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近 2 0年来水产养殖业迅速发展 ,工业化高密度养殖规模日益扩大 ,与此同时 ,未处理养殖废水和工业、生活污水的排放使近岸海水受到严重的污染 ,养殖生态环境遭到破坏 ,致使养殖业病害频繁发生。目前主要使用广谱抗生素来控制病害的发生 ,而过度的使用抗生素药物不仅使细菌耐药
In the recent 20 years, the aquaculture industry has developed rapidly and the scale of industrialized high-density aquaculture has been expanding. At the same time, untreated aquaculture wastewater, industrial wastewater and domestic sewage have seriously polluted the coastal waters and destroyed the ecological environment for farming. As a result, Aquaculture diseases occur frequently. At present, the main use of broad-spectrum antibiotics to control the occurrence of disease, and excessive use of antibiotics not only bacterial resistance