山西省大同市水产技术推广站于２０００年在其所属的水产养殖示范基地进行了河蟹养殖试验。因为试验条件同其它养殖地区具有以下几个方面的特殊性：首先试验区所处的地理位置为塞北高寒区，具有气候寒冷、空气干燥等特点，造成河蟹生长期比别的地方短，水温在２０℃以上的时间 Datong City, Shanxi Province, Fisheries Technology Promotion Station in 2000 in its aquaculture demonstration base for crab farming experiments. Because the experimental conditions and other farming areas has the following aspects of the particularity: First of all, the geographical location of the experimental area of ​​Saibei alpine area, with cold climate, air-drying and other characteristics, resulting in crab growth period shorter than other places, the water temperature at 20 ℃ above the time