''Eimeria praecox'' affects chcikens. The oocysts are colourless, and around 20μm in length. The endogenous stages occur in the villi. There are usually three stages of merogony, but there may be more. Then both sexual and asexual development occurs, and may be seen together. | ''Eimeria praecox'' affects chcikens. The oocysts are colourless, and around 20μm in length. The endogenous stages occur in the villi. There are usually three stages of merogony, but there may be more. Then both sexual and asexual development occurs, and may be seen together. |