In the case of hairy crab, fish and shrimp polyculture for self-production and sale, after deducting crab seedlings, fish and shrimp seedlings, aquatic plant cultivation, feed, water and soil contract usage fees, labor and electricity costs, etc., the minimum breeding requirement is 15 acres per hectare. area, the average profit per mu can reach up to 12,000 yuan. Provided by Erli River Crab Breeding Base. For the polyculture technology of fish, shrimp and crab, please refer to /SNews_show.aspx?id=657amp; cid=43.