Improver appears several times in that pedigree, the gift that just keeps on giving.
I haven't been able to figure out how common this deformity is and how much the industry as a whole cares, or even knows about it for that matter. I just don't hear many breeders talking about it. Personally, I don't want any part of it. I shipped a pretty good bull that sired deformed calves for a friend of mine that used him. I had a real good bull purchased this winter, but had to put a stop to the deal when his DS test came back positive. I haven't had a DS calf, knock on wood, but maybe I've been lucky since I have very little Improver in my cow herd. Myabe I should just shut my eyes and not worry about it if the deformity just doesn't happen that much.