Penguin don't ever feel bad for the pig, they are a nuisance animal in Texas. They do 17,000,000 in damamges to farms and ranches every year. They have no natural predators, and breed like roaches. They have over populated the south and are costing farmers and ranches millions every year. Texas actually passed a law that you can hunt them from helicopters. The only way to stop this is to kill them. A standard domesticated pig will revert to ferrel in less than 7 days if left on it's own accord, in the wild. That is faster than any other domesticated animal. Texas spends millions of dollars every year in erradication of ferrel hogs and sows.
Also there is no way that left to standard breeding that any herd of cattle could keep up with the consumtion of good hearted meat eaters. Simple fix for you, if you don't want to eat beef, don't, if you feel sorry for the poor fish ripped from his habitat in the water, don't eat it. If you feel sorry for the pig that has torn up thousands of miles of fence, and farm don't eat it, but do not stand to tell me and mine, or the other meat eaters, that it is wrong for us to eat an animal that was put on this earth for us to eat. If you just have a thing about beef move to India where it is illegal to eat beef cau it is their dead ancestors.
On a side note I do agree with Vulcan