Wuyi Healthy Breeding Technology
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Second, prepare before restocking
1. Disinfect and drain the pool water in Clear Pond, remove excess silt, sew the whole pond, and freeze for 1-2 months. Ten days before stocking, 100 kg of dry lime was used per acre to clear the pond.
2, planting aquatic plants
In the middle and late April, aquatic plants such as Vallisneria, water hyacinth or water peanut are planted in the shallow water area around the pond. After the watergrass grows, the covered area does not exceed one fifth of the total area of ​​the water body. This can reduce the water temperature in the high temperature season and improve the water quality.
Third, fingerlings are stocked and reared by artificial breeding of black bream fish. The second-instar fish breeding time is generally 3-4 months, acre put 15-20 cm above the 1600-2000 fish species, the fish species with 3% -4% salt water before immersion for 5-10 minutes. Each mu can be used with 6-10 tail / kg flowers, white bream species (4:1) 100-200 tail, at the same time, and then with the large size of silver bream species 50-100 tail, so that they eat some residual bait.
4. After the bait domestication and feeding the fish ponds, the wild fish began to feed mainly on the fixed food table. After 7 days, it gradually began to domesticate the food pellets, and then the wild fish was used to make the fish pellets and granules. After the feed was mixed, it was evenly sprinkled on the food table. After 7-10 days, it was gradually converted into pelleted feed. After 15 days, pelleted feed was completely fed. Domestication must adhere to “timely, fixed-point,†and begin domestication within a week, feeding 3-4 times a day, and then control it 1-2 times a day. The daily feeding amount is generally 5%-8% of the fish's body weight, and the feeding amount is increased or decreased according to the growth and feeding conditions.
V. Water quality management Adopt comprehensive measures to control water quality. First, change the water frequently, in the early and late aquaculture, change the water every 5 to 7 days. In July and September, change the water every 3 to 4 days, changing the water every time, about 30 to 100 meters. Second, use biological materials. Preparations, such as the regular use of photosynthetic bacteria; Third, the timely opening of aerators, oxygen, aeration, and promote the bottom of the pool of hydrogen sulfide, ammonia and other harmful substances, to maintain the transparency of the pool water more than 35 cm.
Six, disease prevention and regular use of quicklime, strong chlorine and other pollution-free drugs Quanchiposa alternate use; season of onset, in the feed by adding a certain amount of allicin and vitamins made baits, continuous feeding 3-5 days. Through external use of oral administration, better preventive effects can be achieved.