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为及时了解吉林地方黑鸡的生长发育规律,笔者运用Logistic、Gompertz、Bertalanffy三种非线性模型对0~16周龄吉林地方黑鸡的生长发育情况进行曲线拟合和分析。结果表明:三种模型均能较好地模拟吉林地方黑鸡的生长曲线,对体重的拟合度均在0.994以上,其中以Gompertz模型的拟合效果最好(公、母鸡拟合度分别为0.996 4和0.997 3)。说明运用Logistic、Gompertz、Bertalanffy三种模型对吉林地方黑鸡进行生长曲线的拟合和分析可行,其中Gompertz模型拟合效果最佳。
In order to keep abreast of the law of growth and development of black chickens in Jilin, the authors use the three non-linear models of Logistic, Gompertz and Bertalanffy to curve fit and analyze the growth and development of black chickens in Jilin from 0 to 16 weeks old. The results showed that all the three models could well simulate the growth curve of black chickens in Jilin and the fitness to body weight was above 0.994. The fitting effect of Gompertz model was the best 0.996 4 and 0.997 3). It shows that the Logistic, Gompertz and Bertalanffy models can fit and analyze the growth curve of Jilin local black chicken. The Gompertz model has the best fitting effect.