1 The chicken coop should face south, so that it is beneficial for ventilation in summer to reduce the temperature in the house, and in winter, it can avoid the frontal attack of the northwest wind, which is conducive to keeping the house warm. The chicken coop must have enough height to ensure good ventilation effect; and it must be designed as a building that can keep warm in winter, ventilate and cool in summer, drain and remove manure and easy to disinfect, and ensure that the air temperature, humidity and freshness are within the normal range Inside.
2 Doors and windows. The location of the door should be convenient for work and cold protection. Generally, the door is located on the south side of the south facing chicken house. The size of the door should be such that all the equipment in the house and the vehicles working in the house are easy to enter and exit.
3 The roof. The roof consists of two parts, the roof truss and the roof, which require good heat insulation performance. The roof truss can be made of steel bar, wood, prefabricated cement board or reinforced concrete. The roof must be weatherproof, impermeable and cut off from solar radiation. In my country, tiles, asbestos tiles or reeds are commonly used. Best under the roof
The chicken coops are mostly bungalows. In recent years, buildings have also been adopted. There are many roof forms for bungalow chicken coops. Such as single slope type, double slope type, gas building type, arch type, flat top type, double slope type, etc., the top of the chicken house of the building is mostly flat top. When choosing the form of the roof, factors such as the span of the chicken house, building materials, climate conditions, the scale of the chicken farm, and the degree of mechanization must be taken into consideration. For example, the single-slope chicken house generally has a small span. It is suitable for small-scale chicken breeding; double-slope and flat-top chicken coops have a large span and are suitable for large-scale mechanized chicken breeding; double-slope and multifaceted chicken coops have better lighting and heat preservation and are suitable for northern China.
4 The ventilation setting of the chicken house. Ventilation has the functions of removing pollutants in the house and regulating temperature and humidity. There are two ways of ventilation, namely natural ventilation and mechanical ventilation. The open type chicken house is mainly natural ventilation. When the span exceeds 7 meters, fans should be installed to supplement mechanical ventilation. Closed chicken houses rely entirely on mechanical ventilation.
Mechanical ventilation is divided into positive pressure ventilation and negative pressure ventilation. Exhaust air from the fan is called negative pressure ventilation. The fan blowing into the house is called positive pressure ventilation. There are several ways of negative pressure ventilation, and the choice depends on the span of the chicken house. The penetrating negative pressure is often used in chicken houses with a span of less than 10 meters.
Wind; multi-layer chicken coops with a span of less than 12 meters and 2 to 4 floors are suitable for roof exhaust negative pressure ventilation; a chicken house with a span of less than 20 meters and 5-6 groups of chicken coops is suitable for use. Wall exhaust type negative pressure ventilation, etc.
The area of the air inlet is calculated based on an air inlet area of 0.096 square meters required for an air exchange rate of 1,000 cubic meters per hour. If the air inlet has a shading device, it will be increased to 0.12 square meters.