在鱼种生产的整个周期中,越冬是一个至关重是的环节,鱼种能否安全越冬,直接关系到水产企业的经济效益和社会效益。因此,做好鱼种越冬工作意义重大。因为对鱼种越冬威胁最大的是鱼病,所以对病害的防治自然地成为越冬的关键。我们延寿县鱼种场是个只有25名职工、172亩鱼种池、70.5亩越冬池的小型国营企 In the whole cycle of fish species production, overwintering is a crucial link. Whether or not fish species can win the winter safely is directly related to the economic and social benefits of the aquatic products enterprises. Therefore, doing a good job overwintering species of great significance. Because the most threatening species of winter overwintering fish disease, so the prevention and treatment of diseases naturally become the key to wintering. We Yanshou County fish farm is a small state-owned enterprises with only 25 workers, 172 acres of fish ponds, 70.5 acres of wintering ponds