Jianou is an excellent carp species which has been selected and cultivated as a primitive parent with specific purse red peony and Yuanjiang wolfberry. Jianou is a fast-growing species and its growth rate is significantly faster than that of various hybrids and other catfish. Jianou meat is good, nutrient content is higher than other carp, disease resistance and adaptability. The successful cultivation method of Jianye has been extended to 27 provinces, districts, and cities. Now the method of aquaculture cage culture that has just emerged is described below.
First, the selection of aquaculture sites The waters of cages should be placed in water, fertilizer, pollution, and water temperature. There is no flooding in the Bay, and it is sheltered from the sun. The bottom is flat and the depth is moderate.
Second, the structure of cages Net cages are usually 6 pieces of nets made of closed or open box sewn, was square or rectangular, surrounded by a frame with Phoebe or square wooden bar tied into. Net cages for cultivating fish species have a mesh size of 1 cm, and each piece has a net size of 28 m2 to 32 m2. Net cages for raising fish have a mesh size of 2 cm to 3 cm, and each piece of net clothing is generally 60 m2. About square meters.
Third, the net cages for the placement of cages are closed floating, open floating, open fixed and so on. Open floating cages must be prevented from escaping from the net; open fixed cages must be about 0.8 meters above the water surface. All the cages must be firmly placed. The small cages are flush with the water surface or slightly above the water surface. There are feeding pipes and shade cloths on the cages.
Fourth, sifting and disinfection of fish species Select 4 cm to 5 cm of large-scale summer flowers to build oyster species, first by pulling the net to exercise, and then ties up the box, according to the specifications of the box feeding. Fish species must be sterilized before entering the box. The method is to use 3% to 4% of salt solution dip fish species for 5 minutes, or use 5% saline and 0.5% baking soda solution dip fish species, depending on the degree of tolerance of the time depending on the species.
V. Specifications and Density for Storage Boxes The specifications for stocking and storage are 4.3 centimeters to 5 centimeters and weigh 3 grams to 5 grams. The stocking density is 800 to 900 per square meter (net mouth). For cage culture, the ideal size for rearing fingerlings is 50-70 grams of tail weight, and stocking density is 5 kg-10 kg per square meter (net), or more.
Sixth, feeding and managing cages Aquaculture and aquaculture are generally fed artificial diets, mainly with compound feeds. When the fish species enter the box, they begin to be domesticated, and it is better to feed them in small quantities. The grain size of the feed is moderate, which not only guarantees a reasonable and complete nutrient content but also has a size and palatability.
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