摘要
选艾维茵肉鸡雏２００只，于初生和１～７周龄的周末，分性别各解剖８只鸡，测量内脏器官（心、肝、脾、肺、气管、肾、胰和消化道）重量及消化道长度，并进行与体重变化的回归分析。结果：内脏器官重和消化道长度随体重同步变化。约在５周龄时内脏器官重超过饲养阶段的平均数。内脏器官变化与体重增长的直线回归、消化道长度与体重变化的幂回归或对数回归的决定系数（Ｒ２）最高。
AVAIN cs broilers were fed as usual and used to studies growth regularities of the internals organs,They were anatomized at birth and the weekends of 1～7 weeks old respectively,and every term was divided into two groups.male and female,n=8.The weights of the internals organs (heart,liver,spleen,lung.trachea,kidney,parcreas) and digestive and lengths of the digestive tracts were measured.In addition,regression coefficients between the weights of the internals organs and the changes of the body weights were analysed.Results showed:the changes of weights of the interals organs and the lengths of the digestive tracts wete coincided with that of the body weights.The weights of the internals organs at 5 weeks old were over the average of the feeding term.The coefficients of determination(R 2)of lirear regressinos between the changes of the internals organs and the growths of the body weights,and power regressions or logarithmic regressions between the lengths of the digestive tracts and the growth of the body weights were highest.
出处
《中国家禽》
北大核心
1998年第6期10-12,共3页
China Poultry
关键词
肉鸡
内脏器官
生长规律
回归分析
broiler
internals organs
gowth law
regression analysis
