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Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Experimental challenge studies in Vietnamese catfish, Pangasianodon hypophthalmus (Sauvage), exposed to Edwardsiella ictaluri and Aeromonas hydrophila
Author(s): Crumlish, Margaret
Thanh, Pham Chi
Koesling, Jan
Tung, Vuong T
Gravningen, Kjersti
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Keywords: Aeromonas hydrophila
Edwardsiella ictaluri
Issue Date: Sep-2010
Citation: Crumlish M, Thanh PC, Koesling J, Tung VT & Gravningen K (2010) Experimental challenge studies in Vietnamese catfish, Pangasianodon hypophthalmus (Sauvage), exposed to Edwardsiella ictaluri and Aeromonas hydrophila, Journal of Fish Diseases, 33 (9), pp. 717-722.
Abstract: The two main diseases in the pangasius catfish industry are bacillary necrosis of Pangasianodon (BNP) and motile aeromonas septicaemia (MAS), where the aetiological agents have been identified as Edwardsiella ictaluri and Aeromonas hydrophila, respectively. In this study, apparently healthy Pangasianodon hypophthalmus were exposed to E. ictaluri, A. hydrophila or both bacterial species by intraperitoneal injection or immersion. There were 20 fish per treatment group, and the bacterial isolates used for the study were recovered from natural infections of BNP or MAS in farmed Vietnamese P. hypophthalmus. The results of the experimental infections mimicked the natural disease outbreaks reported from these pathogens in P. hypophthalmus. Furthermore, it was clearly demonstrated that E. ictaluri was only recovered from the fish exposed to the bacterium and not recovered from the animals receiving A. hydrophila.
DOI Link: 10.1111/j.1365-2761.2010.01173.x
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