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Pond raising red dragonfly technology
Hung Hom is a trout species artificially bred and has a promising market. The technology for introducing red locust in ponds is now described as follows: 1. Pond conditions. For the ponds cultured in red leeks, the area of ​​the pond mouth is generally required to be 5-8 mu, the pond depth is 2.8-3.0 meters, the slope of the pond wall is 1:2.5-3.0, and the effective water storage depth is 2-2.5 meters. High-yield intensive culture ponds need to be equipped with aerators with a power of 1.5 kW/3-5 mu. Second, fish stocking. Before the fish species are stocked, clear ponds should be cleared of drugs in selected ponds to kill pathogens and predators. In order to improve the survival rate of the culture and the market specifications, fish species should be released in winter. Stocking densities generally range from 1,000 to 1,500 per kilogram per kilogram of 30-50 species of fish, and the equivalent of spring and spring (4:1) spring fish species, with 250-300 tail per acre. When fish are stocked, mix and bath with 3% saline and 1010-6 potassium permanganate solution for 10-15 minutes. Third, the bait feed. For the ponds that raise red earthworms, the feed protein content is required to be over 30%. The daily feed rate is 1-1.5% for April-May, 2.5-6% for June-August, and 2-year for September-October. 1.5%, of which, some green feed can be fed in appropriate amounts from June to August. Feeds should be fed on a fixed basis, and each pond can have 3-5 food counters. Daily feeding 1-2 times, the specific amount of feeding, according to the weather and the actual eating conditions of the fish to master, generally slightly before the second feeding is appropriate. Fourth, water prevention. In the production season, regular addition and exchange of new water are necessary for the growth of red peony. In summer, fill fresh water once every 10-15 days. Each time you add new water is 20-50 cm. When changing the water, take the first row of the first row, that is, first drain from the bottom of the pond, and then add water to the pond. Adding water for replacement should be performed at noon. At the same time, adhere to the normal boot 1-2 hours at noon on sunny days. Water quality management, in addition to the good fish before the pool off the drug bath, every 10-15 days during the breeding Quanchiposa strong chlorine once; drug concentration of 0.210-6-0.310-6. In the high temperature season, add kirshine and other internal medicines in the feed at a dose of 100 grams per 1,000 kilograms of fish per day, 1-2 times a month for 3-5 consecutive days, which can effectively prevent enteritis, hemorrhage, etc. Fulminant disease.