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1、择优分段,适当稀放将鱼种进行拉网筛选,选出不同规格的鱼种,将体长16—23cm的鱼种放入成鱼生产塘去套养或单池饲养;将小于15cm的鱼种分别进行稀养,较小的实行强化培育。一般以深1.5m的池塘,亩放鱼种3000—6000尾为宜。 2、保证充足的饲料,加强精心饲养以鲢、鳙鱼为主的鱼池,除看水施肥,保证水质良好以外,还要适时适量投喂精饲料,一般可在上午九时至下午四时左右按每千尾鱼种每次0.3—0.5kg的量投喂。假如以草鱼为主的鱼池,应该先投喂浮萍、水草、旱草等青料,而后再投喂精料。
1, preferential segmentation, the appropriate dilution of the fish species to pull the net screening, select the different specifications of the species, the body length of 16-23cm into the fish production ponds to nursery or single pond feeding; will be less than 15cm of fish were thinning, the smaller implementation of intensive breeding. Generally 1.5m deep ponds, acres of fish species 3000-6000 tail is appropriate. 2, to ensure adequate feed, strengthen the intensive feeding of silver carp, bighead carp fish pond, in addition to see the water fertilization, to ensure good water quality, but also timely and appropriate feeding of refined feed, usually in the morning 9:00 to 4:00 pm Feed per thousand fish species 0.3-0.5kg. If grass fish-based fish ponds, duckweed, aquatic plants, dry grass and other green materials should be fed first and then fine feed.