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农村很多成鱼养殖户,没有鱼种塘培育“斤两”鱼种。也有很多在养鲢鳙鱼为主的肥水塘,存在难养草鱼问题。我们调查了在这方面解决得好的养鱼户,现将成鱼塘分期套育鱼种、肥水塘养好草鱼,商品鱼均衡上市,亩产750公斤以上的经验介绍如下。一、早放养“斤两”鱼,分期套育鱼种。水深1.4米以上的池塘,1月上旬亩放养“斤两”鱼种(每尾0.15公斤以上)鲢鳙共90尾、17厘米至“斤两”草鱼250尾、4厘米以上鲤鱼100—150尾。2月上旬亩套养20厘米鲢鳙鱼种90尾;3月亩放养4厘米以上鲮鱼
Many adult fish farmers in rural areas, there is no breeding ponds, “jin two” species. There are also many in the feeding of silver carp bighead ponds, there is the problem of hard to keep grass carp. We have investigated the well-settled fish farmers in this area. Now we will introduce different types of fish into the fish ponds in stages. The grass ponds are well-fed in the fertile ponds. A balanced list of fish products is available. The experience of more than 750 kg per mu is described below. First, early stocking “jin two” fish, staged fish breeding. In the ponds with a depth of 1.4 meters or more, in early January, stocking “kg two” fingerlings (each 0.15kg or more) of silver carp and bighead carp a total of 90, 17 cm to “jin two” grass carp 250, 4cm carp 100-150 tail. Early February mushed 20 cm silver carp and bighead carp 90 species; March mu stocking more than 4 cm catfish