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Should be selected on a high ground, away from other farms and residential areas, convenient transportation and complete water and electricity.
2 Chicken house construction
The sheds can be north-south or east-west. The width (width) of the house is 7-10 m. The length of the house can vary depending on the size of the rearing, which is generally 20-80 m. The highest point of the cross section is 2.70-2.85 m. The height of the shoulders is 0.85-1.10 m. The ventilation below the shoulders is provided. Adjust the mouth, above both shoulders arched roof.
Two end walls can be built first (the distance between the two walls is the length of the house, and the width of the door is about 2 m at the end wall 2/4-3/4, and the door is 1.8 m high). Between each 4 m, bricks are used to build two rows of 0.85 m high columns (the distance between two rows of columns is the width of the house), and then three rows of cement columns are added between the two rows of columns. The highest row in the middle row is 2.7 m. Two rows of height 1.8 m, followed by five rows of columns plus parallel five rows of cross-wood, cross-wood and columns fixed with wire, etc., horizontal bamboo plus vertical (about 3 cm thick), 3 per meter, so that the chicken house The framework is complete.
The roof is a four-layer structure, the first layer is a drip-free plastic film, the second layer is a straw or wheat straw insulation material (thickness 4-6 cm), the third layer is a plastic film (fixed function), the last layer For a thick straw fence, use a 14-gauge wire (2 lanes per meter). Note that the plastic film at both ends of the wall and the roof should not be fixed too dead to prevent the winter plastic from contracting to damage the end wall. The roof corners should be compacted with bricks to prevent wind damage. Loose vines such as gourd can be planted around the shed, which can play a role in preventing wind and cooling in summer.
3 Heating facility construction
A stove is built on both sides of the shed every 30 m. The furnace mouth is outside. A 1 m deep pit is built under the side shed to build the furnace cavity. The furnace cavity is connected to the internal fire path (using a 35 cm ID steel tube). 20 m out of the shelf to the chimney, outside the chimney height 2.8-3.5 m, after the frame does not basically occupy the chicken activities space. The first 1 m of the fire in the building should be made of bricks and then connected to the steel tube, so as to prevent the steel tube from being cracked. In addition, take care of the fire around the oven cavity.
4 building around the shed
The ground of the house can be paved with triad or cement so that it can be disinfected and cleaned out of the house and transported out of the vehicle. The skylight is added every 4 m to the roof, which can be fixed on two bamboo rafts with an inner diameter of 45 cm. On both sides of the shed, a layer of nylon net (anti-chicken run out) was added, and a plastic film was added. The amount of ventilation was adjusted by a plastic film. In winter, a plastic textile bag was added to the plastic film to insulate it. The sides of the shed are made of bricks with a 30 cm high wall that buffers the incoming cold air and acts as a partition.
5 Litter
This type of hen house is suitable for raising with thick litter. In the hot season of summer, the big chicken stage can be used as a litter for fine river sand. In the other seasons, crop straw can be used in all seasons (especially corn stalks is the best). Straw needs to be used. The rakes are cut to 3-5 cm long and dried. These beddings can be used as high quality farmyard fertilizers after cleaning the chickens. The thickness of the padding should be controlled at 5-8 cm, and it should be fresh and dry without mildew.
This kind of greenhouse-style chicken house construction, insulation and ventilation is very suitable for broiler growth, more suitable for installing automatic drinkers and automatic feeding devices. The large space inside the house makes the feeding and management operations more convenient. It overcomes many shortcomings of the housing construction, greatly improves the operability, and is suitable for the intensive development of broiler chicken breeding. The construction cost is 15-20 RMB/m2 (excluding ground treatment costs), which is only 1/20 of the housing structure. Different regions in China can be promoted according to the climate of different resources according to local conditions.
Plastic greenhouse sheds construction technology
1 Site selection