众所周知,鱼类和所有动物一样,疾病的发生都有一定的诱因。为了减少因病造成的损失,做到丰产又丰收,必须着力抓牢以下八个关键环节,并贯穿整个养殖全过程。一、池塘清整环节:经过上一年度的饲养,鱼类排泄物、饲料残余等积淀其间,池底淤泥增厚,而利于细菌、病毒等的大量繁殖,硫? It is well-known that fish, like all other animals, have their own causes. In order to reduce the losses caused by diseases and achieve high yield and good harvest, we must focus on the following eight key links and run through the entire breeding process. First, the pond cleaning process: After the previous year’s feeding, fish excrement, feed residues and other sediments during the sediment thickening of the bottom, which is conducive to the proliferation of bacteria, viruses and other large, sulfur?