Ectoparasite on juvenile Pangasius sutchi in pond culture

Abstract

An ectoparasitise diagnostic study on juveniles of Pangasius sutchi was conducted. About 50 juveniles of Pangasius sutchi were caught from Manir, Kuala Terengganu for this study. Two species of ectoparasites were found on juveniles of Pangasius sutchi. There is protozoan ciliates and one species of monogenea The ciliated protozoan Trichodina spp. was mainly found on skin the and several in on the gills with mean intensity of 20.4. The monogenean Silurodiscoides simensis was mainly found in the gills with mean intensity of 23.7. The prevalence of trichodinid and monogenean infection of the juveniles were 100%. All juveniles were infected and this could probably be due to stress and over crowding.