"Seven Points" Key Technologies for Humidity Control in Pig Houses

The main reason for the dampness of the pig house is the excessive production of water vapor and poor ventilation. The main sources of water vapor are the water vapor generated by the pig house floor, the water evaporation in the manure ditch and the respiration of the pigs. To maintain the proper humidity in the pig house, it is necessary to strengthen ventilation while reducing water vapor. 　　　　

①Pig house location 　　

The pig house should be built in a high dry terrain, with a north facing south, and the floor of the pig house should be raised moderately. This is conducive to ventilation and drainage. The soil is dry and does not return to moisture. The floor of the pig house should be higher than the surface outside the house. It is recommended to raise it by 800-1000 mm. 　　　　

②Increase ventilation 　　　　

The effective way to remove damp and moisture in a pig house is to make good ventilation measures. Through ventilation, on the one hand, the moist air in the house is taken away and the floor is dried, and on the other hand, the dirty air is discharged and fresh air is replaced. 　　

③Optimize ventilation method 　　

Under the condition of ensuring good ventilation, it is also necessary to optimize the ventilation method, mainly to strengthen the rational use of manure fans. In pig houses with full and semi-leaking floors, use manure fans Ventilation can greatly increase the ventilation rate. 　　　　

④Keep the ground level and free from urine and water　　

Many pig farms have poor floor construction quality, the concrete is not up to standard, the floor is uneven, the slope is too small, the concrete arches and falls off, etc., the water and urine in the pig house are serious, which not only affects the air quality, but also causes the air humidity It will affect the health of pigs. 　　　　

⑤Adopt water-saving design, optimize floor structure and clean manure method　　 　　

The water-saving design idea is mainly reflected in reducing the waste of drinking water in the pig herd, reducing the water used for flushing, and reducing the humidity in the pig house. 　　

The excretion of pigs is the main cause of high humidity and poor air in the pig house. A good leaky floor design can ensure that the pigs’ feces and urine fall into the pit in time. It is recommended to adopt a semi-leaking floor type, which not only reduces the cost, And it can reduce air humidity and improve air quality. 　　

⑥ Maintain a reasonable stocking density　　

The density of the pig herd is too high, not only produces a large amount of manure and urine in the pen, but it is also difficult for the pig herd to form a habit of urinating at a fixed point, which causes serious pollution of the manure in the house. Relative humidity. 　　　　

⑦adopts temperature and humidity automatic controller　　 　　

The temperature and humidity controller is connected to the fan. When the temperature or humidity reaches the set value, the fan will automatically turn on to increase the ventilation volume and reduce the humidity.　

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