一、放养要早因为鱼种换了一个新环境,要有一段适应时间,早放养,就能在天气转暖后立即吃食,延长生长期。在放养鱼种时,一定要选择好天气,阴、雨、雪天都可能使死亡率增加。二、苗子要好放养的鱼种一定要精心选择,首先是鱼种体质要好,鱼体肥满,体形正常,大头小身子的鱼不能要,鳞 First, the stocking As early as the fish for a new environment, there should be some time to adapt, early stocking, you can eat in the warm weather, to extend the growing season. In stocking fish species, be sure to choose the weather, overcast, rain, snow may increase the mortality rate. Second, the seedlings should be properly stocked species must be carefully selected, first of all the fish species constitution is better, body fat, body shape normal, small body of small fish can not, scales