随着人们生活水平的不断提高，水产业的发展迅速向名特优新品种转化，在这种情况下，许多单位和个人盲目引进，给生产和管理带来一系列麻烦，造成经济损失，那么在新品种引进前必须要解决哪些问题呢？两年来，我们试验场先后引进了大鲵（俗称娃娃鱼），棘胸蛙，牛蛙，彭泽鲫等 With the continuous improvement of people’s living standards, the rapid development of aquaculture has transformed the famous and new superior varieties. In this case, many units and individuals blindly introduce them, bringing a series of troubles to production and management and causing economic losses. What problems must be solved before the introduction of new varieties? In the past two years, we have successively introduced experimental plants, such as giant salamander (commonly known as salamander), Spinoptera frog, bullfrog, Pengze crucian carp