This is interesting....but I am so sorry Usko is subject to dealing with it.
I also wish that someone -- the USDA? Who knows... -- required licenses for all animal breeding so testing like this could be confirmed. I am convinced (and have proof) that my Mable's heart failure was a genetic issue and that heartbreak of losing a dog to a genetic heart defect could have been avoided for many.
Now that you know what it is....what can you do about it other than diet?
@Twice - I bet you have some ideas, huh?