Disinfection with chicken spray is an important part of the integrated intensive epidemic prevention of modern intensive chicken farms, and it is one of the effective means to control the environmental pollution and disease transmission in chicken houses. Although the broiler house is strictly sterilized before entering the chicken, some infectious diseases may also occur in the rearing process. This is because the chicken body itself carries, discharges, and spreads pathogenic microorganisms, together with external pathogens. It can also enter the house through the spread of people, equipment, feed, and air. Chicken spray disinfection can effectively and timely purify the air, create a good chicken house environment, inhibit the production of ammonia gas, effectively kill the pathogens in the air and living environment of the chicken house, eliminate the hidden dangers of diseases, and achieve the purpose of disease prevention. Let's talk about the method of disinfecting chickens.
First, to prevent the occurrence of stress reactions 1 within the first 12 hours of disinfection of chickens to drink 0.1% vitamin C or water-soluble multivitamin solution. 2 Select irritating, highly effective and low toxic disinfectants, such as 0.02% 100 toxin, 0.2% toxin, 0.1% benzalkonium, 0.3% to 0.6% toxin, 0.3% to 0.5% peracetic acid or 0.2% ~0.3% sodium hypochlorite and so on. 3 Before the spray disinfection, the temperature in the house should be 2 degrees to 3 degrees higher than the conventional standard, and the chickens should be affected by the cold water caused by the evaporation of moisture. The temperature of the disinfectant solution should be higher than the temperature in the house. 4 When spraying, the droplets must be fine. The amount of spray is appropriate for wet chickens and cage nets. Do not spray too much and too wet. Generally, the amount of spray is calculated as 15 ml per cubic meter of space. Close the doors and windows when spraying. 5 spray disinfection is best selected at high temperatures at noon, while the flat chickens should be selected in the dim light or turn off the lights after the chickens are quiet, to prevent fright, causing the chicken to fly smash and other phenomena.
Second, the frequency and dosage of spray disinfection should generally be determined according to the size of the age of the flock. One-day to 20-day-old chickens are to be disinfected once every 3 days; 21st to 40-day-old flock are to be sterilized every other day. Once; once daily after 41 days of disinfection. The amount of medication can be increased as appropriate according to the instructions for use as the age of the bird increases.
Third, the choice of disinfecting drugs Disinfectants must be broad-spectrum, high-efficiency, strong, non-toxic, non-harmful, irritating and non-corrosive, use should be in accordance with the instructions, the amount of drugs to be accurate. In addition, we must consider the chicken's age, physical condition and season, epidemic characteristics of infectious diseases and other factors, and must be targeted, so as to achieve the purpose of preventing disease.
IV. Selection and Disinfection of Disinfecting Devices Chicken Spray Disinfection can use automatic spray device or backpack-type hand sprayer with good atomization effect. The size of fog particles is controlled between 80 μm and 120 μm, and the spray head is 60 cm from the chicken body. 80 cm spray. The mist particles are too small to be easily inhaled into the respiratory tract by chickens, causing pulmonary edema, and even inducing respiratory diseases; fog particles are too large to cause uneven spraying and the house is too moist.
Fifth, the scientific preparation of disinfectant liquid preparation of disinfectant liquid is better to use deep well water or tap water, otherwise too much water impurities will reduce the efficacy. When the temperature of the disinfectant solution is increased from 20 degrees to 30 degrees, the effectiveness of the disinfectant is also increased. Therefore, when preparing the disinfectant solution, dilute it with hot water. However, the water temperature should not be too hot, and the temperature should generally be controlled below 40 degrees. Cool water can be used in summer, especially in hot summer, disinfection time can be selected at the hottest time, so as to disinfect and play the role of sunstroke prevention and cooling at the same time.
Six, the correct method of disinfection First, clean the sprayer, and then in the inside with a good liquid, you can start disinfection from one end of the house, while spraying the other side slowly go. The spray nozzle should be upward, so that the liquid slowly falls like a fog; ground, walls, ceilings, cages should be sprayed with liquid; action should be light, the sound should be small. In the initial disinfection, chickens may become turbulent due to fear and can gradually become accustomed to it later.
Seventh, chicken spray disinfection should pay attention to the problem 1. The chickens stop spraying disinfection within 3 days before and after the vaccination, but also can not take antibacterial drugs to prevent affecting the immune effect. 2. To clean the environment, remove the cobwebs on the roof, dust, chicken feathers, and faeces from the walls of the roof and the chicken house before disinfection. Reduce the presence of organic substances to improve the disinfection effect and save the amount of drugs. 3. Spray disinfection can be performed on the day when the chicken is routinely administered. 4. It is advisable to spray the ground with a uniform humidity of the ground, cages, walls, and ceiling, and a slightly wet surface. 5. Ventilation: As the spray causes the chicken house and chicken body to be wet, they must be ventilated afterwards to make them dry as soon as possible. 6. Insulation: Keep a certain temperature in the house, especially in the brooding stage. Increase the house temperature by 3 to 4 degrees so that the wetted chicks get the proper temperature and avoid the chicks being crushed to death. 7. Different types of disinfectants should be used alternately, alternating quarterly or monthly. Long-term use of a disinfectant can reduce the bactericidal effect or produce drug resistance, affecting the disinfection effect. 8. After the disinfection is completed, use clean water to thoroughly clean the inside of the sprayer and the spray bar, and then place it properly after drying.
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