Comparison on growth curve fitting of three crossbreed geese and its application

By using three kinds of nonlinear model of Logistic,Gompertz and Bertallanffy,three crossbreed geese(LYLYB,LYB,and LLYB) were fitted and comparatively analysed in terms of body weight and size of growth.The results showed that fitness of the three models were all above 0.99,and could well fit the process of growth.According to the results,the fitness of Logistic model was the highest.Consequently,Logistic model is the optimal model based on the actaul feeding data.To estimate the maximum data of the body weight and the size of growth in the light of the Logistic model,the growth rate of LLYB geese was the fastest,and the growth in weight and size was faster than that in the other two geese.