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International Journal of Fisheries and Aquatic Studies
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(ICV-Poland) Impact Value: 76.37, Impact Factor: RJIF 5.69
E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2018, Vol. 6, Issue 3, Part E

Pathogenicity and control of Aeromonas hydrophila and A. veronii in Indian major carps (Catla-catla) by the effect of herbal supplement of Andrographis paniculata (Lamiales: Acanthaceae)


Author(s): Radhakrishan Palanikani, Ramaiah Soranam and Kanagaraj Muthu-Pandian Chanthini

Abstract: Plant extracts are focused for their potential as immunostimulants against the infectious diseases of fish. The present study was designed to evaluate the acquired immunity stimulated by methanolic extract of Andrographis paniculata against the pathogens, Aeromonas hydrophila and A. veronii in Catla-catla. The fishes were fed with diet incorporated with A. paniculata extract. Post 14 days, serum parameter analyses revealed an increase in total haemoglobin (10-11.5 g %), erythrocyte (34.7 105 mm-3) and leukocyte count (3.9 × 104 cell.mm-3). The phagocytic index of infected fishes treated with extracts increased in a dose dependent manner (31.25%), exhibiting 100 % Relative Percentage Survival. Adverse changes in the disease symptoms were also observed post treatment with extracts. The extracts of A. paniculata were able to inhibit the pathogens even at low concentration (50 µl). This study hence proves that the extracts of A. paniculata can be used as an immunostimulants.

Pages: 361-370  |  349 Views  18 Downloads

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How to cite this article:
Radhakrishan Palanikani, Ramaiah Soranam, Kanagaraj Muthu-Pandian Chanthini. Pathogenicity and control of Aeromonas hydrophila and A. veronii in Indian major carps (Catla-catla) by the effect of herbal supplement of Andrographis paniculata (Lamiales: Acanthaceae). Int J Fish Aquat Stud 2018;6(3):361-370.
International Journal of Fisheries and Aquatic Studies