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黑斑病是青虾人工养殖状态下最为常见的疾病之一。从虾苗到成虾,各个生长阶段均可感染此病,5～8月流行最甚。该病传染快,死亡率高。发病初期,虾体病灶呈较小的灰斑或褐斑,以后逐渐扩展,形成溃疡性黑斑。
Black spot is one of the most common diseases of the freshwater shrimp under artificial aquaculture. From shrimp to shrimp, all stages of growth can be infected with the disease, 5 to August the most popular. The disease is contagious and has a high mortality rate. Early onset, shrimp lesions were smaller gray spots or brown spots, then gradually expanded to form ulcerated dark spots.