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鱼病的发生一般分为感染期、潜伏期、发病期、死亡期四个阶段。但人们养鱼往往是在发病期至死亡期之间,即发现病鱼死亡后才开始用药治疗,由于绝大多数病鱼离群独游,不食草料,很难收到理想的疗效。药物一般只是对尚处于早期的病鱼凑效,而对严重病鱼将是无能为力的,给养鱼生产带来损失。那么,我们如何掌握在早期用药防治鱼病的时间呢? 今年,我在本县角山乡旭东村六子托组蹲点,对全组9口鱼塘15亩水面的草鱼发病史逐塘作了调查,发现该组历年口口鱼塘发生鱼病,每年因病死亡达800公斤以上,严重挫伤群众的养鱼积极性。他们对我说:“防治鱼病
The incidence of fish diseases are generally divided into infection, incubation period, the onset, the four stages of death. However, people often fish during the period from the onset to the death, that is, after the discovery of diseased fish died of medication, the vast majority of diseased fish outing alone, do not eat straw, it is difficult to receive the desired effect. Drugs generally only work for diseased fish that is still in the early stages and will be powerless for severely ill fish, resulting in losses to fish production. So, how do we master the early treatment of fish disease time? This year, I am in the county Jiao Shan Xutong six child care group to stay a month on the entire group of 15 fish ponds 15 acres of surface water grass carp was investigated by pond It was found that fish disease occurred in the mouth fish ponds of this group over the years. Each year, more than 800 kilograms of sick fish died, which seriously dampened the enthusiasm of the fish public. They said to me: "prevent fish disease