2, timely oxygenation. It is easy to pollute the water quality because of the large amount of feeding and fish excrement. In order to adjust the water quality, promote water convection, increase dissolved oxygen in the pool and discharge toxic gases, it is necessary to use the aerator in a reasonable and timely manner. It opens at noon on sunny days, at night and at midnight on rainy days. The start-up time can be appropriately extended when the weather is hot, and should be reduced when the weather is cool.
3. Water quality control. Transpiration is obviously enhanced in high temperature season, and water quality is easy to deteriorate. Therefore, fresh water can be properly replenished, and the water injection amount is controlled at 20-30cm. Water injection time can also be controlled according to the environment. When adding water, attention should be paid to the external water quality, and it should be done during the day. Quicklime and photosynthetic bacteria are often used to improve water quality. Applying quicklime to the pond irregularly to adjust the water quality can not only improve the pH of the pond water, control the reproduction of bacteria, but also prevent fish diseases.
4, disease prevention, continuous high temperature will make aquatic animals weak, water quality worse, easy to induce fish diseases. The prevention and control of fish diseases should adhere to the principle of "prevention first, combining prevention with control" and be disinfected regularly. Once a disease occurs, try to diagnose it accurately and use it timely and accurately. Generally, it is advisable to use it at 9: 00 am on sunny days to avoid high temperature at noon. After use, the aerator should be turned on to stir the water body to break the thermal stratification and avoid the local concentration of pollutants in the water body being too high.
5. Catch up in time. The high temperature season every year is the off-season of aquatic products supply, and the prices of various aquatic products are relatively high. All farmers should seize the opportunity and go to the market in time according to their own breeding situation. You must stop eating for one day before fishing and make all the preparations. You should choose to get off the net in the early morning, and you can cool down properly during transportation, seize the time and reduce deaths.
6, adhere to patrol the pond, summer climate is changeable, should adhere to the daily patrol work, at the same time, we must record the daily aquaculture production, eating, disease prevention and control, in order to sum up the experience and lessons. In addition, in the process of patrolling the pond, we should reduce the time of outdoor activities in the afternoon, do a good job of heatstroke prevention and cooling, and pay attention to personal safety.