I am dealing with a coccidiosis outbreak that I think I have under control now. In that past I have just thrown scratch or treats around the run, and I can't think of another way to do it. Even if I put treats on a "clean" surface they will just grab a piece and run around with their trophy until they find the perfect place to eat it. After getting it covered in dirt of course. I have read to not feed them off the ground to prevent things like coccidiosis, but that doesn't seem possible, or at least beneficial with chickens being chickens???