Pack Goat Central

My goats seem to get coccidii every winter. Small wet enclosure. Can you recommend a treatment for this? I could go to my vet with a sample, but I know what she will say. They are getting pleanty to eat, but are thin.

I have treated with liquid sulmet, with good results in the past. However, my boys were still being bottle fed, so we just added it to their bottles.