STUDIES ON THE MORPHOLOGICAL, BIOLOGICAL AND BIOCHEMICAL CHARACTERS OF FLAVOBACTERIUM SP., ISOLATED FROM DISEASED FISHES (LABES NILOTICUS) IN UPPER EGYPT

Document Type : Research article

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Abstract

Twenty fish samples from labes niloticus were collected randamly from River Nile. Five samples showed pale colouration of the gills with signs of oxygen deficiency. Seven isolates of Flavobacterium Sp. were isolated from the gills. The morphological, biological and biochemical feature were discussed. The bacterial isolates were highly sensitive to erythromy cin, nitrofurantion, oxytetracycline, tetracycline, neomycin and resistent to trimethoprim-sulfamethoxale.