At this stage, the breeding industry is very difficult to do, especially in terms of heat preservation, the temperature difference between day and night is large, the temperature reaches 25 degrees during the day, there is frost at night, and the temperature is 0 °, which has a great impact on our pig industry and has a great mortality rate. I don't know if you heroes have any clever tricks, come out and say. -- doors and windows should be closed as much as possible at night, and of course there should be vents, otherwise respiratory diseases may occur. On this basis, the delivery room and conservation should have incubators, heating versions, and infrared light bulbs, and hot air stoves should be used last in the northeast. Don't want to spend money, but also want to keep warm. Ordinary people can't do it. They burn boilers or light stoves at night. It is recommended that you close the doors and windows of your pigsty at night and pay attention to ventilation when the temperature is high during the day At night, you can put some weeds and corn stalks outside your doors and windows to raise the temperature of the pig house, especially to provide adequate feed-many biogas digesters in Guangdong use biogas digesters to burn boilers for heating. -Ha-ha! Use the fermentation bed! The effect is very good!