Depends if she is running a full fledge kennel or a puppy mill. A puppy mill is where you wear down your females to a pulp. A good breeding kennel has several breeding couples and only allow them to breed perhaps once a year. The breeder that Maggie came from has several pair of breeding stock. I have been to her facility and seen how well her parents are. Never has one of her Yorkies been over bred. Check her out
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