effects of dietary crude protein(CP) and metabolic energy(ME) levels on growth performance and bone development in Rugao yellow laying hens aged from 15 to 56 days. Two thousand and seven hundred 14-day-old Rugao yellow laying hens with a similar body weight were assigned to 15 groups with 6 replicates per group and 30 hens per replicate. This experiment took a 3×5 factorial design with 3 CP levels(17.50%, 19.00% and 20.50%) and 5 ME levels(11.11, 11.51, 11.92, 12.34 and 12.78 MJ/kg). The trial period lasted for 42 d(from 15 to 56 days of age). The results showed as follows:1) the body weight at 35 and 56 days of age was significantly affected by dietary CP and ME levels(P<0.05), and the interaction between them was significantly(P<0.05). 2) The average daily weight gain(ADG) and the ratio of feed to gain(F/G) of hens aged from 15 to 35 and 15 to 56 days were significantly affected by dietary CP and ME levels(P<0.05), and the average daily feed intake(ADFI) of hens aged from 15 to 35, 36 to 56 and 15 to 56 days was significantly affected by dietary ME level(P<0.05). Significant interaction was found between effects of dietary CP and ME levels in ADG of hens aged from 15 to 35 and 15 to 56 days(P<0.05), but no significant interaction was found in ADG of hens aged from 35 to 56 days and ADFI and F/G during every period(P>0.05). 3) The shank circumference and the length and weight of tibia and femur of hens at 56 days of age were significantly affected by dietary CP level(P<0.05), and the shank length, shank circumference and the length of tibia and femur were significantly affected by dietary ME level(P<0.05). Significant interaction was found between effects of dietary CP and ME levels in shank length at 56 days of age, but no significant interaction was found in the length and weight of tibia and femur(P>0.05). In conclusion, with indexes of growth performance and bone development, the appropriate dietary CP and ME levels for Rugao yellow laying hens aged from 15 to 56 days are 19.00% and 12.78 MJ/kg, respectively.

Key words： local chicken breed; crude protein; metabolic energy; growth performance; bone development

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