linebreeding

This has led some breed clubs to discourage the use of linebreeding or inbreeding in an attempt to maintain gene pool diversity.

因此，这足以证明受欢迎公犬对其种延续有着潜移默化影响。

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.

血系内以生出超群小狗~~但是如果这并没有在血系内小狗任何祖先身上呈现~~能就是不准确。