Yanmenkou Town, jingshan county City, Hubei Province regards crayfish as the leading industry to increase farmers' income and get rich, and has developed a new way of characteristic breeding with "government leading, departments setting up a stage and the masses singing opera", which has become an economic growth point of rural economic development in Yanmenkou Town.

In order to speed up the development of crayfish industry, Yanmenkou Town offered 20,000 yuan to reward large lobster farmers in Yanmenkou Town, and organized aquatic products, credit, finance, taxation and other departments to formulate financial loans, financial support, aquatic products services, tax exemption and other preferential policies specifically for crayfish breeding and sales. China Aquaculture Network and Yanmenkou Town Aquatic Service Center also do their best to provide services, organize crayfish farmers to visit and study and conduct technical training, and also conduct technical training for problems encountered in production.

The culture area of crayfish in Yanmenkou Town has reached 83 1 1 mu, the estimated output is 1666 tons, and the output value is16.62 million yuan. This alone can increase the per capita income of farmers in Yanmenkou Town in 50 yuan.