I am participating to some more cruel killings of pigs, cows and whatever they sale in the grocery stores nowadays so I should feel even more pity for animals
I think it's not the killing that's the worst, I think it's the mere fact that we're "farming" animals in cages, with no other purpose than eating them that is the worst.
Sometimes I'm considering eating only sheep, whales, reindeer and other animals that I may believe have had a happy life prior to slaughter.
That's also a point of view that I heard on a TV show once. That the animals should at least live a happy life before being slaughtered. I was fine with not eating meat for years and I think I will gradually reduce it to zero.