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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(8): 636-649
DOI: https://doi.org/10.20546/ijcmas.2020.908.071


Effect of Fucoidan of Brown Seaweeds on the Immuno-haematological Change and the Disease Resistance against Aeromonas hydrophila in Tilapia Oreochromis mossambicus
Rani*, P. Jawahar, R. Jeyashakila and A. Srinivasan
Fisheries College and Research Institute, Tamil Nadu Dr. J. Jayalalithaa Fisheries University, Thoothukudi - 8, Tamil Nadu, India
*Corresponding author
Abstract:

An experiment was conducted to study the influence of dietary fucoidan from brown seaweeds viz., Padina tetrastromatica and Sargassum oligocystum on the innate immunity and disease resistance of fish Oreochromis mossambicus. Fucoidan was supplemented with fish feed at different concentrations such as 0.1, 0.2 and 0.3% to observe hematological changes and non-specific immunological properties for a period of 60 days. The results indicated that fucoidan supplemented diet had no significant effect on hematological changes whereas, the lysozyme activity was significantly increased in the fishes fed with fucoidan of P. tetrastromatica (4012 ± 2198 IU ml-1) on 30th day and S. oligocystum (2412 ± 221 IU ml-1) on 15th day at 0.2% and 0.3% concentration, respectively. NBT activity was found to be highest at 15th, 30th and 45th days in fishes fed with 0.1, 0.2 and 0.3% of fucoidan derived from P. tetrastromatica. The results stated that the fucoidan derived from S. oligocystum has relatively lower lysozyme and NBT activity than from P. tetrastromatica but higher than the control. The fish O.mossambicus challenged with A. hydrophila, feeding offucoidan extracted from the seaweeds invariably increased the survival upto 75%, 80% at 0.2 and 0.3% and 65, 70% respectively than the control.


Keywords: Brown seaweeds, fucoidan, Hematological changes, Innate immunity, Oreochromis mossambicus, Aeromonas hydrophila
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How to cite this article:

Rani, V., P. Jawahar, R. Jeyashakila and Srinivasan, A. 2020. Effect of Fucoidan of Brown Seaweeds on the Immuno-haematological Change and the Disease Resistance against Aeromonas hydrophila in Tilapia Oreochromis mossambicus.Int.J.Curr.Microbiol.App.Sci. 9(8): 636-649. doi: https://doi.org/10.20546/ijcmas.2020.908.071