罗非鱼竖鳞病病原维氏气单胞菌的分离鉴定与致病性研究

doi:10.16431/j.cnki.1671-7236.2016.11.035

Abstract

Abstract:

In order to study the pathogenicity of the pathogenic bacteria in the vertical scale disease of Tilapia,one strain of pathogenic bacteria was isolated from different parts of the diseased Tilapia,named as GXKJDX01.Then the methods of 16S rDNA gene sequence analysis,bacterial morphology observation,physiological and biochemical identification,drug sensitivity test and artificial infection test were used.The results showed that the pathogenic strain GXKJDX01 was Aeromonas veronii,strain GXKJDX01 was not sensitive to 5 medicines,including penicillin G,erythromycin,vancomycin,and had a strong pathogenic effect in yellow-head catfish meat,Tilapia,loach and Procypris merus.11 kinds of drugs,including of enrofloxacin,levofloxacin,ceftriaxone,could be effective to the prevention and control.This study is the first report on the case of the pathogenic bacteria of the lepidorthosis,which was the Aeromonas veronii,and the theoretical basis was provided for the effective prevention and control.

Key words: Tilapia; Aeromonas veronii; 16S rDNA; lepidorthosis

CLC Number:

S852.61

WEI Yang-dao, YANG Jun, WEN Yan-hong, SI Tu-ling, LIU Xia, YI Yi. Isolation,Identification and Pathogenicity of Aeromonas veronii from Lepidorthosis Pathogenic Bacteria of Tilapia[J]. , 2016, 43(11): 3047-3052.

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Isolation,Identification and Pathogenicity of Aeromonas veronii from Lepidorthosis Pathogenic Bacteria of Tilapia

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