【摘要】 为了解崇仁麻鸡肉用品系的生长发育规律,运用Logistic、Gompertz和Bertalanffy3种非线性模型分别对崇仁麻鸡肉用品系公、母鸡0~12周龄体重生长数据进行曲线拟合和分析。结果表明:3种模型均能很好地模拟崇仁麻鸡肉用品系公、母鸡的生长曲线,但Gompertz模型和Bertalanffy拟合效果更佳;进一步分析模型拟合参数和理论值与实测值,认为公鸡以Bertallanffy模型拟合较好,拐点周龄为8.272周,拐点体重为1025.668g;母鸡以Gompertz模型拟合较好,拐点周龄为6.188周,拐点体重为619.991g。3种模型估计的公鸡拐点体重、最大周增重均高于母鸡,拐点周龄均晚于母鸡。更多还原

【Abstract】 To study the growth-development laws,growth curves of meat-type Chongren chickens were fitted and analyzed using Logistic,Gompertz and Bertalanffy nonlinear models. The results showed that these models could fit well growth curves of both male and female chickens,and models of Gompertz and Bertalanffy fit better. Through analyzing fitting parameters,expected value and measured value,Bertallanffy model fits better in cocks and growth inflexion point is 8.272 week,body weight inflexion point is 1 025.668 g,and Gompertz model fits better in hens and growth inflexion point is 6.188 week,body weight inflexion point is 619.991 g. The inflexion point of body weight and maximum week-weight estimated by these models in cocks are higher than that in hens,while week inflexion in cocks are later than that in hens.更多还原