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Bacteriological Quality of Tilapia Fish from Treated Wastewater in Peri-Urban Areas, Morogoro, Tanzania

Received: 16 August 2016    Accepted: 05 September 2016    Published: 06 October 2016
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Abstract

The aim of this study was to assess faecal bacterial contamination in tilapia fish from wastewater treatment ponds at Mzumbe and in pristine water in Mindu dam. Tilapia fish (fish flesh and fish intestines) and water samples were analysed for Escherichia coli and total plate count. The concentration of E. coli in fish intestines ranged from about 1 - 3.5 log cfu/g and <1 log cfu/g in fish flesh. Total plate count ranged from 1 – 3 log cfu/g in fish flesh and 2 – 6 log cfu/g in fish intestines. The concentration of E. coli in pristine water in Mindu dam ranged from 0 to 15 cfu/mL. From the inlet to outlet of Mzumbe wastewater treatment pond, there was a significant reduction (p<0.05) of E. coli concentration along the gradient from 2.05 to 0.55 log cfu/mL, respectively. These findings demonstrated that tilapia fish from the two study sites were of good quality for human consumption based on microbial faecal contamination. On the other hand treated wastewater of the quality found in this study may be used for aquaculture. However, continuous monitoring for bacteriological quality and safety parameters including E. coli and total plate count is required.

DOI 10.11648/j.aff.20160505.19
Published in Agriculture, Forestry and Fisheries (Volume 5, Issue 5, October 2016)
Page(s) 202-206
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Escherichia coli, Fish Culture, Fish Flesh, Fish Intestines, Water

References
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Author Information
  • Department of Veterinary Medicine and Public Health, Sokoine University of Agriculture, Chuo Kikuu, Morogoro, Tanzania

  • Department of Veterinary Medicine and Public Health, Sokoine University of Agriculture, Chuo Kikuu, Morogoro, Tanzania

  • Department of Veterinary Medicine and Public Health, Sokoine University of Agriculture, Chuo Kikuu, Morogoro, Tanzania; Office of the Vice Chancellor, Mzumbe University, Morogoro, Tanzania

  • Department of Veterinary Disease Biology, Copenhagen University, Frederiksberg C, Denmark

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  • APA Style

    Ofred Jonas Mhongole, Robinson Hammerthon Mdegela, Lughano Jeromey Moses Kusiluka, Anders Dalsgaard. (2016). Bacteriological Quality of Tilapia Fish from Treated Wastewater in Peri-Urban Areas, Morogoro, Tanzania. Agriculture, Forestry and Fisheries, 5(5), 202-206. https://doi.org/10.11648/j.aff.20160505.19

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    Ofred Jonas Mhongole; Robinson Hammerthon Mdegela; Lughano Jeromey Moses Kusiluka; Anders Dalsgaard. Bacteriological Quality of Tilapia Fish from Treated Wastewater in Peri-Urban Areas, Morogoro, Tanzania. Agric. For. Fish. 2016, 5(5), 202-206. doi: 10.11648/j.aff.20160505.19

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    AMA Style

    Ofred Jonas Mhongole, Robinson Hammerthon Mdegela, Lughano Jeromey Moses Kusiluka, Anders Dalsgaard. Bacteriological Quality of Tilapia Fish from Treated Wastewater in Peri-Urban Areas, Morogoro, Tanzania. Agric For Fish. 2016;5(5):202-206. doi: 10.11648/j.aff.20160505.19

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  • @article{10.11648/j.aff.20160505.19,
      author = {Ofred Jonas Mhongole and Robinson Hammerthon Mdegela and Lughano Jeromey Moses Kusiluka and Anders Dalsgaard},
      title = {Bacteriological Quality of Tilapia Fish from Treated Wastewater in Peri-Urban Areas, Morogoro, Tanzania},
      journal = {Agriculture, Forestry and Fisheries},
      volume = {5},
      number = {5},
      pages = {202-206},
      doi = {10.11648/j.aff.20160505.19},
      url = {https://doi.org/10.11648/j.aff.20160505.19},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.aff.20160505.19},
      abstract = {The aim of this study was to assess faecal bacterial contamination in tilapia fish from wastewater treatment ponds at Mzumbe and in pristine water in Mindu dam. Tilapia fish (fish flesh and fish intestines) and water samples were analysed for Escherichia coli and total plate count. The concentration of E. coli in fish intestines ranged from about 1 - 3.5 log cfu/g and <1 log cfu/g in fish flesh. Total plate count ranged from 1 – 3 log cfu/g in fish flesh and 2 – 6 log cfu/g in fish intestines. The concentration of E. coli in pristine water in Mindu dam ranged from 0 to 15 cfu/mL. From the inlet to outlet of Mzumbe wastewater treatment pond, there was a significant reduction (p<0.05) of E. coli concentration along the gradient from 2.05 to 0.55 log cfu/mL, respectively. These findings demonstrated that tilapia fish from the two study sites were of good quality for human consumption based on microbial faecal contamination. On the other hand treated wastewater of the quality found in this study may be used for aquaculture. However, continuous monitoring for bacteriological quality and safety parameters including E. coli and total plate count is required.},
     year = {2016}
    }
    

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  • TY  - JOUR
    T1  - Bacteriological Quality of Tilapia Fish from Treated Wastewater in Peri-Urban Areas, Morogoro, Tanzania
    AU  - Ofred Jonas Mhongole
    AU  - Robinson Hammerthon Mdegela
    AU  - Lughano Jeromey Moses Kusiluka
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    AB  - The aim of this study was to assess faecal bacterial contamination in tilapia fish from wastewater treatment ponds at Mzumbe and in pristine water in Mindu dam. Tilapia fish (fish flesh and fish intestines) and water samples were analysed for Escherichia coli and total plate count. The concentration of E. coli in fish intestines ranged from about 1 - 3.5 log cfu/g and <1 log cfu/g in fish flesh. Total plate count ranged from 1 – 3 log cfu/g in fish flesh and 2 – 6 log cfu/g in fish intestines. The concentration of E. coli in pristine water in Mindu dam ranged from 0 to 15 cfu/mL. From the inlet to outlet of Mzumbe wastewater treatment pond, there was a significant reduction (p<0.05) of E. coli concentration along the gradient from 2.05 to 0.55 log cfu/mL, respectively. These findings demonstrated that tilapia fish from the two study sites were of good quality for human consumption based on microbial faecal contamination. On the other hand treated wastewater of the quality found in this study may be used for aquaculture. However, continuous monitoring for bacteriological quality and safety parameters including E. coli and total plate count is required.
    VL  - 5
    IS  - 5
    ER  - 

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