Originally Posted by InStyle
Prancing hancock was in there twice on the mares side, as great grandfathers, I wouldn't technically class the horse inbred, in the dog world it would be line breeding BUT line breeding really is a nice word so the public doesnt think of drooling idiots be it horses or dogs lol. If there is ANY relation its inbred. But if I remember the research correctly, it takes 37 generations before you will get any kind of deformities, (again this is dogs). BUT that's not to say that there wont be genetic diseases that crop up. If you cross a mother to son, and they are both carriers, higher chances of the resulting offspring having the issue. You are doubling upi the good and the bad. Make sense?
Ah, did not see him twice. Well in this case, no, your horse isn't really "inbred". My mare has Doc O'lena on both her sire and dams side. Meaning she has Doc Bar and Poco Lena on both sides. I mean, it wouldn't be smart to inbred a mother and son if they both were carriers for a genetic disease. Mostly it is done if they both have what an owner wants. Conformation and so forth, by breeding them together would bring out the better qualities. That is why when shopping for a stud, you go for what he has that your mare doesn. Vise versa, does your mare have what he doesn't?
Again, not sure what is going on in your horses pedigree.