Vegetarians and omnivore humans are wierd. We have both types of teeth for a reason y'know. It's to be adaptable to our environment, and that includes raising animals just to eat them. Logically, it's better to raise it to eat it, then to catch/find it and eat it. Agriculture has been around forever, but we don't see people running around screaming DONT EAT THE PLANTS!! They just relate better to animals, and don't quite grasp why we are what we are. I'd prefer we just cultivate the parts we eat without raising the animal, but we're not quite there yet. :P