Abstract
A grand total of 100 random samples of fresh water fish with average weight 100-250g(Oreochromis niloticus), marine water fish (Mugil cephalus), and shell fish (shrimp and crab) withaverage weight 10-50g were collected from different markets in Gharbia governorate for detectionof Vibrio spp. The obtained results revealed that the incidence of Vibrio spp. in fresh water fish(Oreochromis niloticus) were 8 (32%), with frequency of 2 (8%), 2 (8%), 2 (8%), 1 (4%) and 1 (4%)for V. parahaemolyticus, V. mimicus, V. vulnificus, V. alginolyticus and V. fluvialis, respectively. Inmarine fish (Mugil cephalus),Vibrio spp. were 10 (40%), the overall incidence in the samples wasfor V. parahaemolyticus 3(12%), V. mimicus 2(8%), V. alginolyticus 2 (8%), V. vulnificus 1 (4%)and V. fluvialis 2 (8%). In shell fish (shrimp), Vibrio spp. were 13 (52%) while the overall incidencein the samples was V. parahaemolyticus 4 (16%), mimicus 3 (12%), V. alginolyticus 2 (8%), V.vulnificus 1 (4%), V. fluvialis 2 (8%) and V. cholera 1 (4%). Regarding crab, Vibrio spp. were 11(44%) while the overall incidence in the samples was V. parahaemolyticus 3 (12%), mimicus 2 (8%),V. alginolyticus 2 (8%), V. vulnificus 1 (4%), V. fluvialis 2 (8%) and V. cholera 1 (4%).
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