I can only speak for myself, but I find it more ethically responsible to know first hand that the animals I eat were bred to grow at a normal rate with ability to live normally, had grass and pasture to move and run in, sunshine, clean water to swim in, and good food to eat than it is to buy supermarket sale cuts and eggs from birds raised in teeny cages bred to be to heavy to walk.
When the tainted ground turkey hit the news I wasn't bothered so much that factory practices caused people to waste food they bought, I was enraged that those turkeys no doubt lived miserable lives inside a stinky poorly ventilated little cage inside a tin building --- for NOTHING!!
It shouldn't be any easier to end a life you never saw before you cut it out of the vacuum pack and rub it with seasonings, but it is, and I think that is really sad.
Of course if you are a vegetarian by moral choice, I respect your beliefs, but I can't eat that way (not won't, can't. I've tried cutting animal protein for entire days before and my body went into starvation mode.) The best I can do is raise my own.
I just got the thread going to gauge others' experience so I might have an idea what emotional obstacles I might face, but you know, based on others' experience, I think that my attitude towards death in general (and how it happens when you have livestock, even naturally) I'll be able to handle it.