6鱼病防治黄颡鱼的鱼病防治应贯彻“防重于治、无病早防、有病早治”的方针。由于黄颡鱼人工养殖放养密度增加,在鱼种和成鱼养殖中,已发现了一系列的流行疾病,因此,必须加强鱼病预防。6.1预防措施1)彻底清理鱼塘,严格清塘消毒。2)鱼种放养时,用20￣30g/L的食盐水消毒。3)投放体 6 fish disease prevention and treatment of catfish disease prevention and treatment of fish disease should implement the “prevention and treatment as soon as possible, disease-free early prevention, sick early treatment” approach. Due to the increased stocking density of cultured yellow catfish, a series of epidemic diseases have been found in both fish species and adult fish culture and the prevention of fish diseases must therefore be strengthened. 6.1 Precautionary Measures 1) Thoroughly clean ponds and disinfect them strictly. 2) species stocking, with 20 ~ 30g / L salt water disinfection. 3) delivery body