First, do a good job in pond cleaning Once the fish ponds have been cultivated for one or more years, the sediment often deposits a large amount of residual baits, dead fish, dead bodies of animals and plants, and a large number of harmful pathogenic bacteria and parasites are lurking in the silt, especially the massive deposition of cysts. After the release of fingerlings and fry, once the temperature rises, these pathogenic bacteria and parasites will multiply and infect the fish, posing a great threat to the growth and survival of the fish. However, the rapid decomposition of large amounts of humus in the water not only produces Harmful gases, such as methane, hydrogen sulfide, etc., and the dissolved oxygen in the water is consumed in large quantities, which is extremely likely to cause flooding hazards and bring heavy economic losses to pond aquaculture. Clear Pond mainly includes degerming, clearing pond mud, removing weeds, and repairing ponds, etc. Clear ponds can clear most of the bacteria, parasites, and predators that are lurking in the ponds, and can also kill snails and ticks. Cut off the path of pathogens. At the same time, exposure to the bottom of the pond is conducive to the removal of harmful chemicals and the bottom sediments have been improved. It can be seen that clear ponds play an extremely important role in the prevention and treatment of fish diseases. Second, winter stocking of fingerlings In December, winter stocking of fingerlings can be carried out in the Yangtze River Valley. Fish species should be selected for the same species, the same specifications, robust, disease-free and non-invasive fish species. In the 7-10 days prior to the release of fish species, about 1,000 kg of fermented and decomposed human and animal manure can be applied per mu of fish pond to fertilize the pool water and increase the water temperature. Fish stocking requirements are performed at a sunny temperature of 5-10°C, and rain, snow, freezing, and windy weather are not suitable for fish release. 3. The overwintering management of fingerlings ponds, adult fish ponds and broodstock ponds should not be ignored. Regular inspections are required to prevent the deterioration of the pool water and measures must be taken to ensure that there is sufficient dissolved oxygen in the pool water. When the fish pond water temperature is high, concentrate feed can be properly fed. In order to keep warm and keep cold, pool water should always be kept at a depth of about 2 meters. Our mission: To protect the health of ear, throat and nose with medical frontier knowledge and technological innovation. Electric Ear Washing Device, Ear Dryer, Medical Ear Syringe Pump, Ear Wax Removal Tool Ningbo Jiamai Internet Technology CO., Ltd. , https://www.jmcuhyd.com
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