Background: China's lakes and reservoirs are dotted. These waters are affected by human activities. They are highly vegetative and rich in plankton. They are suitable for the cultivation of filter-feeding freshwater fish. However, because the water surface is too wide, fish are difficult to catch, so less It is used for fish farming.
Mode: Set cages in lakes or reservoirs with open water, richer water, water flow, water depth of more than 3 meters, and cultured filter-feeding fish such as cockroaches and clams. The Nutrients in the water body breed phytoplankton. The phytoplankton is eaten by zooplankton, and the floating swimming and the plants have become food for filter-feeding fish. Using this breeding mode, on the one hand, water resources of lakes and reservoirs can be fully utilized to increase fish production, and on the other hand, water quality of these waters can be purified to optimize the ecological environment.
Example: Jiangxikou Reservoir Fenyi Reservoir Area, Xinyu City, Jiangxi Province. This model has been used for 16 years. In 2002, the number of cages for fish farming has grown to nearly 10,000, and every 4m 7m 2m cages can be produced annually. 150 kg of fish, although the output is low, but because each person can control 100 cages (about 150 yuan per cage), no feed is needed for breeding, so the production costs are low and the profits are considerable.
Mode: Set cages in lakes or reservoirs with open water, richer water, water flow, water depth of more than 3 meters, and cultured filter-feeding fish such as cockroaches and clams. The Nutrients in the water body breed phytoplankton. The phytoplankton is eaten by zooplankton, and the floating swimming and the plants have become food for filter-feeding fish. Using this breeding mode, on the one hand, water resources of lakes and reservoirs can be fully utilized to increase fish production, and on the other hand, water quality of these waters can be purified to optimize the ecological environment.
Example: Jiangxikou Reservoir Fenyi Reservoir Area, Xinyu City, Jiangxi Province. This model has been used for 16 years. In 2002, the number of cages for fish farming has grown to nearly 10,000, and every 4m 7m 2m cages can be produced annually. 150 kg of fish, although the output is low, but because each person can control 100 cages (about 150 yuan per cage), no feed is needed for breeding, so the production costs are low and the profits are considerable.
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