Diseases caused by helminthes in cultured Oreochromis niloticus and Clarias gariepinus, in ismailia province

Eissa IAM; Mona M Ismail; Doaa GM Saleh; Rehab A Qorany

Diseases caused by helminthes in cultured Oreochromis niloticus and Clarias gariepinus, in ismailia province

Authors
Eissa IAM, Mona M Ismail, Doaa GM Saleh, Rehab A Qorany

Abstract
A total of 300 freshwater fishes of two species (160 O. niloticus and 140 CL. gariepinus) of different sizes and life stages were randomly collected in different seasons alive or freshly dead from September 2018 to August 2019 from fish farms in Ismailia governorate, Egypt. Naturally infested fishes revealed few phatho gnomonic clinical signs as leathergy, erosion in fins, ulcers on skin in O. niloticus and Cl. gariepinus in severe cases. Postmortem examination showed presence of yellow cysts embeded in musculature and kidney of Cl. gariepinus and enlargement of liver with yellowish discoloration in O. niloticus. The total infestation rate was (74.33%); in O. niloticus (73.13%) and in Cl. gariepinus (75.71%). The isolated helminthes from O. niloticus were Eumesenia aegypticus (Digenetic trematodes) which isolated from intestine and Acanthocentis tilapiae was also found in its intestinal contents. Cl. gariepinus was infested with Orientocredium batrachoides (Digenetic trematodes), Monobothrioides species, Polyonchobthorium clarias (Cestodes) and Procamallanus laeviconchus, Paracamallanus cyathopharynx (Nematodes) which were isolated from intestine. While encysted metacercariae (EMC) were isolated from different organs of infested O. niloticus and Cl. gariepinus as gills, air sac, kidney, heart and musculature. Molecular diagnosis (PCR) was used to confirm infestation with helminthes parasites.

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