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大菱鲆苗种刚刚入池养殖时,为了节省电费、药费、水费、人力,也为了便于集中管理,放养密度往往非常大,一般在400尾/m~2左右。随着大菱鲆苗种的生长,鱼体的体长、体重在不断增大,必须要减小养殖密度(养殖密度过大,养殖生态条件无法满足鱼类的生长要求,大菱鲆会发病死亡),将原本在一个水泥池中养殖的大菱鲆苗种一分为二或者一分为三,稀疏到几个水泥池中进行养殖,生产实践中将这个过程称为大
Turbot seed just into the pond farming, in order to save electricity, medicine, water, manpower, but also for the convenience of centralized management, stocking density is often very large, usually about 400 / m ~ 2. With the growth of the turbot species, body length and body weight of the fish are increasing, it is necessary to reduce the breeding density (breeding density is too large, breeding ecological conditions can not meet the growth requirements of fish, turbot will occur Death), the originally planted in a cement pool turbot breeding in half or divided into three, sparsely populated several cement ponds, the production practice of this process is called large