池塘精养河蟹技术研究

Studies on Technique for Intensive Culture of River Crab in the Pond

对池塘精养河蟹技术进行了试验研究，结果：河蟹成活率５９．５％，平均个体重８３．ｇｇ，平均个体增重倍数２．８，折合亩产１０１．１ｋｇ；混养鲢鳙亩产９０．９ｋｇ，平均尾重７５０９。每亩盈利２３４３．６０元，１９９２年鉴定认为，本研究成果属山东省内先进水平。

The experbent was made for the technique in intensive culture of the river crab in the POnd. The results are as follows: the crab survival rate is 59. 5 % lthe average indivedual weak is 83.gg ithe weight of each crab increases by 2. 8 thoeslthe per mu output is converted into 101. Ikg. The Per wu yi6ld of polyCultllre Of the silver carp ac ￣ is 90. 9kg with the average individvai weest of 7509. The net Profit per mu is 2343. 60 ￣. In 1992,the eXperbental achievement appraised by expertS ho met the advance(l level in Shandong Wovince.