马冈鹅胚胎生长曲线拟合与比较分析

摘要

The growth curves of the embryo weight and the embryo length of Magang geese were analyzed and fitted with three kinds of nonlinear models (Logistic, Gompertz and von Bertalanffy). The results showed that the growth curves were appropriately fitted with three models, the indices of fitness(R2) of the three models were up to 0. 99 above, but the von Bertalanffy model had the best effect on fitting with the growth curve of the embryo weight (R2 =0. 995) , and the Gompertz model had the best effect on fitting with the growth curves of the embryo length (R2 = 1. 000). This paper would provide references to understand the embryo growth laws of Magang geese.%运用Logistic、Gompertz和von Bertalanffy 3种非线性模型分别对马冈鹅的胚重和胚长进行了曲线拟合和分析.结果表明,3种模型均能较好地拟合马冈鹅胚胎的生长曲线,拟合度(R2)均高于0.99,其中以von Bertallanffy模型拟合胚重的效果最好,Gompertz模型拟合胚长的效果最好(拟合度分别为0.995和1.000).本研究结果为及时了解马冈鹅胚胎时期的生长发育规律提供了参考依据.