> I would feel disgusted/horrified/angry.

This is the appropriate response to the thought of your species being slaughtered for food. Happily, there's no reason to assume that any other species is capable of contemplating such a thing!

They are capable of feeling pain, of course, which is a good argument against eating veal or foie gras. But it's hardly a reason to not eat any meat. If you're eating free range chickens or pasture-raised beef, it's likely that the animal you're eating lived a pretty good life and had one bad day.