尼罗罗非鱼具有生长快、抗病力强、不需要高蛋白饲料等优点。目前已成为世界上最广泛的养殖鱼类之一,也是我省池塘养鱼的重要搭配品种。但是,尼罗罗非鱼抗寒能力差,必须进行越冬保种。不少地区和单位由于缺乏造价较高的越冬设备,鱼种来源困难,阻碍 Nile tilapia with fast growth, disease resistance, do not need high protein feed and so on. It has become one of the most extensive farmed fish in the world and is also an important collocated variety of pond fish farming in our province. However, the cold hardiness of Nile tilapia is poor, so it is necessary to protect the winter. In many areas and units, because of the lack of costly overwintering equipment, the sources of fish species are difficult to obstruct