Why can you not breed a male dog back to his daughter?

Answer 1

Most responsible breeders do not breed the bitch in the first estrous cycle (heat), although it is possible for them to become pregnant during that first season. Until a dog is around two years old, many genetic problems will not have shown up yet, like hip dysplasia, for example. You would need to wait to see that the bitch is healthy (e.g., that her hips are good when she fully matures), or have the proper testing done on the dogs to be mated to assure that you are not going to end up with a litter of puppies with potentially serious genetic disorders or conditions.

Females are able to conceive ("go into heat") only approximately every six to eight months. They usually have their first estrous ("season") at around six months, but some don't for as long as 14 months. As a rule of thumb, if she has not had an estrous cycle by the time she is 14 months old, you should have her examined by a veterinarian.

The decision to breed should be made with great care and only after you have learned much more about breeding, whelping, and caring for pregnant bitches and newborn puppies. In addition, before breeding, determine that the puppies will be wanted and will have good homes. A commitment to find good homes for all the new lives you will be creating must be made before even considering breeding any dogs.

Answer 2

It all depends on both dog's genes. You may end up with perfectly normal pups, but because the parents will be so closely related, there is an increased chance of ending up with congenital defects in the pups as a result of inbreeding. It is not a chance any responsible breeder would take, as the health of any pups would be the most important consideration.

A father-daughter (or mother-son or full sibling) mating would be risky, at best. The more closely related the parents, the greater the chance of their offspring suffering from an inherited disorder. This is because when animals are related to each other they are far more likely to be carrying the same defective genes. When these defective genes pair up in the offspring, inherited diseases occur. Inherited diseases can cause significant suffering and reduce quality of life for the offspring.

Other, more long-term effects of inbreeding can include a decrease in genetic variation, which in turn causes an increase in the prevalence of inherited disorders, increased mortality rate and increased infertility, for example.

Answer 3

No. The bloodline is too close. It creates all kinds of problems. Death in puppies, malformations, mental problems, etc.