I know this is a bit of a streach, but I remeber a few years ago when CWD was big in England they traced the cause back to the feed the cattle were on. They were being fed mineral supplements made from the bones of cattle. I belive the practice has been halted as some of the bones may have been infected with CWD. Here is the streach, with more and more hunters trying to ensure trophy racks they are putting out minerals. What are the chances that these supplements may also be to blame? You would think that our beef industry would also have CWD because some folks use regular cattle mineral for deer. So it maybe that the bags of supplement made for deer and elk may have been made from the bones of diseased deer and/or elk. What does the DOT do with road kill they pick up? Rendering plants? What do wild game ranches do with carcasses? Rendering plants? Does the USDA regulate where the calcium comes from in domestic animal supplements? Do they regulate where calcium comes from in deer and elk supplements?
Again, as I recall, the story from England was it took several generations of cattle eating infected supplements with each generation concentrating the virus in its marrow and then their bones being ground into calcium for the next generation to eat and on and on before a steer/cow could actually contract the disease from the supplement. So lets say wild game ranch "A" has some animals that die from "something" or are harvested. They want to save some money so they grind up the bones and feed them back to thier stock and keep doing that, eventually the disease will consume their whole herd and they wonder how it started. If the USDA regulates that no wild game parts can be used in domestic supplements but its OK to use them in wild game supplements, wild game ranch "B" sells its bones a company that makes wild game supplements maybe thats where it came from.
I know its way out there, but you never know....and I am in no way trying to condem wild animal ranches.
The 'Bonker