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Jane Lefler
Jane Lefler, Breeder,Behaviorist, formerVet Asst
Category: Dog
Satisfied Customers: 18802
Experience:  Former vol Vet Assistant.Breeder 18+ years Dog trainer / behaviorist
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What is your view on inbreeding and aggression Does ...

Resolved Question:

What is your view on inbreeding and aggression? Does inbreeding increase the level of aggression in a dog? Breeding dogs with the same dam. I have a dog from a certain breeder who has lately had a number of dogs, she sold previously, bite people. The dogs she is breeding aren't agressive could it be coming from a gene further back?
Submitted: 9 years ago.
Category: Dog
Expert:  Jane Lefler replied 9 years ago.

Inbreeding doesn't specifically cause aggression but it can produce dogs with unstable temperment. A dog with an unstable temperment is more likely to bite either from aggression or fear. You need to understand a bit about genetics to understand why inbreeding can cause problems that are not evident in the parents. Recessive traits require that it be inherited from both parents. Other dominant traits only require that one parent pass the gene down. What happens with inbreeding is that you are doubling up on the genes carried by the common ancestor which may be a tendency toward aggression. However, the aggression could also be triggered by a lack of socialization of the puppies at a young age as well. If she did have a dog that showed aggressive tendencies and then bred him or his offspring to another offspring, this breeding would likely produce dogs with a tendency to be aggressive.

I hope this information is helpful to you.
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