Bacteria found in fresh water fish (tilapia)

Chike, Michael Nnamdi (2018) Bacteria found in fresh water fish (tilapia). Other thesis, Godfrey Okoye University Ugwuomu-Nike, Enugu.

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The study onbacteria associated with fresh Tilapia fish (Oreochromisniloticus) sold at Enugu market, Enugu. Nigeria. Sections of the skin, gills and intestine of five randomly selected fishes were aseptically removed by means of a sterile scalpel and pair of sterile scissors. Four (4g) each of the sections were homogenized in 6 ml of sterile distilled water, which served as the original stock culture. A serial dilution up to 102 was carried out, and surface plated on nutrient agar. A total of nine (10) bacterial species were isolated and identified. Six (6) were gram negative namely: Salmonella spp, Listeriamonocytogenes, Escherichia coli, Enterobacterspp,klebsiellaaerogenosa and proteussppand four gram positive bacteria namely: Staphylococcus aureus,Micrococcusspp, Bacillus spp and Lactobacillus spp. The frequency of occurrences of the isolated Bacteria indicated that Escherichia coli had the highest frequency of occurrence (10%), while Salmonella spp. had the least occurrence (4%). The mean viable Bacterial count from each section of the samples revealed 20.3 x107cfug-1 from the gills, 40.1 x 108cfug-1 from the intestine and 27.1 x 108cfug-1 from the skin. The isolates were found to be of medical importance.

Item Type: Thesis (Other)
Subjects: R Medicine > R Medicine (General)
Divisions: Faculty of Natural and Applied Sciences
Depositing User: Michael Michael nnamdi Chike
Date Deposited: 08 Oct 2018 10:22
Last Modified: 08 Oct 2018 10:22

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