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近几年来,由于中华绒螯蟹苗源紧张,成蟹产量锐减。为了充分利用有限的苗源,提高其养殖产量和效益,1987～1988年我们会同有关部门,在10个不同点上,分别采取网围培育、网箱培育、土池培育和水泥池培育等四种形式,对幼蟹的中间培育进行丁比较试验。1.网围培育网围设置在水流畅通的深水荡滩水域,面积为4.25平方米,周围用毛竹支撑固定,试验用的网围设计有底网,与下网同时埋入水
In recent years, crab production has plummeted due to the shortage of mitten crabs. In order to make full use of the limited source of seedlings and improve the yield and profit of their breeding, from 1987 to 1988, we will take four kinds of cultivation, net cage cultivation, earthen pond cultivation and cement pond cultivation respectively at 10 different points from the relevant departments Form, the middle of young crabs Ding small comparison test. 1. Mesh nurturing Wai Wai set in the smooth flow of deep water beach area, an area of 4.25 square meters, surrounded by the use of bamboo fixed support, the design of the network with a trial of the end of the network with the net, and the net at the same time buried in the water