And this is a video confirmation : http://www.youtube.com/watch?v=nSp7Ew32WJs
- Supporter in 2019
By using those chews, I avoid giving them wood that has been treated with chemicals or that could be harmful to them. I just got my little one over a bowel infection that nearly killed him, so I don't want to give him anything that I'm doubtful of. One thing to remember is that you have to change those chews whenever they get worn out. It's also good to move them around when replacing them to give the piggies a change of pace.
Also, I would never encourage a guinea pig to eat cardboard. Hamsters and gerbils enjoy chewing up cardboard tubes but they generally do not eat it. They just fluff it into mounds of bedding. Guinea pigs are different. A lot of times if they are chewing something up, they are also ingesting it and cardboard is not part of a pig's proper diet. It may cause malnutrition or a bowel blockage.
My concern is if it’s okay for pigs to eat the bark. Mine chews for a little while and eats some of the bark. Once the wood is rough I remove it. Can they get splinters in their teeth or gums?