Coccidia is a protozoan parasite that will cause loose or bloody stools and unthriftiness. It can be diagnosed easily with a fecal exam. It will usually affect juvenile animals as adults can develop immunity against the parasite.
Treatment with Corid is the easiest way to control this parasite.
These are microscopic internal parasites. Several other protozoans such as sarocysts and toxoplasmosis, have been reported, but appear of little overall importance.