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Originally Posted by amanda350 Hello! I bought a Yorkie book when I first got Tucker and it said that it was ok to breed father and daughter or mother and son but never brother and sister.. |
It is my understanding that it is actually beneficial to breed father/daughter if the daughter has the good points a breeder would like to strengthen, but only father/daughter once - never father/granddaughter, or it weakens the line. Also, that it is never good to breed mother/son or siblings.
I wonder if anyone has tested this sort of inbreeding to any great degree - I mean, what would be the point of having beautiful physical qualities if the pups can't be house broken or remember where their food dish is?