罗氏沼虾高产高效养殖技术试验

在总面积为８８６７ｍ＾２的３口池塘中进行了罗氏沼虾高产高效养殖试验。全年放养２批虾苗共１１０万尾，平均放苗１２３尾／ｍ＾２；共收获罗氏沼虾７６４１ｋｇ，平均８６１７．５ｋｇ／ｈｍ＾２；共消耗饲料１６５００ｋｇ，饲料系数２．１６；总产值３１１６３０元，平均产值３５１４６２．４５元／ｈｍ＾２，总利润１６５３７３元，平均利润１８６５１０．９０元／ｈｍ＾２，利润率为１１３．０７％。本试验获得高产高效的结果证明了所采取的技术措施是可行的。

Culture techniques of Macrobranchium rosenbergii for high yield and profit

Culture technique of %Macrobranchium rosenbergii% for high yield and profit was studied in 3 ponds with total area of 8867 m+2 for one year. These techniques include increase in stocking density, establishment of overwintering green house for earlier stock and later harvest, fry nursing in one pond and culture in 3 ponds, prawn sale in late winter for higher price, and stocking 2 crops in one year. The total prawn production of 7641 kg, or 8 617.5 kg/hm+2 was obtained, and the feed conversion ratio was 2.16. The total output value was 311 630 yuan, or 351 462.45 yuan/hm+2, with total profit of 165 373 yuan, or 186 510.90 yuan/hm+2, profit rate of 113.07%. The high yield and profit achieved in the experiment indicated that the techniques adopted in the experiment was possible.