There's a rendering plant down south of me. Baker Commodities. They have sub-contractors that go to the vet clinics and pick up the euthanized animals. They have huge semis that travel down the freeway with euth'd cows and horses in the back, I've seen the loads, not enclosed trailers but the open topped "junk" haulers. I can't even begin to tell you how close I came to puking in my car when I saw the horse and cow hooves sticking up. They have huge tankers that travel to the restaurants to pick up the "used up" or "out of date" frying oils. There are pics if you care to search for them of dogs and cats in 50 gallon drums waiting to be thrown in the rendering vat. Sometimes they don't even bother taking them out of the bags the vet stores them in. They are rendered at about 190 degrees, not hot enough to destroy the pento or any other drug they may have been on. Can you imagine the amount it takes to euth a 1000# horse? A 60# dog takes about 10cc of pento(please correct me if I'm wrong anyone!) so I guess conservatively it would be about 20 times that for a horse. I don't know about you but that's very disturbing to me........ that's a lot of that drug floating around in those foods. I don't even want to go into the pain killers and anti-inflammatories a lot of those horses were on prior to euthing........as a general rule. We plan on burying the horses in the lower acres..........we've already started a pet cematary down there.........no way my babies will be fed to anyone but the earth.