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題 名 | 虹鱒(Oncorhynchus mykiss)魚孢黴菌感染症=Ichthyophonus Spp. Infection in Rainbow Trout (Oncorhynchus Mykiss) |
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作 者 | 涂青宇; 林育興; 林正忠; 董光中; 劉正義; 王渭賢; | 書刊名 | 臺灣畜牧獸醫學會會報 |
卷 期 | 68:3/4 民87.12 |
頁 次 | 頁155-161 |
分類號 | 438.661 |
關鍵詞 | 虹鱒; 魚孢黴菌; 魚; Rainbow trout; Ichthyophonus; Fish; Aeromonas hydrophila; |
語 文 | 中文(Chinese) |
中文摘要 | 南投縣某虹鱒(Oncorhynchus mykiss)養殖場於1997年 10 月下旬,餵飼發霉飼 料之後,陸續發現鱒魚死亡 (發病率為 100%,五天內累積死亡率達 15%),發病魚隻外觀 呈現體色變黑、臀鰭基部出血等症狀,並於剖檢後在肝、脾、腎、心臟及消化道有直徑大小 不一的黃白色肉芽腫病變。經由鏡檢及組織病理學檢查,可在心,肝、脾、腎、消化道及眼 球玻璃樣體組織看見大小不一的黴菌芽胞及菌絲存在, 利用 PAS 特殊染色可見黴菌菌絲廣 泛存在各臟器組織中。微生物分離及生化鑑定貝 1 」分離出 Aeromonas hydrophila。因此 診斷本病歷為虹鱒之魚孢黴菌 (Ichthyophonus spp . ) 感染症併發二次性細菌感染。 |
英文摘要 | Over 18,000 rainbow trouts were raised in an aquacuiture farm in the mountain area of the Nantou county. At the end of October 1997, a large number of dead cultured rainbow trouts in the farm were found. The morbidity and mortality of the case were 100% and 15 %, respectively. The clinical signs of infected fish were slow motion, anorexia, and dark color. There were a lot of yellow-white nodules on the heart, liver, spleen, kidney, and gut. Clinical diagnosis made from wet mounts showed fungus structure which were branching, non-septate, and spore of approximately 40 u m in diameter. The histopathologic finding showed light inflammatory response to spore and aseptate hyphae. The fungal hyphae was PAS positive. After microbial isolation and biochemical examination, the pathogen were identi fied as Ichthyophonus spp. and Aeromonas hydrophila as being the concomitant bacterial infection. |
本系統中英文摘要資訊取自各篇刊載內容。