From what I understand deep bedding from hemp ends up having its own microorganisms that break down the bad things like coccidiosis. That's why you're not supposed to use the deciduous earth inside deep bedding. It actually does not allow the good microorganisms to live and take care of the bad...
I get Dominion hemp from my local feed store at a really good price. If you're in a state that has hemp farms, you could probably get it at your feed store from your local hemp farm.
I have been using hemp bedding in my pigeon loft all winter. It has been phenomenal! First it is so nice and insulating. Second dust free. Third- highly absorbent. I had the problem of other beddings blowing around and leaving bald spots on the floor when they flapped their wings. This is...