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Gina, Breeder and Health Care Specialist
Category: Dog
Satisfied Customers: 5880
Experience:  20+ years experience in animal health care. Hobby breeder of Olde English Mastiffs and owned by an English Bulldog.
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What are the main problems that occur with incest in dogs

Resolved Question:

We took in a dog who was most likely impregnated by her brother and would like to know what problems the puppies may or may not have had? Taking the vets advice, we already had the dog spaied so the puppies will not be born, but i am looking for confirnation that that was a good move.   Would the puppies really have been crazy?
Submitted: 10 years ago.
Category: Dog
Expert:  Gina replied 10 years ago.

Thank you for taking that precaution. Here is how it works with dogs :) When close relations are bred together...inbreeding or close are doubling the genetics...the good and the bad. So, unless there was a temperment problem with the parents, they would not be "crazy". The hard part is it also doubles the hidden recessive genes...the ones you don't see on the surface, but are in the bloodlines. The best way to explain is...lets say...both of them have beautiful temperament, but are both short for their breed..then the pups will have great temperaments but will be really short. Make sense. But you did the right thing as you don't know what the hidden genes contained. Hope this helps :)

Customer: replied 10 years ago.
By hidden genes, does this mean traits that could be present in our dogs parents but not necessarily present in her or her brother? Thanks!
Expert:  Gina replied 10 years ago.
Pretty much...when you breed you look at the parents and grandparent traits as well as the parents. :) That way you have as much info as possible when deciding to breed two dogs together. :)
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