春夏之交,是鱼病的高发期,此期的鱼病防治做得好,全年的养殖就成功了一半,因此应十分重视。一、春夏之交发生鱼病的原因1.气温不稳定性。春夏之交,气温上下起伏大,早晚温差大,虽然水起到一定的缓冲作用,但因春季水浅,水温变化幅度还是比较大的。2.有毒物质。冬季气温低,淤泥中 Spring and summer, is the high incidence of fish disease, fish disease prevention and control during this period well done throughout the year on the success of breeding half, it should be very seriously. First, at the turn of spring causes of fish disease 1. Instability of temperature. At the turn of spring and summer, the temperature fluctuates greatly, and the temperature difference between morning and evening is large. Although the water plays a certain buffering role, the water temperature is still relatively large due to the shallow spring water. 2. Toxic substances. Low winter temperatures, silt