By the time any of the fore mentioned symptoms are visible a lot of damage has occurred. It is very important to consult a veterinarian for proper diagnosis. Many of the symptoms that result from parasites are the same symptoms of many other diseases. Coccidiosis is somewhat different from most parasites because infection is direct from an egg-like stage called an oocyst. It is also picked up during grazing or in the barn.
Coccidiosis is a major cause of poor feed efficiency and poor growth.
The parasite is normally present in all ages of sheep, but affects younger animals the most. It often shows clinical symptoms when the animals have been stressed in some way, including changes in the weather. These are just a few questions that you may be asking. The highest number of larvae are present in the pasture when the climate is most suitable for survival. If the weather has been warm and damp, the larvae numbers are gong to be high.