Histopathological, parasitological and molecular biological studies on metacercariae from Oreochromis niloticus and Clarias gariepinus cultured in Egypt [electronic resource].

Includes references.

Oreochromis niloticus and Clarias gariepinus collected from June 2008 to May 2009 from three different types of fish farms in Egypt and subjected for encysted metacercariae infestation microscopically, biologically and by PCR test. Infection was highest at semi-intensive farms and lowest at desert farms. Clarias gariepinus was more heavily infested than Oreochromis niloticus. Prevalence was highest during summer on the gills of Orecochromis niloticus and musculature of Clarias gariepinus. Biological experimentation using puppies, revealed Heterophyes heterophyes, H aequalis, Pygidiopsis genata, Procerovum varium, Haplorchis pumilio, H taichui, Stictodora tanayensis, Prohemistomum vivax, Gelanocotyle milvi, Mesostephanus appendiculatus, M milvi and M fajardensis. Microscopically, the affected muscles revealed encysted metacercariae surrounded by a connective tissue capsule.

Summary in Arabic.

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