通常北方养鱼是春季投苗,入冬时捕捞。按这个程序养鱼,秋季应做好如下管理,催鱼膘。一、合理投料这个时期投料的重点,应放在底层吃食鱼类的催膘育肥上。所以对投喂的青、精饲料必须做适当的调整。一般从9月中旬开始,在投喂青料的同时,还需补充豆饼。玉米面、糠麸等精料,也可将煮熟的菌糠或糠麸混合投喂,喂量按鱼体重的5%投 North fish are usually spring seedlings, fishing when winter. Fish according to this procedure, the following should be done in the fall management, fish catfish. First, a reasonable feeding The focus of this period of feeding, should be placed on the bottom of eating fish reminder fattening. Therefore, feeding green, refined feed must be properly adjusted. Generally from mid-September, feeding green material at the same time, need to add bean cake. Cornmeal, bran and other fine materials, but also cooked bran or bran mixture feeding, the amount of fish fed by 5% by weight