黑羽与黄、白羽鹌鹑杂交后代生长曲线的拟合

Analysis of growth curves of the filial generation of black and yellow/white quails

运用Logistic、Gompertz、Bertalanffy和Brody等4种非线性拟合模型对黑羽母鹌鹑与黄羽、白羽公鹌鹑2组杂交后代0～10周龄的体质量生长数据进行曲线拟合与分析。结果显示,4种模型均能较好的拟合其生长曲线,但Gompertz模型对于2个试验组的拟合度均达到0.997 0以上,残差平方和(E)均较低,拐点周龄的拟合值分别为3.030 4周和3.206 4周,拐点体质量的拟合值分别为59.480 9g和54.213 6g,均最接近实际值,故Gompertz模型为最适宜描述2组杂交后代生长曲线的模型。

The growth curve of the filial generation of black and yellow/white quails from 0 to 10 weeks was fitted with Logistic,Gompertz,Bertalanffy and Brody and Richard four nonlinear mod- els. The result indicated that the four models were all very useful. Gompertz model fitting effet was very good for two groups,which squares （E）. The critical age were fo weight were fond to be 59. 480 9 g a serible the growth curve of the filial had the higher R2 （above 0. 997） ,the lower residual sum of nd to be 3. 030 4 weeks and 3. 206 4 weeks,the critical body nd 54. 213 6 g. So Gompertz model is the best model to de- generation of black and yellow/white quails.