Is it true that when 2 dogs of different breeds (chihuahuha and pincher)mate, it will have defective pups?

Asked by Member 1040127 on Jan 16th 2013 in Puppies
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Not necessarily. Just because a dog is a mixed breed, doesn't mean they are medically defective. There are some "breeders" who are very irresponsible and breed unhealthy pups just to make money. This happens a lot when people look for specific mixes and those so-called micro dogs.

Rocky answered on 1/16/13. Helpful? Yes/Helpful: No 0 Report this answer


The reason that is a common belief is twofold...first of all, if you breed a dog with a short jaw, for example, to a dog with a longer jaw the puppies are likely to have jaws where the top is longer than the bottom which makes the teeth protrude and the tongue hang out. This is also true if you breed any dogs with opposite conformation...these can create problems with the puppies.
However, the main reason is that most people who allow this type of breeding do not do any health checks on either parent. If they were purchased for pets and did not come from health tested parents themselves or good breeding lines the puppies will most often inherit genetic problems from BOTH parents, especially if their parents are not checked.
These can be eye issues, heart issues, liver issues, etc. Many hereditary diseases in dogs are recessive which means that either parent will be fine but when bred together, the pups will have TWO recessive genes which will mean they will have the disease.

Member 641257 answered on 1/16/13. Helpful? Yes/Helpful: No 1 Report this answer