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qian tan da xing zhong zhu chang he xin qun de zu jian ji ying zhu yi de wen ti
Author(s): 
Pages: 16-17
Year: Issue:  10
Journal: Henan Journal of Animal Husbandry and Veterinary Medicine

Abstract:  1 组建核心群的意义BLUP育种法(最佳线性无偏预测法)要求全群测定,测定范围越大越好,然后选择其中最优秀的个体作为种用,这样必然导致优秀种猪的后代越来越多,独立血缘数目相对减少,群体近交系数增大,选择强度降低,猪群整体水平提高困难.组建核心群,有利于优良基因的纯合同定,加快遗传进展.核心群定期转入生产群可使生产群也得到遗传改良,若干年后,猪群的整体水平能都得以提高.
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