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1. At noon during sunny weather, open windows for ventilation every day for 2 hours to 3 hours.
2. After the pigs have been acclimated for more than 3 days, gradually increase the ventilation time to about 6 hours. The time can be arranged from 10 am to 4 pm.
3. After a week of accommodation, open the windows for ventilation during the day and close the doors and windows at night after work.
4. After a week of acclimation, the doors and windows are fully open during the day and some windows are left at night, but the wind cannot be blown straight through the pigs.
5. In the end, when the temperature reaches 20°C or more, and the minimum temperature is not lower than 10°C, the doors and windows are open all day and night.
However, in the event of a sudden change in the weather, when the temperature drops, some of the doors and windows must be quickly closed to see if the pigs perform adequately in ventilation.
As long as the principle of gradual and gradual opening and ventilation is mastered, the farm will be able to spend the warm season alternately.
In the spring, the ambient temperature gradually rises, the temperature inside the pig house rises rapidly, and the pig activity increases, which results in a significant increase in house dust and a significant decrease in air quality. To maintain air quality, increasing ventilation is an inevitable measure. According to past experience, when the season changes, it is when there is a lot of pig disease. If the management of insulation and ventilation is not good, the environment in the pig house will change drastically and the pig body will be subjected to intense stress. Therefore, the ventilation of the pig house during the rapid changes in the season should be gradually carried out. The following measures can be taken: