近几年来,上市的水产品多了,鱼价下跌了,农村养鱼户的生产效益普遍降低,有的甚至亏本。但有一些精明的养鱼户却看准市场日益增长的对名特水产品的需求,积极放养如下四种鱼,效益照样很好。他们的做法: 一是套养“吃鱼的鱼”。即在池塘中套养美国加州鲈鱼、本地鳜鱼、乌鳢、月鳢等肉食性鱼类。这样,既利用其食性清除了池塘中的野生小杂鱼,从而避免小杂 In recent years, many aquatic products have been listed, the price of fish has dropped, the production efficiency of fish farmers in rural areas has generally dropped, and some have even lost money. However, some shrewd fish farmers spotted the growing demand for famous fish products in the market and actively stocked the following four types of fish, so the benefits were still good. Their approach: First, raise “fish for fish.” That is, raising American carps perch in the pond, local anchovy, clam, crayfish and other carnivorous fish. In this way, both the use of its diet to clear the ponds of wild trash, so as to avoid miscellaneous