大水面养鱼具有水流畅通,溶氧充足,天然饵料生物资源丰富。因此,鱼类生长快,成活率高,优质鱼比重大,而且可以轮捕轮放,常年捕捞,均衡上市,既提高经济效益,又适应市场需求,充分发挥大水面渔业活鱼库的生态技术优势。但大水面一旦发生鱼病,治疗特别困难。如何控制大水面鱼病的发生,是防制的关键。 Large surface water fish with smooth flow of water, adequate dissolved oxygen, natural food rich biological resources. Therefore, the fish grow fast, the survival rate is high, the proportion of high-quality fish is big, and can catch round and round, fishing all year round, and listing on a balanced basis, which not only improves economic benefits but also meets the market demand and gives full play to the ecological technology of large- Advantage. However, in the event of a fish disease, the treatment is especially difficult. How to control the occurrence of large-scale surface fish diseases is the key to prevention and control.