3种水貂资源群体生长曲线的拟合和比较

Comparative study and fitting of growth curves in three mink resource populations

为研究明华黑色水貂、金州黑色标准水貂、咖啡色水貂的生长发育规律,使用Logistic和Gompertz两种模型对体重数据进行了拟合分析。结果表明:Gompertz模型的拟合度最高,拟合结果最接近观测值。咖啡色水貂生长最快,公貂最慢为明华黑色水貂,母貂最慢为金州黑色标准水貂。

To reveal the growth rules of three mink breeds of MingHua black mink, JinZhou black mink and Pastel mink, the growth curvesand populations body weights were analyzed and simulated by two types of nonlinear models（Logistic and Gompertz）. The results showedthat Gompertz model inferred better for achieving the real observations. The growth curves indicated that Pastel mink had the fastest growthrates, MingHua black mink had the slowest growth rates in the male, and JinZhou black mink had the slowest growth rates in the female.