动物营养学报 >

2015 , Vol. 27 >Issue 1: 76 - 84

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.01.011

禽营养 Poultry Nutrition

饲粮粗蛋白质和代谢能水平对9~10周龄四川白鹅生产性能和氮平衡的影响

  • 李琴 ,
  • 陈明君 ,
  • 彭祥伟
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  • 重庆市畜牧科学院, 重庆 402460

收稿日期: 2014-07-02

  网络出版日期: 2015-01-10

基金资助

国家现代农业(水禽)产业技术体系建设专项资金项目(CARS-43-15);农业科技成果转化资金项目(2013GB2F100398)

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Effects of Dietary Crude Protein and Metabolizable Energy Levels on Performance and Nitrogen Balance of Sichuan White Geese Aged from 9 to 10 Weeks

  • LI Qin ,
  • CHEN Mingjun ,
  • PENG Xiangwei
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  • Chongqing Academy of Animal Science, Chongqing 402460, China

Received date: 2014-07-02

  Online published: 2015-01-10

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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9~10周龄四川白鹅生产性能和氮平衡的影响。采用3×3双因素试验设计,饲粮ME水平分别为12.86、12.13、11.43 MJ/kg,CP水平分别为15%、13%、11%。选择432只56日龄体重相近的健康四川白鹅,随机分成9组,每组4个重复,每个重复12只。试验期为14 d。在试验第8天,每组挑选8只体重接近各组平均体重的试验鹅进行代谢试验。结果表明:1)CP水平对日干物质(DM)采食量、料重比有显著影响(P<0.05),随着CP水平的增加,日DM采食量、料重比降低;ME水平对日DM采食量有极显著影响(P<0.01),随着ME水平的增加,日DM采食量降低;CP水平对每克增重消耗CP和ME量有显著(P<0.05)或极显著(P<0.01)影响,随着CP水平的增加,每克增重消耗CP量上升,每克增重消耗ME量降低。2)CP水平对食入氮、粪尿氮、沉积氮、氮利用率、粪尿总能(GE)、GE代谢率有显著(P<0.05)或极显著(P<0.01)影响,随着CP水平的增加,食入氮、粪尿氮、沉积氮、粪尿GE增加;CP和ME水平的互作对沉积氮、氮利用率有显著影响(P<0.05)。由此可知,9~10周龄四川白鹅适宜CP水平为13%,ME水平为11.43 MJ/kg。

关键词： 四川白鹅; 粗蛋白质; 代谢能; 氮平衡; 生产性能

本文引用格式

李琴 , 陈明君 , 彭祥伟 . 饲粮粗蛋白质和代谢能水平对9~10周龄四川白鹅生产性能和氮平衡的影响[J]. 动物营养学报, 2015 , 27(1) : 76 -84 . DOI: 10.3969/j.issn.1006-267x.2015.01.011

Abstract

This experiment was conducted to study the effects of crude protein (CP) and metabolizable energy (ME) levels on performance and nitrogen balance of Sichuan white geese aged from 9 to 10 weeks. Four hundred and thirty two 57-day-old healthy Sichuan white geese with similar body weight were used in a 3×3 double factorial design trial and randomly allocated into 9 groups with 4 replicates in each group and 12 geese in each replicate. The geese were fed 9 experimental diets with three levels of ME (12.86, 12.13 and 11.43 MJ/kg) and three levels of CP (15%, 13% or 11%). The feeding experiment lasted for 14 days. Eight geese per group were picked up on the basis of individual weight immediate to the average weight of every group on day 8 of the experiment, and the geese were used in a metabolism trial. The results showed as follows: 1) CP level had significant effects on daily dry matter (DM) intake and feed to gain ratio (P<0.05), the daily DM intake and feed to gain ratio were decreased with CP level increased; ME level had significant effect on daily DM intake (P<0.01), the daily DM intake was decreased with ME level increased; the interaction between CP and ME levels had significant effect on the consumed CP and ME for gain per gram (P<0.05 or P<0.01), with CP level increased, the consumed CP for gain per gram was increased, the consumed ME for gain per gram was decreased. 2) CP level had significant effects on nitrogen intake, nitrogen excretion from excrement, deposited nitrogen, GE excretion from excrement and availability of GE (P<0.05 or P<0.01), the nitrogen intake, nitrogen excretion from excrement, deposited nitrogen, GE excretion from excrement were increased with CP level increased. The interaction between dietary CP and ME levels had significant effects on deposited nitrogen and availability of nitrogen (P<0.05). The results suggest that for Sichuan white geese aged from 9 to 10 weeks, the suitable dietary levels of CP and ME are 13% and 11.43 MJ/kg, respectively.

Key words： Sichuan white geese; crude protein; metabolizable energy; nitrogen balance; performance

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