Lethal dose and histopathological alterations induced by Aeromonas salmonicida in experimentally challenged common carp, Cyprinus carpio.
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Title |
Lethal dose and histopathological alterations induced by Aeromonas salmonicida in experimentally challenged common carp, Cyprinus carpio.
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Creator |
Raja Aadil Hussain Bhat
Dimpal Thakuria Maneesh Kumar Dubey Ritesh Shantilal Tandel Prakash Sharma Victoria C. Khangembam Pragyan Dash Gayatri Tripathi Debajit Sarma |
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Subject |
Aeromonas salmonicida,Common carp,Histopathology,LD50
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Description |
Not Available
Aeromonas salmonicida is the obligate pathogen of fishes having zoonotic potential. It is reported to cause considerable losses in world aquaculture. The current study has successfully demonstrated the induction of histopathological lesions in experimentally infected common carp. In the current study, the lethal concentration (LD50-96 h) of typical A. Salmonicida for common carp was found to be 1.5 ? 107CFU mL?1. About 40% and 60% fish mortalities occurred after 72 h in the groups inoculated with 107 and 108 CFU mL?1 bacterial suspension, respectively. The fish challenged with A. salmonicida showed symptoms like abnormal swimming behaviour, lethargy, intra-abdominal fluid, haemorrhages on the ventral side of the body, vent and fins. The signs proceeded with the death of fish. In the histological sections, severe pathological alterations were reported in the tissue sections of internal organs. The microscopic observation showed sinusoidal and large blood vessel congestion in the liver, profuse haemorrhage, necrosis and infiltration of blood cells in the internal organs. The tubular architecture was lost with the infiltration of leucocytes in the kidney. In gills, more intense and prominent lamellar fusion was observed with leucocytic infiltration, telangiectasia and hyperplasia of lamellar epithelial cells. In summary, we have experimentally induced the typical A. salmonicida infection in common carp. The study will provide a research foundation for further studies on the host-pathogen interaction, therapeutics and epidemiology of A. salmonicida. |
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Date |
2021-11-08T08:26:23Z
2021-11-08T08:26:23Z 2021-7-24 |
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Type |
Research Paper
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Identifier |
Bhat, R.A.H., Thakuria, D., Dubey, M.K., Tandel, R.S., Sharma, P., Khangembam, V.C., Dash, P., Tripathi, G. and Sarma, D., 2021. Lethal dose and histopathological alterations induced by Aeromonas salmonicida in experimentally challenged common carp, Cyprinus carpio. Microbial Pathogenesis, Vol. & Is
Not Available 0882-4010 http://krishi.icar.gov.in/jspui/handle/123456789/67135 |
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Language |
English
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Publisher |
Not Available
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