some breeders have injected their inbred yorkie lines with silky blood to revive and try to clean some of the damage that inbred for smaller had done to their lines, I had to have my male and female DNA tested before even did the health tests on them just to make sure they were Silky and not silkshires.I find the practice very unprofessional, but I guess that if you breed purely for money, they do whatever is needed. is US the customer who has the responsability of asking the right questions and protect our pups..
and lines...