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许多大中型水库水面中都有丰富的浮游生物,有机腐屑以及细菌等天然饵料资源,适合于鲢鳙鱼生长发育,是发展网箱养鲢、鳙鱼的良好水域。近年实践证明,大中型水库利用“放牧式”网箱养鲢、鳙鱼。可不用投喂任何商品饲料,也不施肥,只要做好日常管理工作,即能获得高产。一般每亩网箱产鲢、鳙鱼10000公斤,经济效益极为显著。现将“放牧式”网箱养鲢、鳙鱼的方法介绍如下:
Many large and medium-sized reservoir surface are rich in plankton, organic rot crumbs and bacteria and other natural food resources, suitable for growth and development of silver carp and bighead carp, is the development of cage silver carp, catfish good waters. In recent years, practice has proved that large and medium-sized reservoirs use “grazing” cage to raise silver carp and bighead carp. No need to feed any commercial feed, no fertilizer, as long as the daily management of work, that is, to get high yield. Common cage per mu silver carp, mandarin 10000 kg, the economic efficiency is extremely significant. Now the “grazing” cage feeding silver carp, mackerel method described below: