What are the key technologies for seine fish farming

Our province is located in the Huang-Huai River Basin. The area has a dense river network and abundant water resources. As a breeding mode for large-surface aquaculture, seine fish farming has been welcomed by people everywhere and has achieved certain economic benefits. The key technologies are now described as follows: water. The water flow is slow and the maximum flow rate is below 0.3 meters/second. The water depth is between 1.5 and 3 meters. The water level difference is within 1 meter, far from the channel and the pollution source. 2. Wai. Double-layered and double-rowed fences are used, and the bottom net is fixed with stones and anchors. Between the two layers of nets, anti-escape observation cage whistle should be set. The intensive culture of high-yield areas requires the use of double-sided cage nets, net height is 2 times the maximum depth, fish net selection mesh size of 1.11 cm to 1.33 cm of polyethylene mesh, into the net size of the selected mesh 1.90 cm to 2.22 cm polyethylene mesh. 3. Species. Choose a fish species with a healthy body and consistent specifications. The size of the grass fingerlings is 200-250 g/tail, the size of the fingerlings is 500-1000 g/tail, the size of the head fingerlings is 50-100 g, and the species of the fingerlings are Specifications are 25 to 75 g/tail, carp species are 50 to 100 g/tail, carp species and carp species are 150 to 400 g/tail. 4. bait. With fresh aquatic plants and snails, supplements concentrate. The “two-headed, middle-green” feeding model was adopted, and timing, positioning, qualitative, and fixed-point feeding methods were adopted.

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