This is more of a question out of curiosity, but I recently ran across an ad for a mare who is H/H for HYPP. They are asking $5000 for this mare, and she is bred to a stallion at their farm and he is N/N. So in other words, all of this mare's foals to this stallion will be carriers of HYPP, and will have a possibility of being affected by the disease as well. I just don't see how this is responsible breeding. The farm seems to be fairly reputable too and there was very little concern in the responses to the ad about her H/H HYPP status. Is it just me, or am I the only one who feels this way? Why breed an animal that has a very good (well, about 100% in this case) likelihood of passing a genetic condition down to her offspring? Even if an animal was the most gorgeous thing in the world, I don't think I would want to breed him/her because of the homozygous condition.