论文部分内容阅读
鱼类越冬期间处于“休眠”状态,极易感染各种病害,如果防治不及时,易引起大面积死亡,给养殖户带来巨大经济损失。根据笔者近几年的养殖经验,把淡水鱼类越冬期间常见病害及防治方法介绍如下: 1竖鳞病
During the wintering period, fish are in “dormancy” state, and are easily infected with various diseases. If they are not controlled in time, they will easily cause large-scale deaths and bring tremendous economic losses to farmers. According to the author’s breeding experience in recent years, the prevalence of freshwater fish winter disease and prevention methods are described below: 1 vertical scale disease