I might be wrong, but i think they are a lot more strict about contamination of pet foods with E. coli and Salmonella. I think it is zero tolerance, and they are quicker to recall these days especially after the outbreak of contaminated pet food a few years ago. That being said, I don't think feeding a raw diet puts any more risk of contraction than feeding commercial dry food, considering that we could contract E. Coli from coming in contact with our dog's poop (no matter what they eat) and our chicken's poop. And the way I see it it's no more risky to feed dogs a raw diet when we handle raw meats to cook for ourselves. As long as everything is handled properly and cleaned. I do feed my dogs raw eggs, but they are so high energy/high maintenance that I doubt I could keep up with their nutritional needs on a raw diet, at least without it costing me a fortune. -which brings me back to wanting to raise meat chickens. But anyways lol just my two cents. 
