Several problems that should be paid attention to in disinfection of large-scale farms

farms

Farm disinfection work is an important measure to prevent and prevent infection, occurrence, spread, epidemic and control of infectious diseases. Large-scale farms often carry out disinfection. However, due to some farmers 'lack of understanding of disinfection work and non-standard disinfection technology, disinfection technology is not thorough, disease prevention and control difficulty increases, causing serious economic losses to farms. In Yangguang Town, Tonghai County, we found the following problems worthy of consideration by pig friends during the disinfection process of pig science and technology demonstration households.

1. Selection of disinfectant

First, according to the characteristics of killing pathogenic microorganisms, such as bacteria, viruses, parasites, bacterial spores, etc., the selection of appropriate disinfectants is the key to the success or failure of disinfection work, such as coronavirus is sensitive to chlorine-containing disinfectants, formaldehyde, potassium permanganate, iodine, peracetic acid, etc. Second, kill pathogens spectrum to be wide, disinfection speed, stable nature, easily soluble in water, colorless, tasteless, odorless. Third, it is non-corrosive to articles, easy to remove residues, low toxicity, easy transportation and storage.

2. Read the instructions for use of drugs in detail and use disinfectants correctly.

Disinfection solution shall be prepared according to the provisions and requirements of the instructions for use of disinfection drugs. Do not arbitrarily increase or decrease the concentration of drugs. Do not mix two different disinfectants or disinfect the same article at the same time [3].

3. Pay attention to the influence of environmental temperature and humidity on disinfectants

Pay attention to factors such as temperature, humidity, pH and organic matter that affect disinfection effect, and ensure that disinfection drugs have sufficient dosage and sufficient action time to ensure the expected disinfection effect.

4. Pay attention to disinfection of corners, corners, windowsills, railings, etc.

Prepare in strict accordance with the specified use concentration of disinfectant drugs, spray evenly to achieve moist feeling, do not pursue more disinfection times, and disinfect thoroughly each time.

5. Concentration and time of disinfectant

Generally speaking, the higher the concentration of disinfectant, the stronger the bactericidal power, but with the increase of disinfectant concentration, the toxicity to living tissues (livestock and poultry) will increase accordingly. On the other hand, some disinfectants when more than a certain concentration, disinfection effect is weakened, such as 70%~75% alcohol sterilization effect is better than 95% alcohol. The efficacy of disinfectants is proportional to the disinfection time, and the longer the contact and action time with pathogenic microorganisms, the better the disinfection effect. Therefore, the disinfection time should not be too short.

6. Most disinfection drugs have certain toxic side effects and corrosivity on humans, animals and articles.

Attention should be paid to human and animal safety and personal protection when using, so as to avoid damage (injury) of disinfection drugs to human and animal.