Therefore, both protection of the diversity of natural grass carp resource and selection of homozygous traits with desired economic genotypes are very important aspects for grass carp breeding.

• 因此，加强对自然水体中草鱼种质资源多样性的保护和利用各种现代生物学技术纯化、筛选和组合优良性状基因，是草鱼遗传育种中同样重要和不可或缺的两个方面。