June, 24, accompanied by Ms. Gao Qiping, Aquaculture Research Institute Director, Board Chairman Liu Hanyuan paid a visit to the fish farms at Shuangliu County for the inspection and acceptance of the pro-environment fishery project "365 healthy farming model – ’deep ponds for low pollution discharge’", led by Senior Technical Consultant Mr. Wu Zongwen. Mr. Liu gave credit to the research achievement, and made directions to carry on in-depth researches in pro-environment fisheries.

To develop low-carbon farming, and carbon sink fisheries, specifically, avoid endogenous and exogenous pollution, the Project leader Mr. Wu creatively designed a pro-environment pond system with low pollution discharge, combining deep pond(3-5 m),seepage-proofing thin film, silt-water separation pond, solid-liquid separation pond, artificial wetland, as well as co-existence of fish and vegetables. The system discharges pollution every 3-15 days/time, and can save over 80% energy and labor consumption on silt treatment.

The result of the trial showed, the income from an area of 30 mu (about 19,980sq.m.) exceeded RMB￥400,000, with an averaged income of over RMB￥10,000. The sale proceeds of loach fries farming/mu exceeded 50,000 from February – May. Additionally, the comparative experiment showed, the fish pond using bottom blowdown has a faster growth rate and lower disease incidence rate. The expected proceeds could reach RMB10,000/mu and above.

During the trip, Mr. Feng Yunshu, the farmer from Dantu county reported the record: The input of 25kg of Tongwei 141 feed had yielded 39kg of southern catfish, i.e., a feed coefficient of 0.73. He concluded that Tongwei feed deserves its name. Chairman Liu congratulated on the achievement, and expressed his wish that the farmers could continue cooperation with Tongwei.