Without this, you are reducing your chances of concentrating the genes of the linebred ancestor.

没有这种选择，你就正在降在血系内繁殖中祖先基因会。

A linebreeding may produce a puppy with magnificent qualities, but if those qualities are not present in any of the ancestors the pup has been linebred on, it may not breed true.

血系内繁殖可以生出品质小狗~~但是如果这些品质并没有在血系内繁殖小狗任何祖先身上呈现~~可能就是不准确繁殖。