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(국립수산과학원) (국립수산과학원) (국립수산과학원) (국립수산과학원) (국립수산과학원) (경상북도 토속어류산업화센터) (국립수산과학원)
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한국수산해양교육학회 수산해양교육연구 수산해양교육연구 제28권 제3호 (통권 제81호)
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    초록·키워드

    Snakehead, Channa argus were intraperitoneally infected with Nocardia seriolae. at the concentrations of 1.5×10<SUP>7</SUP> cfu/㎖ or 1.5×10<SUP>8</SUP> cfu/㎖. The infected fish were kept in aquaria at 25℃ and 30℃ for 3 weeks. Clinical signs and mortality were monitored daily to evaluate the virulence. All artificially infected fish showed the same clinical sign found in naturally infected fish. All the fish infected with 1.5×10<SUP>8</SUP> cfu/㎖ of N. seriolae died within 24days. N. seriolae showed higher virulence to snakehead at the temperature 30℃. Internal lesions such as whitish nodules in the infected internal organs were not correlated with mortality but some degenerative changes were observed in all the infected organs within a week. Whitish nodules in the infected organs which are the typical character in nocardial infection was initially found at two weeks after the artificial infection in snakehead.

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      UCI(KEPA) : I410-ECN-0101-2017-454-000645882