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Title: In Vitro Antimicrobial Susceptibility of Photobacterium Damselae ssp. Piscicida from Cobia (Rachycentron Cannadum) at Penghu (Pescodores) Islands, Taiwan during 1999-2008
Authors: Chen-Chun Ku;Chun-Shun Wang;Fan-Hua Nan;Chih-Hui Lu
Contributors: NTOU:Department of Aquaculture
Keywords: 海水箱網養殖;海鱺;巴斯德桿菌症;藥物敏感性試驗
Sea cage-farming;Cobia;Pasteurellosis;Drug sensitivity testing
Date: 2009-06
Issue Date: 2011-10-21T02:19:58Z
Publisher: Journal of The Fisheries Society of Taiwan
Abstract: Abstract:Acute bacterial septicemic infection in sea cage-cultured juvenile cobia (Rachycentron cannadum) has occurred at Penghu (Pescodores) Islands, Taiwan, since October of 1999 with a 30-80% mortality rate. Diseased fish exhibited no apparent surface lesions; however, the kidney and spleen demonstrated swelling and white tubercles. The bacterium was identified as Photobacterium damselae ssp. piscicida, based on the results of the API-20E system and Bionor Mono-Pp kit. The pathogenicity of the isolate to cobia was confirmed by intraperitoneal injection and immersion. From histological examinations, multifocal necrosis and/or granulomatatous inflammation were found in tissue sections. Drug sensitivity testing indicated this pathogen were sensitive to amoxicillin, chloramphenicol, oxolinic acid, oxytetracycline, trimethoprim-sulfamethoxazole (SXT), and flumequine in 1999. However, amoxicillin-, chloramphenicol-, and oxytetracycline-resistant Photobacterium damselae ssp. piscicida were isolated in 2000. SXT-, oxolinic acid- and flumequine-resistant P. damselae ssp. piscida were isolated from sea cage-cultured cobia at Penghu in 2002, 2006, and 2007, respectively.
Relation: 36(2), pp.151-160
URI: http://ntour.ntou.edu.tw/handle/987654321/26934
Appears in Collections:[水產養殖學系] 期刊論文

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