How to deal with the long-term low temperature and rainy weather in the main producing areas of tilapia in South China?

(1) A shelter was built in the north of the pond to prevent the north wind from blowing directly to the surface of the pond and slow down the alternate action of pond water, thus slowing down the cooling of pond water.

(2) Pay attention to the change of water quality and keep the water fresh. For slightly acidic groundwater, use a proper amount of quicklime to adjust the acidity of the whole pool, and the dosage is 10g/m3 water body.

(3) Strengthen the daily management and inspection of the pond, remove sick fish and dead fish in time, and prevent the occurrence and rapid spread of water mold caused by long-term low-temperature frostbite. Iodine preparation can be used to treat water mold caused by low temperature.

Clear the dead fish in time.