池塘培育扣蟹技术研究

On Technique for Rearing Coat-button Sized Crab in Pond

１９９３～１９９４年利用鱼池、稻田改造成的池塘培育中华绒螯蟹扣蟹，采取塑膜围栏防逃、调节水质、科学投饵、抑制幼蟹性腺发育等技术，５２亩鱼池改造池亩产扣蟹１０５ｋｇ，规格１００只／ｋｇ；５９５亩稻田改造池亩产扣蟹５５ｋｇ，规格１８０只／ｋｇ。两种池平均每亩经济效益５１８３元。１９９４年１０月专家鉴定认为，本试验填补了黄河三角洲地区中华绒资蟹苗种培育空白，达国内先进水平。

From1993 to 1994 in POnds transformed from fish POnd and paddy field were reared thelarvae of Eriocheir sinensis up to the young crabs(so called coat-button sized crab).In the rearing period,some techniques were taken,such as enclosing the pond with plastic membrane for preventing escape; controlling pond water quality;feeding with scientific method; inhibiting gonad development ofthe young crabs,etc.The result showed the Per mu yield of the young crabs in the ponds of 55mu,remade of the fish pond, was 105 kg with the sire of 100 md. /kg,and the Per mu yield of the youngcrabs in the ponds of 595 mu,remade of the paddy fields, was 55kg with the size of180 ind. /kg. ThePer mu economic benefit of two kinds of POnds was 5183 yuan on average.The achievement,apptaisedby expertS in Oct.1994, filled the gaps in technique for rearing the young crabs in the region of theYellow River Delay,and met the advanced level in our country.