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Early spring chicken house should pay attention to dampness
The relative humidity in the house should generally be maintained in the range of 50%-70%. The ideal relative humidity in the house is 60%. In early spring, because the outside world is still cold, the temperature is low, the chicken body evaporates through the respiratory tract and the skin, and the water and faeces that the chicken splashes on the ground of the chicken house when it drinks, the water evaporation and the grass in the sink (flat Chickens), causing the air humidity inside the house to increase significantly, especially when the ventilation is poor and the house temperature is low, the humidity inside the house is even higher. Experiments have shown that, under low temperature conditions, moist air can increase radiation and conduction heat dissipation of chickens, exacerbating the adverse effects of low temperatures on chickens. If the relative humidity in early spring reaches 85%, it will have an adverse effect on laying hens. In addition, the high-humidity air in the late winter and early spring also makes condensation water appear on the walls of the house and the inner surface of the roof, so that the building absorbs moisture, thereby reducing the insulation performance and the service life of the house. Water vapor also easily absorbs harmful toxic gases, dust, and microorganisms in the air and causes it to settle on the ground and equipment surfaces. When the water evaporates, harmful gases enter the air in the house, causing long-term fouling of the house air. In general, the dampness of chicken coops will contaminate chicken feathers, soft ankles, contaminate eggs, degrade quality, and even affect the health of laying hens. It can be seen that low temperature and high humidity (above 80%) in the early spring are extremely unfavorable to the production of chickens. Therefore, in the early spring, we must pay attention to the prevention of dampness in poultry houses. From the current practice of moisture-proof chicken production in various places, we must adopt the following comprehensive measures to maintain proper relative humidity in chicken houses. It is reasonable to choose the address of the building. Should choose the terrain Gaozao, conducive to drainage, open environment, conducive to ventilation in the construction of chicken coops; built housing should be north-south, this is conducive to warm moisture. To ensure adequate ventilation. Ventilation and ventilation can prevent excessive humidity in the house, exhaust excessive moisture in the air and prevent moisture, and can discharge harmful gas, dust and microorganisms in the house and keep the air in the house fresh. However, due to the low temperature in the early spring season, the ventilation volume must be strictly controlled. Generally, when the temperature is lower than 15°C, the ventilation rate should not exceed 3 to 5 cubic meters per kilogram of body weight per hour. The wind speed around the bird body should not be exceeded. More than 0.1 meters -0.2 meters per second, and pay attention to prevent thieves. In order to control the amount of ventilation in early spring and prevent cold air from directly blowing into the chicken body, ventilation holes should be provided in the upper part of the south window (or south wall). In mechanical ventilation, the fans shall be divided into several groups of control switches. In the early spring, only one group that meets the need for ventilation shall be opened, and a diverting plate shall be provided at the inlet. To prevent water leakage in drinking fountains. If it is found that the sink or drinking water leaks, it should be sealed or replaced in time. Pay attention to timely clear water area. In order to prevent condensation and absorption of water vapor in the house or on the surface of the equipment, the water splashed on the ground of the house or the water that has been spilled on the ground when the chicken drank water should be promptly wiped with a cloth to eliminate all factors that can cause water vapor in the house. It is necessary to remove house waste and ground dirt in time. With a one-time excrement of the chicken house, it is necessary to ensure that the storehouse (pool) is dry. Non-dust-removal sheds should be regularly defecate, preferably once a week. And you should remove the excrement and dirt from the ground. To improve the microclimate inside and outside the house. The microclimate environment in the early spring chicken house should be based on the protection of suitable temperature conditions, and the temperature in the house should not be lower than 12°C to prevent the temperature from being too low and the humidity being too high. The best conditions to install heating equipment. It is necessary to properly set the rearing density. The broiler house is suitable for keeping the density so that the flock is neither crowded nor resistant to moisture, especially for raising chickens. Persevere to change mats. When the bedding is dirty, it must be replaced in time to keep the bedding clean and dry. This is very important for raising chickens.