From June to August, it is the best time for large-scale feeding and rapid growth of farmed fish. At the same time, it is also an epidemic season for outbreaks of fish diseases. Therefore, fish pond management should be based on disaster prevention, feeding, and disease prevention.
Increase awareness of disaster risk prevention
Every summer is a concentrated period of typhoon rainstorms. Governments at all levels must establish awareness of disaster risk prevention, and fish farms must inspect the flood drains around the fish ponds, the floodgates in and out of ponds, and the livestock barracks to prevent landslides and landslides. , immediately repair, reinforcement, take preventive measures.
Pay attention to regulating water quality
Use lime to adjust the pH of the water body. In summer, it is a typhoon rainy season. Yellow muddy water flushed down by mountain torrents will inevitably flow into ponds. Moreover, natural water is acidic water. Therefore, the pH of the water body should be regularly adjusted by quicklime. Usually 1m deep water per acre is splashed with quicklime 15 to 20kg of water per day, once in 15 days, so that the pH is between 7.5 and 8.5.
Regular use of probiotics to regulate water quality. The commonly used microecological preparations include photosynthetic bacteria and Bacillus. Especially after long periods of heavy rain, the ecological environment of fish ponds has been hit hard, even destroying the micro ecological balance. It is particularly important to use microbiological bacteria at this time to repair the micro-ecological cycle and to create a good water quality environment for fish growth.
Change water regularly. In particular, after heavy rains, the fish ponds are generally more turbid and prone to deterioration. After being stabilized, they should be flushed with water in a timely manner so that the aquaculture water can be kept tender and tender. When the aerator is started in due course, the air pressure will be low in the early morning and the fish will start to move aerators to increase oxygen. If the area of ​​the pond is large, the aerator will not solve floating head problems for a time. Calm fish died of hypoxic floating heads.
Fish disease prevention
The high temperature and rain in summer is the epidemic season of fish disease. Viruses, bacteria, parasites, and blue-green algae are outbreaks that can easily lead to the death of fish. Under normal circumstances, regular use of bleach, powder and other chlorine-containing drugs to disinfect the water to kill bacteria and viruses, using copper sulfate and ferrous sulfate mixture (5:2) to kill parasites and blue-green algae (commonly known as green skin water) The use of quicklime to adjust the acidity of the water body, and at the same time to feed the bleeding, internal medicine baits, and accelerate the healthy growth of fish, improve disease resistance.
Doing a good job of fish seedling cultivation and management
At the beginning of the year, due to the effects of frost, cold and rain, a long period of time, a large number of tilapia, squid, freshwater pelicans, and leather beard maggots (including broodstock, adult fish, and seedlings) were frozen to death. This has delayed the seedling cultivation season this year. In June, it was these seedlings that were bred and bred and must be meticulously cultivated. They must be carefully managed for the autumn and winter rounds, and more healthy seedlings should be cultivated in the spring of next year to increase fishery production, increase income, and increase efficiency. This will make it a harmonious and well-off socialist society. New contribution.
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