Technical requirements for cage culture of carp with high yield and water saving

1. Cage placement: the water where the cage is placed should be a water body with fertile water quality, shelter from the wind and sun, flat bottom, moderate depth (4-7 meters all the year round), no pollution, suitable water temperature, no flood, close to the village or farming, and a large area of the reservoir bay.

Raising carp in cages

two。 Cage structure, placement:

⑴ cage structure: the cage is usually sewn into a closed or open box with 6 pieces of mesh, which is rectangular (square) and fixed on a frame tied up with metal or square wood strips. Fish culture cage, the mesh is 1 cm, the size is 20Mui 30 square meters. Fish cage, mesh 2cm, about 60 square meters.

⑵ cage placement: the cage form is divided into closed floating type, open floating type, open fixed type and so on. Open floating type, it is necessary to add a block around to prevent fish escape. Open fixed type, must be about 0.8 meters above the water, all cages should be firmly placed.

3. Cage culture

Screening and disinfection of ⑴ fingerling: large size fishes cultivated should be trained first, then counted in bundles, raised in boxes according to specifications, and put into full at one time.

⑵ fish into the box: before entering the box, the fish should be disinfected and washed with 30.4% salt water for 5 minutes, or with 5% salt water and 0.5% baking soda solution, depending on the tolerance of the fish. The size of the free-range carp is 4cm and weighs about 3g. The stocking density is 800 × 900 tails / square meter.

⑶ cage culture of fish: cage culture of carp adult fish, the ideal specification for stocking fish species is 50 grams per fish, generally 30 grams per fish, with a stocking density of 5 kilograms / square meter.