In order to build a safe chicken farm, the total amount of pathogenic microorganisms should be controlled from the air, feed, drinking water, and feces of the chicken house. Air Quality Control Enter the gas quality control of the house. At present, most infectious diseases are transmitted by the air. Therefore, the air that enters the house must be properly cleaned and sterilized. Some good purification and sterilization equipment can be used to purify the air. Gas house quality control. Most of the dust in the house comes from chicken skin, feathers, or from coughing and buzzing. For flat-raising houses, the mat grass also produces dust. These dusts can cause pathogenic microorganisms to infect the affected area, which can lead to immunization and medications that do not work as they should. There is currently a comprehensive technical equipment that can not only reduce the concentration of harmful gases but also remove dust. This kind of equipment can establish a space electric field control network in the house, which can remove at least 80% of the dust in the house, reduce the air humidity by 3% to 12%, and remove the harmful gas at an efficiency of 40% to 60%. The carbon dioxide efficiency is 30%-40%. For flat-raised chicken houses, the efficiency of removing microbial colonies is 82%-99%. For environment-safety caged chicken houses, it is not only necessary to set up a space electric field control network above the house, but also to set a space electric field control electrode in the manure channel so that the efficiency of removing microbial colonies is 90%-99%. Inlet gas quality control. Most of the gases with germs and dust will enter the house from the exhaust port, so the corresponding gas purification equipment should be installed at the exhaust port. Every 100m2 house needs at least 1 gas purification equipment. In order to increase the air flow into the house, an exhaust canister can be installed on the gas purification equipment, or an exhaust canister made of high-pull plastic film that can be heated by sunlight can be installed on the roof gas purification equipment. The length of the exhaust pipe should be between 6m and 12m, especially in the summer, and the temperature in the house can be reduced by about 2°C to 3°C. Ventilation design In summer, the weather is hotter, especially when the temperature is above 30°C, which may cause discomfort to the flock, which may affect its growth and laying performance. Therefore, some measures against heat stress and cooling should be adopted to solve the problem and at the same time, the ventilation work in the chicken house should be done. In the design of the shed, ventilation design should be considered, including power supply, equipment, etc., and the installation position should be reserved. China's ventilation equipment generally uses fan air supply and air extraction. It should be installed in a position that allows the air in the house to flow vertically to achieve optimal ventilation. The number of fans placed can be comprehensively considered in terms of fan power, house area, flock number, and actual temperature. temperature control As the chicken age increases, the temperature of the house should also change. For chicks from 0 weeks to 6 weeks of age, the temperature in the house should be controlled between 18°C ​​and 25°C. In the first day of the brooding, the temperature in the house should be controlled at 33°C-35°C, followed by a weekly drop of 2°C-3°C and 18°C-25°C. For chicken production, the temperature in the house should be controlled between 13°C and 23°C. The minimum temperature must not be lower than 5°C and the maximum temperature should not exceed 30°C. In order to achieve optimal egg production and feed efficiency, the temperature in the house should be controlled at 13°C-27°C. If you do not control the temperature of each stage, especially the hot and cold conditions, it is easy to cause cold and heat stress, which leads to immunity or medication failure. In this regard, the environment-safety houses can use ecological methods for temperature control in controlling the temperature, or wet screens or mechanical ventilation for temperature adjustment. Ecological law regulates temperature. It is the use of solar greenhouses and plant communities evaporative cooling insulation to play a role in temperature control. When the weather is fine during the daytime, the hot air in the greenhouse will enter the house through the air purification device, and will be discharged through the exhaust pipe after being mixed with the original gas. In the nighttime, the heat storage effect of the greenhouse wall and the soil can be utilized, and the temperature inside the house will not be reduced rapidly and the phenomenon of cold and heat stress will occur. Wet curtain or mechanical ventilation mode. Compared with the ecological method of temperature regulation, it is traditional. This kind of temperature adjustment method is to use some heating equipment to achieve the adjustment of temperature. When this method is adopted, purification equipment should be installed at the inlet and outlet of the relevant equipment to ensure the environmental safety of the house. Harmful gas removal method Ground odor absorption method. Spreading a layer of superphosphate on the ground in the poultry house can control the ammonia emission in the feces and reduce the odor in the poultry house. During the period, 350 g of superphosphate can be sprinkled evenly on every 50 poultry activities ground. Bedding deodorizing method. Sulphur in the litter allows the pH of the litter to be maintained below 7.0, thereby reducing the formation and emission of ammonia in the manure, controlling the ammonia content in the house, and reducing the ammonia odor. During the period, 0.5 kg of sulphur can be added into the litter per square meter of ground. Air suction method. Activated charcoal, charcoal, quicklime and other adsorbent substances can be used to adsorb odors in the air. During the period, the material can be placed in a mesh bag and hung in a chicken house or on the ground, which can have a good deodorizing effect. Herbal deodorizing method. There are many Chinese herbal medicines that have certain deodorizing effects, such as leaves, atractylodes, and straws. During the period, appropriate amounts of aliquots of the above substances can be placed in the poultry house and ignited, which can play a good role in inhibiting bacteria and deodorizing. It is best to adopt this deodorizing method when empty. Chemical deodorization method. Hydrogen peroxide, potassium permanganate, copper sulfate and other chemicals will reduce the air odor in the poultry house to some extent. During the process, 4% cupric sulfate and appropriate amounts of hydrated lime can be mixed in the padding to achieve a good deodorizing effect. Anesthesia Medical Co., Ltd. , https://www.trustfulmedical.com