انتشار الإصابة بالطفيليات الخارجية في أسماك إحدى المزارع الخاصة في ناحية الإسكندرية، محافظة بابل، العراق.

Abstract

Collected in the period , between anuary 2015 to anuary 2016 a total of 122 fishes. From one fish farm in AL-Eskandriya distric, Babylon province. These fishes were 41 Cyprinus carpio, 38 Hypophthalmichthys molitrix and 43 Ctenopharyngodon idella. These fishes species were examined for external parasites. Parasites recorded included one species of ciliate protozoa Ichthyophthirius multifiliis, one species of ciliate periticha Trichodina domerguei, four species of monogenetic-trematodes Dactylogyrus extensus, D. elegans, D. lamellatus and D. hypophthalmichths and one species of crustacean Lernaea cyprinacea. The percentage incidence of infection with the studied protozoa varied according to different mounths.