The average farmer uses chicken poultry farming cage to raise chickens and both are closed-type chicken houses. Farmers must ventilate the houses to allow the chickens to breathe fresh air, but some farmers are ventilating the houses. There will be some unreasonable phenomena in the process, so that the ventilation of the house can not achieve effective effect, then how to ensure proper ventilation.

First, to ensure the tightness of the house: the premise of effective ventilation is that the house must maintain good airtightness, allowing fresh air to enter the house from the side wall vents or the curtain at the front of the house. Therefore, it is required to check and test the tightness of each house in the field. For houses with poor airtightness, it is necessary to find places where the air leakage is serious, especially for the front and rear doors, the slabs and the water curtains. . In addition, the vertical ventilation system is mainly used in the high temperature period, and the wet curtain cooling system is used.

 

 

Second, to ensure the matching of the chicken group demand and ventilation in the chicken house: the qualified chicken farm can be equipped with exhaust fans (fans), using negative pressure ventilation to increase the wind speed inside the house, increase the average airflow speed in the house, and accelerate the heat in the house. Discharge, to ensure ventilation. When using longitudinal ventilation (especially when using wet curtains), close the small windows of the
chicken house. If the small window is opened, the wind speed will be unevenly distributed. The curtain curtain at the wet curtain will be 1.5~2.0m. /s, the wind speed of the back of the chicken requires 2 to 3 m/s. The maximum wind speed on the back of the chicken should not exceed 3m/s. If it exceeds 3m/s, the chicken will only have adverse symptoms. In addition. The setting of Ac2000 should follow the first-class fan insulation, the second-stage fan ventilation, the
third and fourth-stage fans to reduce the temperature difference, and set the temperature reasonably. The temperature difference between the fans at each level should not be too large, generally controlled at 2~3°C. 

Third, the use of air inlets and water curtains should be matched with the fan: the size of the air inlet opening should be matched with the fan. The purpose is to make the house ventilation even and effective, and the static pressure inside the house is appropriate to ensure the wind speed of the house. The basis for adjusting the size of the air inlet in the house is mainly determined by the wind speed inside the house, but the air inlet must be opened symmetrically, and the deflector should be installed at the same time, and the angle of the baffle should be parallel to the angle of the roof, so as to make the chicken enter. The fresh air from the house reaches the middle of the roof of the house, and after mixing it, it is evenly blown to the flock to avoid blowing the flock. The static pressure in the house must be within the standard range and should not be too large to avoid damage to the ventilation equipment.

Fourth, create a suitable body temperature: whether the ventilation management of the house is effective, whether the chicken is comfortable, can not only look at the temperature displayed by the thermometer and the thermostat, must be judged according to the somatosensory temperature of the chicken and the performance of the flock: Whether the group is eating, drinking, tweeting, mental state, etc. is normal to understand the comfort level of the flock.

The above is a summary of the methods of how to ensure proper ventilation in caged chicken houses summarized by the automatic poultry farming equipment manufacturers, hoping to help the farmers.