江苏省建湖县颜单镇梅塘村陈焕才承包16亩水面，1996年购回1．5kg河蟹大眼幼体，当年出售早熟蟹226kg，1997年又收获商品蟹1705kg，其大眼幼体到商品蟹的成活率达10．2％；两年总收入22．of万元，扣除固定资产、人员工资等支出外，年获纯收入8．4万元，年亩平收入5250元，取得 Jianhuan County, Jiangsu Province, Jiangsu Province, Mei Village, Chan Huancai contracted 16 mu of water, 1996 repurchase 1.5kg crab eyed larvae, then sell precocious crab 226kg, in 1997 and the harvest of commercial crab 1705kg, its large eyed larvae to the commercial crab The survival rate of 10.2%; two-year total income of 22. of million, net of fixed assets, wages and other expenses, the annual net income of 84,000 yuan, the average annual income 5250 yuan mu, obtained