纯繁，在本品种内配种选育。保存和改良家畜品种的重要方法，适用于具有较满意的生产力或良好的杂交效果的品种（如黑白花奶牛），或具有某些独特优点的品种（如太湖猪的高产仔性能）。
纯繁与杂交 pure breeding and hybrid
纯种繁殖 pure breeding ; italian greyhound
保纯繁殖程序 purification and reproduction procedure
纯种繁育 pure propagation ; pure breeding
纯系繁育 [遗] [遗] pure breeding
纯品种繁育 pure variety breeding
供繁殖用纯种牛 pure-bred bovine for breeding
供繁殖用纯种野牛 pure-bred buffalo for breeding
繁殖纯种 breeding true
纯酵母繁殖罐 pure yeast propagator
为缓解这一矛盾，各地纷纷采用MOET技术对波尔山羊纯繁扩群，并取得了较好的效果。
MOET technique is carried to improve pure breeding and to enlarge quantity of Boer goats in order to eliminate the paradox, furthermore, good effort in the practice has been obtained.
种质资源是杂优猪选育的基础，育种部分是杂优猪选育的核心，完成专门化品系的选育、配合力测定和最优杂交模式的筛选以及专门化品系的纯繁扩群；
The genetic resource is the base of the breeding of hybrid swine, breeding section is the core, in which completes the breeding of special strains, combining ability testing .
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