Coccidiosis (in cattle also known as Eimeriosis) is one of the most important diseases in calves and youngstock both under housing conditions and when grazing. Symptoms are generally caused by the species Eimeria zuernii and Eimeria bovis and include loss of appetite, fatigue, dehydration, and watery, sometimes bloody, diarrhoea.[4] Outbreaks are known to occur in cattle herds. The parasite can infect all animals on the farm and in some countries the parasite is present on all farms.[5] Coccidiosis affects the growth and sometimes survival of the calves and consequently affect the production and the profitability of cattle livestock production.[6]