Taihu whitefish breeding

Taihu whitefish live in the middle and upper layers of open water areas and feed on other small fish. It grows rapidly and has a large body size. Common individuals range from 2 to 2.5 kilograms, with the largest being up to 10 to 15 kilograms. Taihu whitefish breeding adult fish yield up to 230 kg per mu, mu production value of 7000 yuan, mu cost of 2600 yuan, mu net income of 4,400 yuan. Pond conditions: Adequate water, fresh water, flat bottom, and less silt. The pond area is generally about 2-15 acres. The depth of water is 1-2 meters, and the pond radon is more than 0.5 meters above the flood level. Clearance in Qingtang: About 15 days before stocking, the ponds should be disinfected with clear ponds. The whole pool should be splashed with lime into lime milk. The amount of water used should be between 10 and 100 centimeters (10-100 centimeters) per mu, which will kill potential pathogens and other enemies. Harmful creatures. After the drug disappears, fish can be released after injecting more than 50 cm of river water. Seed stocking requirements: 200-400 kilograms per mu, 800-1000 acres of a year-old species of fish, fish species specifications in more than 5 cm, preferably 10-20 cm; acre fish size below 500 grams of second-infant fish 400-500 tails, basically the same size and size. Adapted to take care of flowers, acre 50. Scientific feeding: feeding chilled fish and live bait fish is required. The live bait is required to be 1/3 to 1/5 of the length of the rearing fish, and the above layers of fish are better, such as white locust and flower locust. Squid, whitefish and other small fish. 1 Feeding chilled baits. Feeding the fish must go through a domestication process. Feed the chilled fish to a broiler at 3-5 cm, 4 times a day, and feed the chopped chilled fish at a height of 10 cm. There are two feeding methods: one is fixed-point feeding, which is limited to two hours after each feeding; the other is artificial throwing and thrown into the Taihu Lake Whitefish to stop eating. Artificial breeding Taihu whitefish under normal circumstances, the feed coefficient is about 4. 2 Feed live bait fish and feed it once every 5-7 days. The feeding amount should be 1-2 times of the amount of Taihu whitefish pond. Feed it immediately after feeding. Feeding time must be postponed. Feeding management: The first phase, after stocking, to April, the specification is within 20 cm, mainly relying on cultivating plankton, and the water quality is required to adapt to the growth of plankton. In the second stage, after the plankton in the pond has finished eating, it is necessary to manually feed the palatable bait. What kind of bait is to be fed and what kind of bait should be used for domestication. The bait specification should be small to large, and the palatability should be good. The transparency of water quality in the rearing process should be controlled at about 30 cm. When the water quality is too strong and the food intake of fish is reduced, new water should be injected in time to regulate the water quality, and oxygenation measures such as aerators or water pumps should be started to prevent fish from lacking oxygen. Disease prevention and control: Parasitic diseases should be paid attention to, especially the small melon insects and dactylonosis are often concurrent, ferocious, spring, autumn and winter have occurred. Prevention of parasitic diseases, in addition to doing pond lime clear pond, fish drug dipping, the aquaculture process should be regularly carried out drug prevention, elimination of net protozoa, internal use of drugs available insecticidal.

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