You know why buffalo don't roam the great plains any more? Farming. 

But please tell me how raising an animal and killing it for food is more noble than hunting a wild free range animal. Farmed animals suffer way more indignities than wild animals do. From debeaking, to separation from their parents, to castration, to artificial insemination, forced to live in tiny stalls, forced to stand around in feces, injected with steroids, forced to give more milk than nature intended, and on and on. What lovely lives farm animals spend.