My wife was talking to the friend of ours that gave us our first Pigs. She was saying that she has placed older males in together and they are like the younger ones. After a couple of days they settle down. Even that is not as bad as it sounds because after a couple of energetic scuffles they tend to move away and chitter at each other. They will try and prove they are the dominant one occasionally but like I said earlier, a couple of days should have them fine with each other.

The other thing is, even Pigs born and raised together act like an old grumpy married couple. I would also recommend NEVER put three in together because the most dominant two will gang up on the third and stop it from getting food. .