Mechanical removal removes pathogens through mechanical methods such as sweeping, scrubbing, ventilation, and filtration. Although this method is common and commonly used, it cannot achieve the purpose of thorough disinfection. As an auxiliary method, it must be performed in conjunction with other disinfection methods.
The physical disinfection method uses sunlight, ultraviolet rays, drying, high temperature and cooking methods to kill bacteria and viruses.
Chemical disinfection using chemical drugs to kill pathogens is the most common method. The use of disinfecting drugs should consider bactericidal broad spectrum. The drug is easy to use, cheap, easy to promote, effective concentration is low, the effect is fast, the effect is good, odorless, tasteless, does not damage the disinfected items, harmless to humans and animals, stable in nature, Soluble in water, not easily affected by organic matter and other physical and chemical factors, the use of residual or less side effects and other characteristics.
The biological disinfection method contaminates the contaminated feces and ferments them. When the thermophilic bacteria 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.
Regular disinfection is performed 2-4 times a year, at least once in spring and autumn. All appliances in the barn should be disinfected once a month. The following drugs can be used to disinfect the cowshed floor and manure urine: 5% -10% hot alkaline water, 3% caustic soda, 3% -5% lesusol and other spray disinfection, and 20% lime milk is used to paint the walls. Feeding equipment, cattle pens, cattle beds, etc. are scrubbed with 5%-10% hot alkali water or 3% caustic soda solution or 4% lecithin, 2-6 hours after disinfection, before feeding the cattle to the feeding trough And cattle bed rinse with water.
After a temporary sterilized herd has been detected and removed from the TB, Brucellosis or other diseased cattle, the sheds, utensils and sports grounds shall be temporarily sterilized. When brucellosis occurs in aborted cattle, the products and the contaminated sites and utensils must be completely disinfected. The excreta of diseased cattle should be piled up in a place farther away from the cowshed for biofermentation before they can act as fertilizer. The delivery room is sterilized once a month, and the delivery room is sterilized before and after the delivery of the production cows.
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