Should pay attention to choose fresh water, no pollution, wide water surface, water level stability, transparency more than 60 cm, dissolved oxygen 5 mg / l or more, more than 3 meters deep, sheltered from the sun, there are micro-flowing lake pool or reservoir Bay cove every year. The cage uses a single layer polyethylene non-section mesh, the mesh eyes should be less than 1.5 cm; cages of 1-28 m2 should be made, preferably 451.8 m, 441.8 m and 431.8; cages should be open for use. The bamboo is made into a frame and doubles as a floater. The net frame with a diameter of 6.5 mm is used as the bottom frame and doubles as a sinker. The stones can also be suspended in the bottom corners of the cage to form the box. The upper mesh of the cage should be over 20 cm above the water surface. The cages are arranged in a "one" shape, with one squid cage and two bait fish cages, strung in a row, with a box unilateral length of one cage and a row spacing of 5 meters, set at a position perpendicular to the direction of flow. To facilitate the exchange of water in the tank.
Second, fish species stocking fish species
It is better to use mouth sticks, which require healthy and disease-free and uniform specifications. Individual specifications should be greater than 3 cm, preferably 50-100 g/tail. In order to prevent fish species from stabbing each other, large-sized fish species should be stocked in winter; Stocking density is generally 10 to 35 tails per square meter. Before the fish is put into the box, each square meter of water body is soaked with 0.1 ml of worms or 10 grams of potassium permanganate solution for 10-15 minutes to kill parasites or bacteria on the fish body. The baitfish are preferably low-value fish such as whitefish, squid, tilapia, and small junk fish, and are cultivated from summer flowers. Stocking densities range from 6000 to 8,000 per square meter, and new fish feeds are added at any time depending on feeding needs. It is better to feed in the early morning or early evening and require live fish as bait. The amount of feeding is about 20 times of the amount of carp. The specifications are about 50% of the body length of the carp, and the water temperature for feeding is generally 25°C or more. Feed 1 to 3 days, 20 to 25°C 1 time every 7 days, 10 to 20°C 1 to 10 to 15 days, and 10°C to 20 feeds every 20 days.
Third, management network box
Eel raising fish, fresh water, less incidence, but also in the breeding process are also susceptible to trichomonads, slugs, rickets, gill rot disease. Therefore, water peanuts, water hyacinths, etc. are to be placed in and around the cages for the inhabitation of squid, and strong chlorine and fish and insects are used around the cages during the high temperature season. In the onset of illness, the four corners of the cage can be suspended and a medicated bath treatment is used. Usually wash once every 10 to 15 days. And do a good job of preventing wind waves and squid breeding in time according to the individual's growth, in order to facilitate survival.
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