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Evaluation the Correlation Between Pathogenic Microorganisms on Cultured Clam Meretrix SP. and Disease Incidence

Received: 18 May 2020    Accepted: 11 June 2020    Published: 20 June 2020
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Abstract

The study was carried out to determine the density of Vibrio sp. and Vibrio sp. in cultured clams and evaluate the correlation between pathogenic microorganisms and disease incidence of white clams (Meretrix Lyrata) in Mekong Delta from March to May 2019. Clam samples were collected in different four regions (Ben Tre, Tra Vinh, Bac Lieu, and Tien Giang provinces) and there was mass mortality of clam in Tra Vinh province in May. In this assay, determination of the Vibrio sp. density was performed using Vibrio sp. selective Thiosulfate Citrate Bile Salt agar plates. Also, the Vibrio sp. was cultured in Fluid thioglycollate medium to isolating the spore that effect to harmful for cultured clam. Then, T-test and one-way ANOVA analysis were used to access the impacts of those parameters on the clam health. Clams did not show specific clinical signs, and histological results showed minor injuries on their shells and gills. Correlation analysis revealed some biotic components related to clam health status; they were several Vibrio bacteria in clams were in the range of 0-2.23 x 105 (CFU/g). The presence of Vibrio sp. was detected in the clam tissue with a prevalence of 53% of the ratio of infection and the infection intensity of 4.08-57.43 (spores/g). However, the density of Vibrio sp. and the ratio of infection of Vibrio sp. on clam was no significant difference on outbreak disease and non-outbreak disease factor on clam samples (P>0.05) in the clam samples. Thus, dead clams can be caused by several other factors.

Published in Agriculture, Forestry and Fisheries (Volume 9, Issue 4)
DOI 10.11648/j.aff.20200904.11
Page(s) 97-104
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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

Venerid Clams, Meretrix Lyrata, M. Meretrix

References
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  • APA Style

    Nguyen Duc Minh, Le Ngoc Hanh, Nguyen Thuy Linh. (2020). Evaluation the Correlation Between Pathogenic Microorganisms on Cultured Clam Meretrix SP. and Disease Incidence. Agriculture, Forestry and Fisheries, 9(4), 97-104. https://doi.org/10.11648/j.aff.20200904.11

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    ACS Style

    Nguyen Duc Minh; Le Ngoc Hanh; Nguyen Thuy Linh. Evaluation the Correlation Between Pathogenic Microorganisms on Cultured Clam Meretrix SP. and Disease Incidence. Agric. For. Fish. 2020, 9(4), 97-104. doi: 10.11648/j.aff.20200904.11

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    AMA Style

    Nguyen Duc Minh, Le Ngoc Hanh, Nguyen Thuy Linh. Evaluation the Correlation Between Pathogenic Microorganisms on Cultured Clam Meretrix SP. and Disease Incidence. Agric For Fish. 2020;9(4):97-104. doi: 10.11648/j.aff.20200904.11

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  • @article{10.11648/j.aff.20200904.11,
      author = {Nguyen Duc Minh and Le Ngoc Hanh and Nguyen Thuy Linh},
      title = {Evaluation the Correlation Between Pathogenic Microorganisms on Cultured Clam Meretrix SP. and Disease Incidence},
      journal = {Agriculture, Forestry and Fisheries},
      volume = {9},
      number = {4},
      pages = {97-104},
      doi = {10.11648/j.aff.20200904.11},
      url = {https://doi.org/10.11648/j.aff.20200904.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.aff.20200904.11},
      abstract = {The study was carried out to determine the density of Vibrio sp. and Vibrio sp. in cultured clams and evaluate the correlation between pathogenic microorganisms and disease incidence of white clams (Meretrix Lyrata) in Mekong Delta from March to May 2019. Clam samples were collected in different four regions (Ben Tre, Tra Vinh, Bac Lieu, and Tien Giang provinces) and there was mass mortality of clam in Tra Vinh province in May. In this assay, determination of the Vibrio sp. density was performed using Vibrio sp. selective Thiosulfate Citrate Bile Salt agar plates. Also, the Vibrio sp. was cultured in Fluid thioglycollate medium to isolating the spore that effect to harmful for cultured clam. Then, T-test and one-way ANOVA analysis were used to access the impacts of those parameters on the clam health. Clams did not show specific clinical signs, and histological results showed minor injuries on their shells and gills. Correlation analysis revealed some biotic components related to clam health status; they were several Vibrio bacteria in clams were in the range of 0-2.23 x 105 (CFU/g). The presence of Vibrio sp. was detected in the clam tissue with a prevalence of 53% of the ratio of infection and the infection intensity of 4.08-57.43 (spores/g). However, the density of Vibrio sp. and the ratio of infection of Vibrio sp. on clam was no significant difference on outbreak disease and non-outbreak disease factor on clam samples (P>0.05) in the clam samples. Thus, dead clams can be caused by several other factors.},
     year = {2020}
    }
    

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  • TY  - JOUR
    T1  - Evaluation the Correlation Between Pathogenic Microorganisms on Cultured Clam Meretrix SP. and Disease Incidence
    AU  - Nguyen Duc Minh
    AU  - Le Ngoc Hanh
    AU  - Nguyen Thuy Linh
    Y1  - 2020/06/20
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    N1  - https://doi.org/10.11648/j.aff.20200904.11
    DO  - 10.11648/j.aff.20200904.11
    T2  - Agriculture, Forestry and Fisheries
    JF  - Agriculture, Forestry and Fisheries
    JO  - Agriculture, Forestry and Fisheries
    SP  - 97
    EP  - 104
    PB  - Science Publishing Group
    SN  - 2328-5648
    UR  - https://doi.org/10.11648/j.aff.20200904.11
    AB  - The study was carried out to determine the density of Vibrio sp. and Vibrio sp. in cultured clams and evaluate the correlation between pathogenic microorganisms and disease incidence of white clams (Meretrix Lyrata) in Mekong Delta from March to May 2019. Clam samples were collected in different four regions (Ben Tre, Tra Vinh, Bac Lieu, and Tien Giang provinces) and there was mass mortality of clam in Tra Vinh province in May. In this assay, determination of the Vibrio sp. density was performed using Vibrio sp. selective Thiosulfate Citrate Bile Salt agar plates. Also, the Vibrio sp. was cultured in Fluid thioglycollate medium to isolating the spore that effect to harmful for cultured clam. Then, T-test and one-way ANOVA analysis were used to access the impacts of those parameters on the clam health. Clams did not show specific clinical signs, and histological results showed minor injuries on their shells and gills. Correlation analysis revealed some biotic components related to clam health status; they were several Vibrio bacteria in clams were in the range of 0-2.23 x 105 (CFU/g). The presence of Vibrio sp. was detected in the clam tissue with a prevalence of 53% of the ratio of infection and the infection intensity of 4.08-57.43 (spores/g). However, the density of Vibrio sp. and the ratio of infection of Vibrio sp. on clam was no significant difference on outbreak disease and non-outbreak disease factor on clam samples (P>0.05) in the clam samples. Thus, dead clams can be caused by several other factors.
    VL  - 9
    IS  - 4
    ER  - 

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Author Information
  • Faculty of Biological Technologies, Research Institute of Aquaculture No. 2, Ho Chi Minh City, Viet Nam

  • Faculty of Biological Technologies, Research Institute of Aquaculture No. 2, Ho Chi Minh City, Viet Nam

  • Faculty of Resources Management, Thai Nguyen University Agriculture and Forestry, Thai Nguyen City, Viet Nam

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