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Efficacy of attenuated bacteria vaccine against streptococcal infection in larvae tilapia (Oreochromis niloticus)

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Abstract

One of the common diseases found in tilapia is a streptococcal disease caused by the Streptococcus agalactiae bacteria. Treatment of this disease is generally done by using antibiotics.  The use of antibiotics in controlling disease in fish can create resistant bacterial strains with certain doses. The use of vaccines is one of the alternative control methods in fish defence against infections. The purpose of this study was to analyze the efficacy of vaccination on seeds through immersion using attenuated active bacteria to increase immunity at the beginning of the spread of streptococcosis disease. The vaccine used was obtained from attenuated Streptococcus agalactiae bacteria through repeated passage ten times. Vaccination was carried out through oral vaccine. Challenge tests were carried out on days 7, 14, and 21 days after vaccination on tilapia larvae by immersion. The result indicated that vaccination using attenuated bacteria could increase lysozyme activity at each observation time compared to control. The mortality of post-challenged larvae on days 7, 14 and 21 post-vaccination was lower than that of unvaccinated seed. The percentage of RPS values up to the 14th day of observation has increased and tends to decrease on the 21st day.

Keywords

Attenuated vaccine
Tilapia
Larvae
Streptococcal diseases

Introduction

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Material and Methods

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Results

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Discussion

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Funding Information

Indonesian Ministry of Research, Technology and Higher Education (Ristekdikti) to provide funding for this study (contract no. 6572/LL9/ KU.03.00/2021).

Competing interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Conflict of interest

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Ethical approval acknowledgements

No ethical approval required for this article. All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008 (5)

Supplementary files

Data sharing not applicable to this article as no datasets were generated or analysed during the current study, and/or contains supplementary material, which is available to authorized users.

Bibliographic Information

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Cite this article as:

Suryahman, A., Masriah, A., Nisaa, K., Rahmi, & Akmal, 2021. Efficacy of attenuated bacteria vaccine against streptococcal infection in larvae tilapia (Oreochromis niloticus). Akuatikisle: Jurnal Akuakultur, Pesisir dan Pulau-Pulau Kecil 5(2): 63-66. https://doi.org/10.29239/j.akuatikisle.5.2.63-66
  • Submitted
    10 November 2021
  • Accepted
    14 November 2021
  • Published
    15 November 2021
  • Version of record
    26 November 2021
  • Issue date
    30 November 2021
  • Academic subject
    Aquaculture

Keywords

Copyright

Copyright © 2021 Agus Suryahman, Andi Masriah, Khairun Nisaa, Rahmi, Akmal

AgusSuryahman, Faculty of Fisheries, Cokroaminoto University of Makassar, Jl. Perintis Kemerdekaan KM 11, Makassar, South Sulawesi 90245, Indonesia.

suryahmanagus@gmail.com

AndiMasriah, Faculty of Fisheries, Cokroaminoto University of Makassar, Jl. Perintis Kemerdekaan KM 11, Makassar, South Sulawesi 90245, Indonesia.

andimasriah@gmail.com
Khairun Nisaa

KhairunNisaa, Faculty of Fisheries, Cokroaminoto University of Makassar, Jl. Perintis Kemerdekaan KM 11, Makassar, South Sulawesi 90245, Indonesia.

nisauicha27@gmail.comscholarGoogle Scholar Profile

Rahmi, Faculty of Agricultural, Muhammadiyah University of Makassar, Jl. Sultan Alauddin No.259 Makassar, South Sulawesi 90221, Indonesia.

ammy_akl@yahoo.co.id

Akmal, The Center for Brackish Water Aquaculture Takalar, Jl. Perikanan, Desa Mappakalompo, Kecamatan Galesong, Kabupaten Takalar, South Sulawesi 92254, Indonesia.

akmal_bbaptakalar@yahoo.com

The Indonesian Archipelago has enormous potential for marine resources. Marine biological resources are scattered in almost all areas from the coast to the deep sea. Various biological resources of mangroves, fish, shellfish, crustaceans, corals, and much more. Behind that, there are the challenges of resource management and economic growth.

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