Effective methods of keeping crabs warm in ponds in low temperature and freezing weather.

1) strengthen the management of nets, nets and other facilities, pay attention to removing attachments, maintain good water exchange, and prevent fish from hypoxia;

2) When the weather is clear, it is necessary to reasonably increase feeding, increase energy and enhance the cold resistance of fish;

3) Strengthen the prevention and control of fish diseases, especially the prevention and control of water mold and parasites;

4) Minimize operations and suspend fishing operations to avoid fish injuries;

5) Oxygen increasing equipment can be used in small water surface.

2. Pond:

1) Raise the water level of the pond, keep the water depth above 2m, and keep the water level stable;

2) When conditions permit, wells can be drilled to extract groundwater, hot spring water can be used, and measures should be taken to prevent freezing rain and low-temperature water from directly flowing into the pond;

3) If conditions permit, build greenhouses and shelters;

4) proper feeding;

5) Reduce operations to avoid hurting fish;

6) Strengthen the prevention and treatment of fish diseases.

3, frying:

1) Focus on guiding and protecting seed production units in our city, and do a good job in heat preservation of parents of cold-tolerant aquaculture varieties and overwintering seeds;

2) Further strengthen cultivation, ensure the parents and overwintering seedlings of breeding varieties to overwinter safely, do a good job in seed production and supply, and ensure the needs of breeding production recovery and reconstruction.

4. Material storage: Do a good job in the storage of production materials for disaster relief and post-disaster recovery, especially the storage of epidemic prevention materials such as various disinfectants, so as to avoid breeding diseases due to disasters and epidemics.

5. Harvesting: Organize and mobilize aquaculture units to harvest warm-water fish such as tilapia, catch and sell those that can be marketed as soon as possible, reduce losses, empty the pond, clean the pond for disinfection, and prepare for spring stocking.