So let me get this straight. You think that humanely killing animals to give people the nutrients they need is wrong? Animals are not equal to us, we have earned our position of top dog on this planet through millenniums of fighting tooth and nail for it and we came out on top. If these animals didn't want to end up being our food, then maybe they should have tried to become the dominant species on the planet. Besides, do you think that if cattle weren't slaughtered then there'd be cows roaming the green meadows singing as they went about their merry way? Bollocks. These animals are bred to be killed. I assume that from your statement that this is your problem, ending an innocent animals life, then would you rather they were never born at all?