Abstract:
Digenetic trematodes are endoparasite of several kinds of economically important animals. This may cause of various significant pathological and parasitic diseases. Hence, this study aims to investigate the prevalence of cercarial infection of agricultural area in Chainat province. For the cercarial examination, all 1,315 snail specimens were examined under light microscope using crushing method. Five types of cercarial stage were discovered including,cercariae, echinostome cercaria, furcocercous cercaria, megalurous cercaria andparapleurocercous cercaria with prevalence of 4.48 percent totally. Furthermore, Subpraya district was indicated the highest prevalence of cercarial infections as 14.81 percent. Regarding the dominant species of infected snail is Melanoidestuberculata, which its prevalence of 62.85 percent. These result data can be demonstrated the epidemiological situation of cercarial infection in Chainat province for planning the effective control, monitor, and prevent procedure.