Experimental infection of some bacterial fish pathogens in the cichlid fish, Oreochromis mossambicus


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Authors

  • M Omprakasham University of Madras, Madras, Tamil Nadu 600 210
  • L Manohar University of Madras, Madras, Tamil Nadu 600 210

Abstract

Bacterial strains of Pseudomonas fluorescein (NCIB), Pseudomonasfluoresceins (ATCC), Pseudomonas
putida (NClB),Escherichia coli (NCIB) and Proteus vulgaris (NCIM) were inoculated into
Oreochromis mossambicus through different routes of administration and observed for external and
internal pathological changes. The dropsical condition, the typical symptom of bacterial haemorrhagic
septicaemia, was observed in only those fish which were injected with Ps.fluorescens through parenteral
route of administration, while the scarification method produced variations with the 2 different strains. Ps.
putida showed low virulence and pathogenicity. E. coli caused pronounced enteritic conditions. The fish
however, did not respond to Pr. vulgaris, by all the 3 routes of administration. The varying degrees of
susceptibility is interpreted as due to the strain virulence of the bacterial pathogens tested and the
susceptibility of the fish species.

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Author Biographies

  • M Omprakasham, University of Madras, Madras, Tamil Nadu 600 210
    University of Madras, Madras, Tamil Nadu 600 210
  • L Manohar, University of Madras, Madras, Tamil Nadu 600 210
    University of Madras, Madras, Tamil Nadu 600 210

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Issue

Vol. 38 No. 2 (1991)

Section

Articles

License

The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.

How to Cite

Omprakasham, M., & Manohar, L. (2011). Experimental infection of some bacterial fish pathogens in the cichlid fish, Oreochromis mossambicus. Indian Journal of Fisheries, 38(2), 106-110. https://epubs.icar.org.in/index.php/IJF/article/view/10326