The temperature in winter is cold. In the process of ventilation management of the house, ventilation and heat preservation are relatively contradictory. How can we keep ventilation and keep warm?
Ventilation in winter is mainly based on ventilation. It is best to have no smell in the house. In the cold season, the ventilation of the house adopts different air intake modes, which will greatly affect the comfort and production performance of the chickens. There are two commonly used types – ordinary windows and adjustable ventilation windows. The ventilated small window is best used, and the air inlet can be adjusted according to the external temperature, so that the cold air entering the chicken house goes up at a higher speed and flows to the top of the chicken house until the center of the chicken house, and the warm air above the house and the house. Mix to avoid cold stress in the flock. If the air inlet is too small, the static pressure of the house is too high, and the air volume of the house will be insufficient. If the air inlet is too large, the static pressure will drop, resulting in low wind speed and uneven air intake.
On the basis of ensuring the minimum ventilation, the minimum temperature in the night is the opening value to ensure that the temperature of the house is not lower than 13 °C. The temperature setting is too high, and the air circulation in the house is not smooth; too low will cause the ventilation time to be too long, and the temperature of the house is too low, causing stress in the flock. In addition, in the cold season, when the temperature of the house is lower than the temperature set by the thermostat, the fan cannot be started, and the house needs to maintain the minimum ventilation. It is necessary to use the intermittent fan to operate the ventilation intermittently, so that the temperature inside the house can be controlled. There can be no phenomena of high and low in automatic poultry farming .