So if it was a feed contaminate, why only the single horse. What was so special about his bag of feed or bale of hay? Like the e-coli lettuce, there were multiple positives. Is this particular trainer the only one that buys feed from that particular mill or distributer? Not very likely, so your excuse of contaminated feed is lacking substance. Do trainers really separate the feed by animal? Doubt it, the bales of hay are in that corner, the feed is on the skids and the animals are fed. So contamination should occur in the whole herd of animals and not just a single horse. On top of that, there should other barns affected with the same problem. Has not happened,and if there was a serious contamination, and the fashion in which the USDA tracks things today, they should be able to find this mysterious source of contamination in the feed. They can pinpoint "e-coli" to the field of shipment, but can't find the problems in some feed? Give your head a shake if you believe that contaminated feed was purchased. All owners have one thing in mind, they all pay lip-service to running on hay, water and oats. But once the doors are closed they always ask where to buy some.