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Association of Enterobacter cloacae in the mortality of Pangasianodon hypophthalmus (Sauvage, 1878) reared in culture pond in Bhimavaram, Andhra Pradesh, India

2013; Indian Council of Agricultural Research; Volume: 60; Issue: 3 Linguagem: Inglês

0970-6011

Kundan Kumar, K. Pani Prasad, Ram Prakash Raman, Saurav Kumar, C. S. Purushothaman,

Vibrio bacteria research studies

Enterobacter cloacae , associated with mortality of freshwater reared Pangasianodon hypophthalmus in Bhimavaram, Andhra Pradesh, is reported for the first time in India. The prominent clinical signs of infected fish were reddish lesions near the pectoral fin and belly regions. The bacterium isolated from the infected fish was identified as E. cloacae by biochemical tests and 16SrDNA sequencing. The clinical signs could be reproduced in healthy fish following injection of the bacterial isolate. The results of this study provided strong evidence to link E. cloacae with the mortality of cultured P. hypophthalmus .