南美白对虾早期死亡综合症发病原因及防治措施

• 作 者: 严天鹏
• 机 构: 福建省龙海市水技站,
• 出 处: 渔业致富指南
• 发表日期: 2014年02期
• 关键词: 对虾养殖 南美白对虾 早期死亡 原因及防治

南美白对虾早期死亡综合症是导致近年对虾养殖早期高死亡、高排塘主要原因。病因疑为感染于对虾体内的副溶血弧菌。一、对虾早期死亡综合症的表现症状及致病机理1.表现症状:虾苗放养7-30天为该病高发期,患病虾体色白浊并微红,多数肝胰脏异常肿大,淡白色或淡黄色,部分病虾肝胰脏明显萎缩。病虾通常在池

Early death syndrome of Penaeus vannamei is the main reason leading to high mortality and high discharge in early shrimp farming in recent years. The cause of the virus is suspected to be infected with Vibrio parahaemolyticus in shrimp. First, the symptoms and pathogenesis of early death syndrome shrimp 1. Performance symptoms: Shrimp stocking 7-30 days for the high incidence of disease, sick white shrunken and reddish shrimp, liver and pancreas most of the majority of abnormal swelling, Pale white or light yellow, some diseased shrimp liver and pancreas significantly shrunk. Sick shrimp are usually in the pool