Why would you want to use him for breeding? You best get him neutered and enjoy him as a pet. My second yorkie came from a hobby breeder and it was a disaster for 121/2 years genetic IBD. The ones that show to better the breed and care about the breed are the people to look at if you are buying a yorkie. Please neuter your yorkie don’t pass on any genetic defects leave it to our wonderful breeders. Susan |