My rabbit was neutered Friday, he has been inside being kept warmer like the vet advised for 48 hours, tomorrow im going to put him back in his hutch. Do I keep him in the hutch or can I let him runaround in his attached run too? He also is litter trained, do I still just keep putting shredded paper in their or can I now put megazorb back in? and how long before you can start putting the hay back in? bit unsure??