It is inbreeding. Serious health issues can arise. If the mother even carries them to full term, they usually die shortly after birth. My father in law has brother and sister beagles in the same kennel. I don't have a clue why, but he hasn't had them neutered or fixed, so they have had a few litters. Most of the time, none of them live, but one did and still is living and the only thing wrong with him is that he has a major underbite. |