First, the disinfection method
Mechanical removal method
It is mainly through cleaning, scrubbing, ventilation, filtration and other mechanical methods to remove pathogens. Although this method is common and commonly used, it cannot achieve the purpose of thorough disinfection. As an auxiliary method, it must be carried out in conjunction with other disinfection methods.
2. Physical disinfection method
Use sunlight, ultraviolet rays, drying, high temperature, cooking and other methods to kill bacteria and viruses.
3. Chemical disinfection
The use of chemical drugs to kill pathogens is the most common method. The selection of disinfecting drugs should consider broad-spectrum sterilization, effective concentration is low, the effect is fast, the effect is good; the second is harmless to humans and animals; the third is stable in nature, soluble in water, not easily affected by organic matter and other physical and chemical factors; Fourth, easy to use, Cheap, easy to promote; five is odorless, odorless, does not damage the items being disinfected; six is ​​the use of residual or less side effects.
4. Biological disinfection method
This method is commonly used to contaminate the feces piled up and fermented. When thermophilic bacteria are used to reproduce, they produce heat that is higher than 70°C. After 1-2 months, they can kill pathogens such as viruses, bacteria, and parasite eggs. However, this method is not suitable for epidemics caused by spore pathogens such as anthrax and emphysema. The feces of such epidemics should be burned or buried deeply.
Second, the implementation of disinfection
1. Regular disinfection
2-4 times a year, at least once in the spring and autumn. All appliances in the barn should be disinfected once a month.
1 The cowshed floor and manure urine ditch can be disinfected with the following medicines: 5-10% hot alkaline water, 3% caustic soda, 3-5% sursol solution, etc. Spray disinfection, and use 20% lime milk to paint the walls.
2 Feeding equipment, cattle pens, cattle beds, etc. are cleaned and disinfected with 5-10% hot alkaline water or 3% caustic soda solution or 3-5% sura, 2-6 hours after disinfection, before placing the cattle The trough and cattle bed are rinsed with water.
3 After cleaning the stadium, except for net weeds, disinfect with 5-10% hot alkaline water or lime.
2. Temporary disinfection
After cattle have been detected and discarded from the herds, cows, brucellosis or other diseased cattle, the cowsheds, utensils and sports grounds must be temporarily disinfected.
1 Brucellosis When abortion occurs in cattle, the products and contaminated sites and utensils must be completely sterilized.
2 The excreta of sick cows should be piled up in a place away from the cowshed. Biofermentation can only be used as a fertilizer.
3 The delivery room was once sterilized once a month, and the delivery room was sterilized before and after the production of the live cows.
4 All those who have died of or died of botrytis disease, tuberculosis, etc. must be dissected or slaughtered at the designated place under the guidance of veterinary anti-epidemic personnel. The bodies should be disposed of in accordance with relevant national regulations. After the treatment is completed, the staff, venues and utensils in the field are thoroughly disinfected. It is forbidden to dissect cows suspected of being anthrax due to anthrax, and to dispose of them in accordance with relevant national regulations.
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