鲁西斗鸡饲粮适宜能量水平及生长规律  

Suitable Energy Level and Growth Rule of Luxi Game Chickens

作　　者：窦文洁[1] 姜淑贞[1] 张相伦[1] 杨维仁[1] 张桂国[1] 杨在宾[1] 陈冠军[1] 高翔 

机构地区：[1]山东农业大学动物科技学院,泰安271018 [2]中国斗鸡原种场,菏泽274600

出　　处：《动物营养学报》2013年第11期2576-2582,共7页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：山东省农业良种工程(鲁西斗鸡品种资源保护与开发)

摘　　要：本试验旨在研究饲粮代谢能（ME）水平对鲁西斗鸡生长性能的影响,并得出鲁西斗鸡的生长变化规律.选用1日龄健康鲁西斗鸡1 000只,随机分为5个组,每个组4个重复,每个重复50只,试验期分1～6周龄和7～20周龄2个阶段.试验各阶段的ME水平分别为：1～6周龄,11.98、12.19、12.38、12.62、12.81 MJ/kg;7～20周龄,11.63、11.82、12.03、12.25和12.45 MJ/kg.结果表明：1）饲粮ME水平对鲁西斗鸡平均日采食量、平均日增重无显著影响（P＞0.05）,饲粮ME水平对7～ 20周龄鲁西斗鸡料重比有显著影响（P＜0.05）,全期料重比以中ME组（1～6周龄：12.38 MJ/kg;7～20周龄12.03 MJ/kg）最小.2）1～ 20周龄,鲁西斗鸡平均日采食量（ADFI）与周龄（t）的变化方程为ADFI=-0.01＋5.73×t（R2=0.982 7,P＜0.000 1）;体重（BW）与周龄（t）变化方程为BW=1 607.60/（1 ＋22.53e-027t） （R2=0.996 7,P ＜0.000 1）.由此可见,以全期最佳料重比为依据,鲁西斗鸡饲粮适宜ME水平1～6周龄为12.38 MJ/kg,7～20周龄为12.03 MJ/kg.This experiment was conducted to study the effects of dietary metabolizable energy （ME） level on growth performance and formulate the growth model of Luxi game chickens.A total of 1 000 one-day-old Luxi game chickens were randomly divided into 5 groups with 4 replicates per group and 50 chickens per replicate.The feeding period was divided into two stages：1 to 6 and 7 to 20 weeks of age.The dietary ME levels were as follows：1 to 6 weeks of age,11.98,12.19,12.38,12.62 and 12.81 MJ/kg; 7 to 20 weeks of age,11.63,11.82,12.03,12.25 and 12.45 MJ/kg.The results showed as follows：1） average daily feed intake （ADFI） and average daily gain of chickens were not significantly affected by dietary ME level aged from 1 to 20 weeks （P 〉 0.05）,while dietary ME level significantly affected feed to gain of chickens aged from 7 to 20 weeks （P 〈 0.05）,and the middle ME level group （1 to 6 weeks of age：12.38 MJ/kg; 7 to 20 weeks of age：12.03 MJ/kg） was the lowest during whole stage.2） From 1 to 20 weeks of age,the best fitting models of ADFI,body weight （BW） with age （t） as follows：ADFI=-0.01 ＋5.73 xt （R2 =0.982 7,P〈0.000 1）; BW=1 607.60/（1 ＋22.53e-0.27t） （R2 =0.996 7,P 〈0.000 1）.In conclusion,according to the best feed to gain,the suitable ME level of Luxi game chickens aged from 1 to 6 and 7 to 20 weeks were 12.38 and 12.03 MJ/kg,respectively.

关 键 词：鲁西斗鸡 代谢能 生长性能 生长规律 

分 类 号：S831[农业科学—畜牧学]