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Position: Home > Articles > The pathogenic bacteria of the ‘erecting body’ disease in catfish, Clarias fuocus Journal of Fishery Sciences of China 2001,8 (2) 72-75

胡子鲇“吊头病”病原的研究

作  者：
李桂峰;李海燕;毕英佐
单  位：
广州大学生物系;华南农业大学动物科学系
关键词：
胡子鲇;吊头病;病原菌;鲁氏不动杆菌;抗生素
摘  要：
从患“吊头病”胡子鲇 (Clariasfuocus)的肝、肠和腹水分离出病原菌 ,用浸泡法和投喂法进行感染试验 ,两种方法的死亡率都在 80 %以上。通过细菌学和应用全自动化微生物鉴定系统 (VITEK - 12 0 )鉴定 ,结果表明 ,鲁氏不动杆菌 (Acinetobacterlwoffii)是胡子鲇“吊头病”的病原菌。用 2 5种抗生素进行敏感试验表明 ,鲁氏不动杆菌对其中大部分药物敏感 ,如普乐健、链霉素、卡那霉素、庆大霉素等 ,但对四环素、红霉素、苯唑青霉素、头孢他定不敏感。
译  名：
The pathogenic bacteria of the ‘erecting body’ disease in catfish, Clarias fuocus
作  者：
LI Gui feng 1,LI Hai yan 2,BI Ying zuo 1 (1.Department of Animal Science, South China Agricultural University,Guangzhou 510642, China; 2.Department of Biology ,Guangzhou University,Guangzhou 510530, China)
关键词：
Clarias fuocus;‘erecting body’disease; Pathogenic bacteria; Acinetobacter lwoffii; antibiotic
摘  要：
Erecting body’ disease is a kind of bacterial disease in catfish, especially within 3 cm of body length, with an infection rate exceeding 50%, causing great loss during breeding season. The pathogen was isolated from the liver, intestine and ascites of diseased fish, and artificially infected purely cultured fish, showing positive. The bacterium has a short rod,sized (1.5～2.5)μm×(1.0～1.5) μm, flagellumless, capsuleless, and no sporulation. The results of bacteriology identification show the pathogen is oxidase negative, catalase positive and gram negative in its stain reactions. The pathogen isolated is correspondent to the A.lwoffii in the characteristics of morphology, cultural characters as well as physiology and biochemistry reactions. Using 25 antibiotic drugs to test the sensitivities, the results show A.lwoffii is sensitive to most of them such as florfenicol, streptomycin, kanamycin and gentamycin, but not to tetracycline, ceftazidime, erythromycin and ceftazidime.

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