摘要
为了研究文昌阉鸡的蛋白质需要,选取健康、体重相近的75日龄文昌阉鸡(70日龄去势)96只,随机分成4组,分别饲喂代谢能等营养相同而实测蛋白水平为11.75%、12.60%、13.81%、14.73%的日粮,试验期56 d。对试验数据进行曲线估计,通过拟合方程方法确定饲料粗蛋白需要量,结果表明:从平均日增重考虑,75~88日龄、89~102日龄、103~116日龄、117~131日龄、75~131日龄文昌阉鸡的饲料最适粗蛋白水平分别为13.31%、13.59%、13.02%、13.06%和13.22%;从平均日采食量考虑,75~88日龄、89~102日龄、103~116日龄、117~131日龄、75~131日龄文昌阉鸡的饲料最适粗蛋白水平分别为13.05%、13.41%、12.28%、13.06%和13.14%;从料重比考虑,75~88日龄、89~102日龄、103~116日龄、117~131日龄、75~131日龄文昌阉鸡的饲料最适粗蛋白水平分别为13.61%、13.32%、13.07%、13.23%和13.34%;饲料粗蛋白水平对主要屠宰指标无显著影响,但会影响脂肪在体内沉积。因此建议文昌阉鸡饲料粗蛋白水平为13.0%~13.5%。
The experiment was conducted to study the protein requirement of wenchang caponized chickens. A total of 96,healthy and similar Wenchang caponized chickens which is 75-day-old were randomly divided into 4 treatment groups with 6 replicates of 4 chickens and fed the same dietary nutrient level except protein. The protein of 4 treatment diets was 11.75%,12.60%,13.81%and 14.73% respectively. The experiment lasted for 56 days. The equation of fitting equation was used to determine the requirement of feed crude protein.If the optimum crude protein level of Wenchang chickens was considered from average daily gain,75-88 days,89-102 days,103-116 days,117-131 days and 75-131 days were 13.31%,13.59%,13.02%,13.06% and 13.22%,respectively. If the optimum crude protein level of Wenchang chickens was considered from average daily intake,75-88 days,89-102 days,103-116 days,117-131 days and 75-131 days were 13.05%,13.41%,12.28%,13.06% and 13.14%, respectively. If the optimum crude protein level of Wenchang chickens was considered from feed conversion ratio, 75-88 days,89-102 days,103-116 days,117-131 days and 75-131 days were 13.61%,13.32%,13.07%, 13.23% and 13.34%,respectively. There was no significant in mainly slaughter parameters（P0.05）,but the body fatdeposition was effected. It was concluded that protein requirement of wenchang caponized chickens was 13.0%-13.5%,however,the scale of the experiment is small and further tests are needed to verify the results.
作者
刘冰冰
陆惠娴
张平
吴莲云
杨俊锦
王慧明
谢幸瑶
黄冠庆
LIU Bing-bing;LU Hui-xian;ZHANG Ping;WU Lian-yun;YANG Jun-jin;WANG Hui-ming;XIE Xing-yao;HUANG Guan-qing(Agricultural College,Guangdong Ocean University,Zhanjiang 524088,Chin)
出处
《广东农业科学》
CAS
2018年第4期151-156,共6页
Guangdong Agricultural Sciences
基金
广东海洋大学大学生创新创业训练计划项目(CXXL2017106)
关键词
文昌阉鸡
蛋白质需要
曲线估计
生产性能
屠宰性能
Wenchang caponized chickens
protein requirement
curve estimation
production performance
slaughter performance
