1, pond conditions
The area is 5-8 mu, the water depth is about 1.0-2 m, the bottom of the pool is flat, and the mud at the bottom is 20 cm thick. Each pond is equipped with 3 kW impeller aerator and automatic bait feeder, with independent water inlet and outlet pipes and groundwater as water source.
2, pond disinfection
Generally, after the fry are transferred out, drain the pond water for as long as possible (more than 30 days in winter) and expose to the sun, so that there will be much less pests and bacteria in the breeding period. After the pond is dried, we should choose appropriate drugs to clean the pond, such as quicklime, pyrethroids, niclosamide and so on.
Step 3 splash throwing
From May 5th to15th every year, choose the appropriate time to bloom flowers. The suitable spraying density is 65,438+10,000 flowers per mu, and the survival rate is 30%. 30,000 flowers can be cultivated at 3cm per mu. It is necessary to start the aerator one day before the splash is put into the pond, and aerate for four days after the splash is put into the pond, which can reduce the probability of bubble disease.
4. Feed feeding
It is mainly cultivated with soybean milk, which can be poured the next day, 3-4 times a day. Soak soybeans for 8 hours first, grind them as fine as possible with a refiner, and then sprinkle them along the edge. After 7 days of cultivation, Huashui entered the breeding period of Wuzi, at which time it can be cultivated with fermented vegetable cakes. After 15 days of culture, the splash entered the water culture period. At this time, the compound feed should be ground with a refiner and scattered along the pool.
5. Water quality regulation
The first consideration is the fatness, and it is suggested that the transparency should be kept at about 30 cm for a long time. In addition, in the aspect of algae phase, maintaining high-quality algae phase water such as cryptoalgae, diatoms and green algae for a long time to avoid the formation of dominant populations of cyanobacteria, dinoflagellates and gymnosperms is the focus of daily algae phase regulation.