一、放养鱼苗鱼种什么密度最合适 合理的放养密度是培育膘肥、健壮大鱼种的重要措施之一。 鱼苗下塘的数量:家鱼苗一般每亩19万尾左右,鲢、鳙鱼还可适当多一些,草鱼可适当少些,肥水塘可适当密些,新塘、瘦水塘应适当稀些。鱼苗饲养20天左右,便长到3.3cm左右,称夏花鱼种。这时就要进行第一次分塘,一般每亩放1—1.5万尾。经30天左右的培 First, the stocking fish What kind of fish density is the most appropriate reasonable stocking density is to cultivate fat, sturgeon, one of the important measures. The number of ponds under the fry: fry generally about 190,000 per acre, silver carp, mackerel may also be more appropriate, less appropriate grass carp, fertilizer pond may be appropriate to close some, Xintang, thin reservoir should be appropriate dilute. Fry raising about 20 days, they grow to about 3.3cm, said summer flower species. At this time we must conduct the first sub-ponds, generally put 1-1.5 million per mu. After about 30 days of training