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猪生长性状和繁殖性状是重要的经济性状,测定并评估这些性状的遗传参数,对制定选种的方法、设计选择指数、预测选种进展和提高选种效果,都有一定的现实意义。根据统计学的基本原理,种猪育种中遗传参数的估计,实际上就是计算数学模型中各影响因子的方差组分,进而利用方差组分估计遗传力、重复力、遗传相关等遗传参数。只有得到了准确的遗传参数,才能估计出准确的育种值,从而实现准确的遗
Porcine growth traits and reproductive traits are important economic traits. To determine and evaluate the genetic parameters of these traits is of practical significance in formulating selection methods, designing selection index, predicting the progress of seed selection and improving the selection effect. According to the basic principle of statistics, the estimation of genetic parameters in swine breeding is actually calculating the variance component of each influencing factor in the mathematical model, and then using the variance component to estimate the genetic parameters such as heritability, repetitive force and genetic correlation. Only get the accurate genetic parameters in order to estimate the accurate breeding value, in order to achieve accurate