动物亲缘系数及近交系数的亲缘协方差算法

本文对亲缘协方差的来源及相关公式了进行了系统推导，并概括了应用亲缘协方差公式 计算动物亲缘系数及近交系数的规则。文章提示亲缘方差法的基础仍在于莱特的通径亲缘系数法。本法的优势在于能对种群的个体进行化的操作运算、简捷、快速、准确，并特别适合于利用计算机求解。但莱特的通径系数法则适于针对种群中的辊个体进行计算。故三种方法各有其适用的场合，应分别情况灵活加以把握和应用。

Computation of Relationship and Inbreeding Coefficient through Numerator Relationship for Animal

In this article,origins of numerator relationship has been proved and the cor- relative calculation formula deduced.And the rules,which are used to calculate the coeffi- cient of relationship and inbreeding through numerator relationship for animal,has been sum- marized in it.The article revealed that the numerator relationship which has advantage in stimulating and computing the individuals of the population in whole,is yetbased on Wrights path coefficient method.This method,thatis the numerator relationship,is simple,quick ac- curate and especially fitto utilize computer,while Wright s method agrees with caculating the defined one of the population.So each method has ists own suitable occations.And they should be grasped and applied resourcefully in different conditions.