Sustained high temperatures in the summer, resulting in pond water temperature is too high, the water body lacks oxygen, oxidation and decomposition functions decline, water quality deteriorates, fish and shrimp ponds frequent floating heads, once improper management, it is easy to cause fish and shrimp death, severe, the shrimp will be completely destroyed . To this end, the Dongtai Fisheries Technology Home Leading Group summarized the following four aspects of management points for reference. First, strengthen water quality regulation and management The quality of the water directly affects the growth environment of the shrimp. In the process of raising shrimp in the pond, it is necessary to adjust the water quality and strengthen the scientific management of water quality. 1, transplant planting water plants. The requirements for water quality of the shrimps are relatively high, and they require fresh water. The method is to transplant and grow aquatic plants such as peanuts 1m-2m along the edge of the pond. Aquatic grasses can not only provide hiding places for clams, but also increase dissolved oxygen content in water. During the high temperature season, aquatic grasses can also play a role in shading and cooling, which is beneficial to the growth of crayfish. 2. Add new water in a timely manner. Generally every 10 days or so should be filled with new water once, each time adding 20-30 minutes of water. 3, control the transparency of water. Use a small number of fertilization methods in summer, such as the pool water is yellow brown or soy sauce color, when the transparency is above 40?, should increase the amount of fertilizer; if the water is dark, the transparency is below 25?, the water smells or the fish and shrimp seriously floating head When the phenomenon shows that the water quality is too fat or the water quality is deteriorating, it is necessary to stop the fertilization, and inject new water in time to improve the water quality. 4, flexible boot oxygen. Sunny day noon boot, cloudy early morning the next day boot, rainy season or water and fat fish for a long time, before and after midnight boot, do not boot in the evening, there is a floating head immediately boot. 5, application of purified water quality. Periodically Quanchipite splashes water to purify the water, generally using 15kg-20kg of lime per acre of water. 6, diligent patrol pond ground inspection. Do a good job of “Three Looks†and timely adjust water quality according to changes in weather, water quality, and fish eating and drinking activities. Second, timely catch hot water fish and shrimp After August, hot water fish and shrimps were harvested at the right time to reduce the amount of fish on the pond. Add new water after catching and disinfect water in time. Generally available dibromohydantoin 0.2ppm, or chlorine dioxide 0.3ppm, or bleach 1ppm Quanchiposa. Third, scientific and rational feeding Feeding is mainly based on formulated feed, supplemented by green feed. The number of feeding times is a small number of times, generally from 21:00 to 4:00 in the afternoon, feeding 2-3 times, feeding about 3 hours after feeding is the best feeding amount, and 30%-40% of the whole day's feeding during the day. In the evening, 60%-70% of the total daily amount is fed, and the bait is placed in the shallow water area surrounded by aquatic plants in the shrimp pond so as to feed the shrimp. Fourth, adhere to fish disease prevention and treatment
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