Nocardiosis in sea bass, <i>Lateolabrax japonicus</i>, in Taiwan

DOI Web Site Web Site 被引用文献6件

抄録

<jats:p>An epizootic in pond cultured sea bass, <jats:italic>Lateolabrax japonicus</jats:italic>, was caused by <jats:italic>Nocardia</jats:italic> sp. in Taiwan, in September and October 1997. The cumulative mortality within 1 month was 17.5% (3500 out of 20 000 fish) and diseased fish were 7 months old with total lengths from 25 to 30 cm. Multiple, yellowish white nodules, 0.1–0.2 cm in diameter, were scattered in the gill, heart, liver, spleen and kidney. Histopathologically, typical granulomatous lesions appeared in those organs. The morphology of isolated bacteria from brain heart infusion (BHI) medium or Lowenstein–Jensen medium (LJM) were bead‐like filaments, as shown by Ziehl‐Neelsen's (ZN) staining method. The gross lesion and histopathological changes found in experimentally infected fish were similar to those in naturally infected fish. Based on the growth characteristics, morphological and biochemical properties of the bacterium, and histopathological changes, the isolated bacteria were identified as <jats:italic>Nocardia</jats:italic><jats:italic>seriolae</jats:italic>. This is the first report of <jats:italic>N. seriolae</jats:italic>‐infected sea bass in aquaculture.</jats:p>

収録刊行物

被引用文献 (6)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ