Hmm thats a good point. I got an email from oxbow today as i emailed them askin them about garlic in veggie treats and mentioned that oats can cause bloat and they said that they havnt heard about oats causing bloat. So i wanted to make sure i knew stuff about oats and bloat, just so i could let them know.
Oats are heating which is why they can cause bloat, I too do not feed them. The person Piggyfan refers to has seen pigs at the clinic who were suffering from bloat after being fed oats and regularly deals with owners over the phone who have been referred to her by the vets she runs the clinic at.
If I want to help pigs put weight on I give them critical care and they can occasionally have a very small pinch of bran.
i remember asking my exotics vet about this a while back. he said he's heard that people use them to try and bulk up a piggy who has lost weight, but he wouldn't recommend this as you can potentially cause more stomach issues, and it's better for them to gain weight slowly over time, especially after illness. but apart from the weight side, they're not a good choice for piggies anyway. so i would never feed them personally.