放养大规格鱼种,是池塘高产养鱼的一项重要措施。大规格鱼种的抗病和抗敌害能力强,成活率高,可以充分利用各种鱼类的最速生长期。但规格究竟多大最适合,要依据不同鱼类的生长规律确定。 一、青鱼。最好放养0.25～0.75公斤/尾或0.5～1.0公斤/尾的二龄鱼种,这样的规格,能大量摄 Stocking large size fish species is an important measure for high-yielding fish in ponds. Large-scale species of disease resistance and anti-predatory ability, high survival rate, you can take full advantage of the fastest growing species of fish. But exactly how the most suitable size, according to the growth of different species of fish to determine the law. First, the herring. Best stocking 0.25 ~ 0.75 kg / tail or 0.5 ~ 1.0 kg / tail of the second species of fish, such a large number of photos