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观赏鱼体表溃疡病的病原体介绍

作者:尘风发布:2014-12-09 9:14:02阅读:3,497次

观赏鱼体表溃疡病的病原体介绍
锦鲤(详情介绍)

  观赏鱼鱼体表溃疡是观赏鱼的常见疾病,主要危害乌鳢、加州鲈、齐口裂腹鱼和大口鲇等,病原体为嗜水气单胞菌。当水温在15℃以上,该病就会开始流行。

  嗜水气单胞菌(Aeromonas hydrophila)、温和气单胞菌(A.sobria)和豚鼠气单胞菌(A.caviae)等。嗜水气单胞菌菌体呈杆状,两端钝圆,中轴端直,0.5~0.9m×1.0~2.0m,单个散在或两两相连、能运动,极端单鞭毛,无芽胞,无荚膜。革兰氏染色阴性。温和气单胞菌菌体大小为0.3~0.5μm×0.8~1.3μm,两端钝圆,单个、成对或短链,有运动能力,极生单鞭毛,无芽孢、无荚膜,革兰氏阴性短杆菌。

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