内蒙古白绒山羊产羔数分析中不同模型的比较

Comparison of Different Models in Analysis of Litter Size of Inner Mongolia Cashmere Goats

应用Gibbs抽样法,比较了内蒙古白绒山羊产羔数在两种不同模型(阈模型和线性模型)下方差组分估计的差异,分别计算了两种模型的预测值与表型值的相关系数。结果表明,在估计内蒙古白绒山羊产羔数的方差组分时,线性模型(ρ=0.093)的预测准确性比阈模型(ρ=0.062)的预测准确性略高。

The Gibbs sampling method was used to compare the components variation of litter size of Inner Mongolian Cashmere goats under two different models （the threshold model and linear model）. The correlation coefficient of predictive and phenotype values were calculated. The results showed that accuracy of the forecast of linear model （p=0.093） was slightly higher than that of the threshold model （p=0.062） in the estimate variance components of litter size of the Inner Mongolia Cashmere goats.