Estimation of schistosomiosis infection Rate in the Sheep in Shiraz region, Fars province, Iran

Schistosomiosis , due to Schistosoma turkestanicum , is a very important disease. It can cause growth reduction, decrease wool product, reduce meat products and cause weight loss in sheep herds. According to the present records, this disease has spread from the north to the central parts and south of Iran. Stool samples were collected on accidental multiple trials basis from sheep herds, in different seasons of the period of study from 2011 to 2014. The samples were transferred to the laboratory and subjected to direct method and Clayton Lane method. The infection rate was totally 3 percent in the sheep. Different infection rates were observed in seven different places of Dasht Arjan. This rate was from 2 percent in Khane Zenian to 11.2 percent in Chehel Cheshmeh. The minimum number of counted eggs in 1 gram of stool was 1 egg and the maximum counted number of eggs was 6 eggs in 1 gram of stool sample. Finally, it should be noted Dashte Arjan is regarded as an infected area and other epizootic data on the presence of intermediate host, and different climatological factors should also be investigated in the future.