Probably some of the healthiest cows you'll ever eat. No one has chocked them full of chemicals or horomones and they eat what their body needs.These are eating whatever they can find. I feel bad for them but when someone hits one with a car you can rest assured the people who own them will not claim them. Idk about the feed other than they usually put them up for a few weeks before slaughter. Its something people have done for as long as I can remember.