Hi my name is Holly, I have a bunny who is 21 weeks just and he has just been neutured 2 days ago, he has been checked by the vets as they are very happy with how he is and they have discharged him as he's very healthy and they say he is healing well and can continue to do normal exercise if he wants, his name is Harvey, so im wondering how long after neutering can I start putting sawdust back into his hutch? Like his normal bedding?