After years of breeding only American bloodlines, I had to face up to some hard facts: we have a lot of genetic health problems in the breed and, more importantly, we had very few breeders formally testing their stock for either their health or inheritabl
After years of breeding only American bloodlines, I had to face up to some hard facts: we have a lot of genetic health problems in the breed and, more importantly, we had very few breeders formally testing their stock for either their health or inheritabl
在只繁育美国血统的数年后，我必须面对一些困难的事实：我们在繁育里有许多遗传问题，而且更重要的是，我们只有非常非常少的繁育者正式测试过他们犬只的血统，或是它们的健康，或是他们内在的工作能力。