【摘要】 在福州地区分离到一种高致病性的白斑病病毒 ,该病毒致病性强 ,可感染不同品种、不同生长期和不同形体大小的个体 .引发的病害潜育期短、病程短、死亡率高 .病害覆盖面积广 ,发病时间大多集中在 6月和 9月 ,其中以 6月中下旬最为集中 .以长毛对虾为对象测定温度与侵染性关系 ,结果表明 ,高温可促进发病 ,低温可延缓发病并延长病程 ;在长毛对虾生长的适温范围 (8～ 32℃ )内 ,病毒均可侵染并造成寄主发病 .病毒的感染途径主要是经口感染 ,通过摄食饵料和携带病原的病弱个体等方式传播 ,正常情况下 ,不会经水传播 .更多还原

【Abstract】 A high virulent virus of white spot disease was got in Fuzhou.The virus can infect different species of shrimp with different growth periods and sizes.The average incubation period and coures of the disease is short,and the mortality is high.The disease is all over Fuzhou, and mainly occurred in June and September.Experiment of artificial infection shows,in the wide range of temperanure(8～32 ℃) that is appropriate for growth of Penaeus penicillatus, the virus can infect shrimp The transmission is mainly though feed, including alive feed and ill shrimp with virion.However, in general, water can not transmit virion.更多还原