I was in Bandung in Indonesia earlier this year. We visited one of these places not realising what it was. The visitor centre had a bunch of cages which weren’t small but I wouldn’t say large enough for the size of the animal. We asked if we can see the actual farm. He said it was the largest farm so we asked to see it. Nope, not allowed.

They’re also on a strict diet. I wouldn’t be surprised if the ones not on display are force fed.