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今年8月初,高邮罗氏沼虾大规模发病,经高邮市农林局上报扬州市农林局,同时送样到南京检测,结果确认为细菌与病毒双重感染。该病具体表现为拉网后死亡量急剧上升,可达平时损耗量的7～10倍。二十亩的池塘最大死亡量可达一百多斤,严重挫伤了养殖户的养殖热情。一、病症及病因该病?
Early August this year, Gaoyou Macrobrachium large-scale incidence, reported by the Gaoyou Agriculture and Forestry Bureau of Yangzhou City Bureau of Agriculture and Forestry, at the same time sent samples to Nanjing testing, the results confirmed as double infection of bacteria and viruses. The disease is manifested as a dramatic increase in the amount of death after pulling the net, up to 7 to 10 times the normal wear and tear. Twenty acres of ponds up to a maximum of 100 kilograms of dead weight, seriously dampened the breeding enthusiasm of farmers. First, the symptoms and causes of the disease?