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.
