Well, there is significant cognitive dissonance in my experience as a meat-eater and ostensible utilitarian. Mammals and even fish feel pain.

I don't have a problem with killing necessarily, given that (painless) death isn't objectively a bad thing. At any rate, meat livestock exist for their meat, so in the words of the Life of Brian: "You came from nothing and go back to nothing. What do you lose? Nothing!"

But, most modern meat production is not exactly kind, and the idea of what the cow went through haunts my every bite of deliciously prepared roast. No matter how amazing the roast is, it does not offset the horrible life of the cow that brought the roast into existence.

Hunting serves a valuable ecological purpose in many areas now, due to the elimination of apex predators. Thus, I think that is justified much of the time. It's also vastly less cruel than factory farming. Likewise, I think humane raising and slaughtering of lifestock like you describe is fine. I think it is important to avoid pain or fear as much as possible, however.