Structure requirements for broiler houses

The following points should be noted when constructing a special broiler house: 1. Appropriate width and height: The current construction of special broiler houses is mainly based on naturally ventilated open chicken houses, and its width should be between 9.8 and 12.2 meters. Reduce the chilling surface of the coops in winter, and chicken coops exceeding this width will be poorly ventilated during hot summer months. The length of the house is often limited by equipment such as automatic feeders. The height of the house is generally about 2.4 meters high, with a triangular roof with a slope of one-quarter to one-third, which facilitates drainage. The house should have a well-structured eaves. To achieve the purpose of rain and shade. If you can install ceilings or other insulation on the roof, it will be better to cool in the winter and cool in summer. 2, determine the reasonable building area of ​​the chicken house: The size of the building area mainly depends on the amount of feeding, and the determination of the amount of feeding should take into account the productivity of each labor force, not only the area of ​​the chicken house, nor cause a waste of labor. For example, if a man's breeding capacity is 3,000, and the number of henhouses built can reach 4,000, then it cannot be raised with a single labor force. It is wasteful with two labors. 3, must meet the ventilation and ventilation requirements and adjust the temperature: natural ventilation is mainly the use of natural wind and temperature difference. Commonly used in the structure of the sheds are windows, air buildings and ventilators. (1) Windows: For windows to have a height difference, care should be taken to direct the prevailing winds towards the lower position windows. In order to adjust the amount of ventilation, the windows can be made up and down in two rows, and some windows can be opened and closed according to the requirements of ventilation. Both the natural wind power and the temperature difference are used. The total area of ​​the window can be about one-third of the construction area in North China. The number of northeastern regions should be smaller, and the southern region should be more. In order to make the ventilation in the house even, the windows should be symmetrical and evenly distributed. In order to prevent the cold wind from blowing directly onto the chicken in the winter, windshields can be installed so that the wind speed can be lowered evenly into the house. The ideal window structure should have three layers of equipment: the inner layer is barbed wire to prevent birds from entering the coop and avoiding animal damage; the middle layer is glass; the outer layer is a plastic film, which is mainly used for winter insulation. (2) Gas House: It can make better use of temperature difference than windows, and the lighting in the house is better, but the structure is complicated and the cost is high. (3) Ventilation tube: The principle of ventilation is similar to that of gas building, and the structure is simpler than that of gas building. It is generally required that the height of the ventilators should be more than 60 cm above the roof. 4. Appropriate wall thickness and ground structure: In the northern area, the northwest winds are scraped in winter, and the thickness of the brick walls of the northern wall and the western wall should be 0.37 meters (37 walls), and the east and south walls can be 0.24 meters (24 walls). ). In order to facilitate drainage during flushing, the ground should have a certain slope, generally controlled at 1:200-300, and a drainage ditch. In order to facilitate excrement removal and prevention of rat damage, it is best to use a cement mortar to grind the surface within a depth of 0.2 meters.