虹鳟从上浮稚鱼开始至大规格鱼种阶段,其培育技术难度较大,为虹鳟养成的重要阶段。其生长成活因环境条件、水温、饲料和养殖技术而有较大差异。我国各地虹鳟苗种的生产技术水平不一,目前苗种成活率仅10～15％(牛鲁祺1987)。我们试图通过本试验,研究苗种生产中存在的问题,为提高我省虹鳟养殖技术及其经济效益,积累和 Rainbow trout from the beginning of juvenile fish up to the stage of large-scale species of fish, its cultivation technology is more difficult for the rainbow trout to form an important stage. Its growth and survival due to environmental conditions, water temperature, feed and breeding technology and have a greater difference. The production technology of rainbow trout seedlings varies in different parts of China. At present, the survival rate of seedlings is only 10-15% (Niu Luqi 1987). We tried to pass the test to study the problems in seed production, in order to improve rainbow trout farming technology and its economic benefits, accumulation and