Do you keep them on wires or on the ground?
I have always kept my quail on the ground when possible. If I didn't have the room in an aviary, I kept them in rabbit hutches and used grass hay for bedding. Even on the aviary floor, I used some sort of litter.
Wire is hard on the pads of quail and over long term, wire will give them bumblefoot. Birds being raised for meat do ok on wire since their lives are so short. All this being said, I raise all babies on wire until 5 weeks of age which helps to prevent Coccidiosis while allowing for development of immunity, then at 5 or 6 weeks they go on floors with litter.