First, the production and installation of cages. Net cages are made of 32- and 34-polyethylene nets or pure white spun yarns. The cage specifications are 3 meters 2 meters 1.5 meters, 2 meters 2 meters 1.5 meters. The density of the cage is set to be 1/3-1/2 of the total surface area of ​​the water, the depth of the cage is 50-80 cm, and the height of the water is not less than 50 cm. The cage is fixed with a wooden stake and iron wire, and a bamboo pole can also be used. Tight, downscale slack. 7-10 days before planting, the cages are immersed in water to make them adhere to algae and avoid scratches and scratches when the squid enters the box. In order to transplant aquatic peanuts, cattle grass and other aquatic plants, the area covered by the tanks is about 90% of the cage area.

Second, strict disinfection of clear pond. After the cages are installed, clear lime is used to clear the pond 10-15 days before planting. The amount of quicklime is 75-100 kg/mu for dry clear ponds and 150-200 kg/mu for clear ponds; Before the soaking and sterilizing of aquatic plants with 2-3% salt or 10ppm bleach, remove the leeches.

Third, carefully select the species. The main objective of the two-year breeding model is to culture large-scale larvae and increase the efficiency of farming. Therefore, it is necessary to choose the deep yellow-spotted moth with high weight gain multiple times for breeding. After two years of breeding, these species can reach a weight of 200-300 grams/tail.

Fourth, reasonably determine the stocking density. (1) Net cages that are not divided into boxes within two years: One is enough for one species and stocking density is 200-220/carton. If there is a deficiency, at the end of the year or March-April of the second year, select the fine weather, and make appropriate adjustments and supplements to the specifications and density of the box according to the specifications of the box carp and the survival conditions. Protection stocking density is 200/carton. (2) In the second year, the cages for the binning are: Feeding is started in the middle and early March in the second year, and clear weather bins are selected one month later. Stocking specifications 35-50 g / tail, stocking density 200 / box about. In the same cage, the specifications are the same, individual differences are less than 10 grams, and one foot is enough.

Fifth, do a good job tame food and feeding. Carp is extremely sensitive to environmental changes and food odors. When the natural wild species are purchased in the market, they must be fed and domesticated after entering the box. Ingestion and domestication involves two phases, namely, domestication and transdigestion. (1) Opening acclimation: After the quail species enters the box, the feeding is started on the evening of the fourth day. The feed is placed on the water in the box and the feeding amount is 1% of the weight of the bream, and when the amount of feeding reaches 5-6% of the fleas weight At the time, the opening acclimatization is completed. (2) Switching to domestication: After the opening is acclimated, add 5-10% of formulated feed to the animal fresh feed. After the mullet adapts and fully feeds, increase the amount of compound feed by 15-20% and the animal feed by 1 each. In kilograms, 0.2 kg of compound feed is added until it meets the predetermined ratio of animal feed and compound feed. (3) Feeding amount: After successful ingestion and domestication, it enters the normal management stage. Daily bait rate: fresh bait 7-10%, or 1-3% of compound feed, once a day, specific feeding temperature, water temperature, water quality, left bait, feeding speed and other flexible control.

Sixth, strengthen wintering management. Raise large-scale squid, winter management is the key. First, no special circumstances do not turn boxes and binning operations; the second is to ensure the depth of the water depth, thicken the water in the box; third is to prevent theft and animal damage. Weasels and mice especially like to hunt salmon in cages. In addition, check whether the cage is damaged and improve it in time.

VII. Start eating early in the second year. In the middle and early March of the following year, when the water temperature reached 15°C, the carp was started to be fed. In the second year, no direct domestication is required. Feed is directly fed to the feed. However, due to the fact that the squid has been in winter, its physique is relatively weak. At the beginning of feeding, some or all of the squid-like fish or quail may be fed with fresh bait to facilitate induction. The squid started eating as soon as possible to restore its constitution. After entering the normal rearing, the feed is fed according to the previous year.

8. Do a good job of disease prevention. The carp rarely gets sick in nature, but under artificial rearing conditions, the ecological conditions have changed due to the high culture density. Especially in the early stage of breeding, the carp is prone to disease in restoring strength and adapting to the environment. Therefore, in management, one should pay attention to improving the water environment of ponds and cages on the one hand, and pay attention to the palatability of feeds on the other. In addition, in the months of July, August and September, quick lime and disinfectants should be used to disinfect ponds and cages alternately every 15 to 20 days, and baits should be fed every 15 days. Healthy growth.

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