Role of chicken farm fan:
The arrangement of the fan installation should make the air flow along the length of the poultry house horizontal flow. As a fan for cooling in summer, it is advisable to choose axial flow fans for large and medium-sized farms and pastures. The installation position of the fan should be concentrated on the gable at one end of the chicken house dirty road (sewage outlet) or on both sides of the wall near the gable, the air inlet is set in the fan at the opposite end of the gable or on both sides of the wall near the gable, and the Windows of the remaining parts should be closed. The air inlet area should be close to the cross-sectional area of the chicken house, or at least more than 2 times the area of the fan fan.
Chicken house ventilation, is an essential work content. One is to discharge the dirty air in the chicken coop, for fresh air; Second, adjust the indoor temperature and humidity. Under normal circumstances, the content of carbon dioxide in brood room should be controlled at about 2%, not more than 0.5%; The content of ammonia should be less than 10 µ l/l and not more than 20 µ l/l. The content of hydrogen sulfide gas should be 6. 6 μ l/l and should not exceed 15 μ l/l. The amount of harmful gases in indoor air can be measured by instrumentation, in most cases by the sense and smell of the breeder. If the smell is strong when entering the chicken coop in the morning and it irritates your eyes after a long time, it indicates that ammonia concentration and carbon dioxide content have exceeded the allowable range. Ventilation in the early stage of brood mainly through the brood chamber to achieve the wind bucket. After 3 weeks of age, the enclosed and cage chicken houses with high density are forced ventilated by fans. In open type hen house basically is to rely on open window to undertake natural ventilation. As long as the environment such as indoor air is strengthened management, the harmful gas content in indoor air is not easy to exceed allowable concentration, and the bacteria in the air can be discharged in time.
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