There is no difference at all between domestic and livestock, unless you believe all animals are equal but some are more equal than others! It's just an artificial distinction by humans, this is an old nonsense argument- if we were not eating them they would not exist, if they only exist for you to eat better not to exist at all and bypass all that suffering. Sure, livestock has been artificially bred, but no animal has been cross bred more than dogs and no animal has any more right to live without suffering and not being eaten by us than any others.