沙县地处闽西北山区,养殖水域丰富,主要养殖鱼类有草鱼、鲢、鳙、鲤、鲫等品种。近年来,随着养殖密度的不断增加,养殖环境条件逐步恶化,主要养殖鱼类的病害也越来越多,给养殖户造成了巨大的经济损失。笔者根据多年从事水产技术指导积累的一些成功经验,现就山区主养鱼类常见病害的防治方法归纳介绍如下,以供广大养殖户参考。 Shaxian County is located in the mountainous area of ​​northwestern Fujian Province, rich in aquaculture waters. The main farmed fish are grass carp, bighead carp, bighead carp, carp and crucian carp. In recent years, with the continuous increase of farming density, the environmental conditions of farming are gradually deteriorating, and the diseases of the main farmed fish are also more and more, causing huge economic losses to farmers. The author based on many years of successful experience in the aquaculture technology guidance, is now on the main method of prevention and treatment of fish farming in the mountain are summarized below, for the majority of farmers reference.