عنوان مقاله [English]
نویسندگان [English]چکیده [English]
Present survey was performed for diagnosis of frequency of contracaecum sp. larval stage on Parishan lake. Fish capturing was done in both warm seasons (spring and summer) and cold seasons (autumn and winter) of year and captured fish was transferred to parasitology laboratory of veterinary medicine faculty of Islamic Azad University, Kazerun Branch. Totally, One hundred and seventy fish was examined including five species: Barbus luteas,Capoeta barroisi persica,Garra ruffa obtusa ,Chalcalburnus sellal andCyprinion macrostomus tenairidias . The result showed that the mean of infection in Barbus luteas was 63.11 and 2 0.91 ,in Capoeta barroisi persicawas 3.28.666 and 1.5 5.44 , in Garra ruffa obtuswas 6.833 3.368 and 2 0.732 , in Chalcolburnus sellallwas 9.52.724 and 2 0.733, in Cyprinion macrostomus tenairidiaswas 52.301 and 2.5 1.08 in hot and cold seasons respectively .Also the highest and lowest number of parasites among fish species realated Chalcalburnus sellal andGarra ruffa obtusa. Parasite frequency in all over of warm seasons was more than cold seasons.