Onset In the summer rainy season, when temperatures are high and most of them are hot, the decomposing fermentation of various organic substances and residual baits at the bottom of the pond will lead to the lack of dissolved oxygen in the water. At this time, the weather is cloudy and lacks light, and the water is phytoplankton. Photosynthesis is poor, and dissolved oxygen cannot be replenished for a time. Therefore, fish often floats due to lack of oxygen at this stage. This will inevitably lead to poor fish and poor health. During the rainy season, it often rains. Insufficient illumination causes algal growth to not thrive. Surface dirt and mud flow into the pond with rainwater. The self-purification capacity of the water body decreases, and some algae sink and die due to prolonged lack of light and the flocculation of the soil. Under the action of anaerobic decomposition, produce ammonia, nitrite, sulfide and other toxic and harmful substances, so that the fish have chronic or acute poisoning, some fish will die of the disease. Countermeasures 1. Reasonably and reasonably start the aerator: farmers should start aerators timely and reasonably according to the weather, fish specific activities, etc. during this period to prevent fish floating heads and at the same time improve the pond water quality; The conditions of the farmers can prepare some oxygenated drugs at home to prevent urgent needs. 2. Adjust water quality: This period can be used to adjust the quality of calcified water once, the general amount of 5 kg / mu ~ 10 kg / acre, about 1 meter water depth, select sunny afternoon use, so that the pool water pH value is maintained at 7.5 ~ 8.5. If necessary, water can be changed as appropriate, but clean and polluted exogenous water should be selected. The amount of water exchanged should be about 5% to 10% of the amount of pond water each time. Water should not be changed in large quantities to prevent stress responses from fish. 3. Fish Disease Prevention: During the rainy season, due to the low dissolved oxygen in the water body and frequent fluctuations in the water environment, the ability of fish to adapt to the water environment is reduced. Therefore, the prevention of fish diseases should be done during this period, but the choice and use of drugs must be Careful to prevent the water environment from changing too much after the use of drugs, resulting in stress response of fish. For some large amounts of oxygen-consuming microbial preparations and biological fertilizers, it is best not to use them. It is recommended to mix three yellow powders and other internal medicines into the feed. Feed 3 days to 5 days for fish disease prevention. 4. Science feeding: During the rainy season, we must pay close attention to the eating conditions of fish, timely adjust the amount of daily feeding, prevent excessive feeding and waste, and pollute the water and increase oxygen consumption. The specific feeding amount should be flexibly controlled according to the weather, fish activity, and other conditions. In addition, it is advisable to mix vitamins for internal use in the diet to increase the immunity of the fish and increase the anti-stress ability of the fish. Dehydrated Evergreen,Evergreen Dehydrated Vegetables,Air Dried Evergreen,Air Dried Evergreen Vegetables Xinghua Lvwei Foods Co.,Ltd , https://www.lvweifoods.com