摘要
本文应用三种非线性生长模型对公、母猪生长曲线进行拟合,估测生长参数。结果表明,杜长大阉公猪日增重、料肉比极显著优于母猪;背膘厚则母猪略薄于阉公猪(P>0.05)。三种生长模型中以Gompertz模型的拟合度最高,公、母猪拟合度分别为0.9990和0.9984。
Three kinds of non-linear regression model, Logistic, Von Bertalanffy and Gompertz were used to fit the growth curves of Duroc×Landrace×Yorkshire. The results indicate that daily gain, meat / ratio of feed are obviously higher in males than in females(P>0.05). The Gompertz model is the best one in the three non-linear regression models and it's goodness of fit are 0.9990 and 0.9984 in males and females respectively.
出处
《家畜生态学报》
2005年第2期49-50,共2页
Journal of Domestic Animal Ecology
基金
福建省教育厅资助项目(JA02199)
