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河蟹,学名中华绒螯蟹,是我国特有的水产珍品之一。因个体较大,味道鲜美,风味独特而久享盛名。河蟹是非常有养殖发展前途的名特优品种。我市放养面积从2003年的18亩增到2005年的550亩,增长了近30多倍。我市的河蟹养殖,主要是利用池塘主养,将扣蟹养殖成商品蟹,还可采取池塘套养、稻田养殖、大水面养殖等多种方式。一、池塘主养1、池塘条件：水源充足无污染、水草较多的池塘,面积3330—10000m~2为宜,池深1—15m,底泥10—15cm,坡比
Crab, scientific name mitten crab, is one of China’s unique aquatic treasures. Due to individual larger, delicious, unique flavor and long enjoyed a good reputation. Crab is a very good breeding and development prospects of the best special varieties. The stocking area of our city increased from 18 mu in 2003 to 550 mu in 2005, an increase of nearly 30 times. Crab farming in our city mainly uses the main culture of the pond to breed crabs into commercial crabs and can also adopt various methods such as pond nursery, paddy farming and aquaculture. First, the main pond 1, pond conditions: sufficient water pollution, ponds with more water, area 3330-10000m ~ 2 is appropriate, pool depth 1-15m, sediment 10-15cm, slope than