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秋季收购4cm左右的青虾,在暂养池内经3~4个月的强化培育,于元旦、春节起捕上市,青虾可增重一倍以上,并且售价提高,可取得良好的经济效益。一、暂养池选择和准备青虾暂养池面积以2,000~3,000m2为宜,池塘坡比为1∶2.5~3,水深1.5~2m,池底淤泥层不超过10cm。池底开浅水沟,并在?
Autumn purchase of about 4cm of freshwater shrimp in the holding tank within 3 to 4 months of intensive breeding, New Year’s Day, the Spring Festival from the market, freshwater shrimp can be more than double the weight, and the price increase, can achieve good economic returns . I. Selection and preparation of holding ponds The holding area of holding ponds for freshwater shrimp is preferably 2,000-3,000m2. The pond slope ratio is 1: 2.5-3, the water depth is 1.5-2m, and the silt layer at the bottom is no more than 10cm. Bottom open shallow ditch, and in?