Minimum size for a female is about 5 lbs. Even at 5 lbs though, a female may still be too small for breeding if she has a small bone structure. And unless she is a good representation of the breed standard, most reputable breeders would not breed her regardless of size. For a male, the size is much smaller. You would want to breed a smaller male with a larger female. Even a small male should not be bred if he is a "runt" of a litter and has larger parents. And the standard for either yorkie is up to 7 lbs. So, I wouldn't breed one larger. The above is just a generalization and one of the reputable breeders on here could help you more. |