在目前农村养鱼户中,有的只在池塘里放养一种或两种鱼类,其实这是对水体资源的浪费,而实行鱼类混养,是高产增收的一项有效措施。当前所放养的草、鲢、鳙、鲤四大家鱼,都各自占有不同的水体空间和摄取不同饵料的生活习性。因此,进行鱼类混养能充分发挥池塘的生产潜力,达到高产增收的目的。 At present, among the fish farmers in rural areas, some only stock one or two kinds of fish in ponds. In fact, this is a waste of water resources and the practice of fish polyculture is an effective measure to increase the yield and income. Currently stocked grass, silver carp, bighead carp, common carp four fish, each occupy a different space for water and intake of different habits of food habits. Therefore, fish polyculture can give full play to the production potential of the pond to achieve the purpose of increasing production and income.