Fumigation is a commonly used and effective disinfection method in poultry houses. Its greatest advantage is that the fumigating drugs can be evenly distributed to all corners of the poultry house. The disinfection is thorough and thorough, and it is convenient and effortless. It is particularly suitable for the disinfection of heavily polluted poultry houses. In order to give full play to the role of fumigation and ensure the disinfection effect, the following eight issues should be noted when fowling and disinfection of poultry houses:
First, the poultry house must be kept intact. The higher the formaldehyde gas content, the better the disinfection effect. In order to prevent gas from escaping from homes, before the poultry house is fumigated and sterilized, it is necessary to check the tightness of the poultry house, and to install glass on the doors or windows without glass or incomplete. If there are any gaps, plastic cloth, newspaper or tape should be affixed. To prevent leakage.
Second, containers containing liquid chemicals should be resistant to corrosion and bulky. Potassium permanganate and formalin are corrosive and react violently after mixing, releasing heat and generally lasting for 10-30 minutes. Therefore, the container for containing the medicine should be large enough and resistant to corrosion.
Third, with other disinfection methods. Formaldehyde can only sterilize the surface of objects, so mechanical cleaning and spray disinfection should be performed before fumigation, so that the disinfection effect will be better.
Fourth, provide a higher temperature and humidity. In general, the temperature should not be lower than 18°C, and the relative humidity should be 60%-80%. It should not be lower than 60%. When the temperature is 26°C and the relative humidity is above 80%, the disinfection effect is best.
Fifth, the dose, concentration and proportion of drugs should be appropriate. The ratio of milliliters of formalin to grams of potassium permanganate is 2:1. Generally, the amount is calculated in terms of formalin 30 ml/m3, potassium permanganate 15 g/m3 and water 15 ml/m3.
Six, disinfection method is appropriate. To ensure the safe operation of humans and animals, pour the water into a ceramic or enamel container first, then add potassium permanganate, stir it well, and then add formalin. The person will leave and seal the poultry house. The container used for fumigation should be as close as possible to the door so that the operator can quickly evacuate. The operator must avoid formaldehyde contact with the skin and must be left empty when disinfected.
Seven, maintain a certain disinfection time. Requires fumigation for more than 24 hours. If not in use, seal it for 2 weeks.
Eight, pay attention to ventilation after fumigation. After disinfection, the smell of formaldehyde in the poultry house is relatively strong and irritating. Therefore, the doors and windows of the poultry house should be opened, ventilation should be carried out for more than 2 days, and formaldehyde gas should be completely used before being completely dissipated.
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