What Are the Precautions for Livestock Barn Disinfection? Read This One Article to Understand
Modern farming management emphasizes the all-in, all-out feeding management approach. After one feeding cycle, livestock barns are contaminated with pathogens to varying degrees. To create a clean and hygienic environment for the next feeding cycle, thorough disinfection must be carried out. The process is as follows:
Because different pathogens have different sensitivities to different disinfectants, it is recommended to use different disinfectants for 2 to 3 rounds of disinfection. For the first disinfection, alkaline disinfectants can be used: 1%-2% hot sodium hydroxide can be used for spray disinfection, and 10% lime milk can be used to whitewash walls, pens and floors; for the second disinfection, phenols, surfactants or oxidants (such as peracetic acid) can be used for spray disinfection. To improve the disinfection effect, the spray pressure should be 3.4-67.5 kgf/cm2, and the amount of solution used should be 0.25-0.4 L of diluted solution per 1 sq m. When spray disinfecting, follow the order of disinfecting the barn: the rear part first, then the front part; the ceiling and walls first, then the floor; for the third disinfection, formalin fumigation can be used. In the oxidation method, use formalin 42 ml/m3 and potassium permanganate 21 g/m3; after mixing, high heat is generated and evaporation occurs. In the heating method, use formalin 25 ml/m3, add an equal amount of water, and heat together to evaporate. There should be intervals between each disinfection; after the previous disinfection, rinse and dry before carrying out the next disinfection.
Disinfectants for livestock and poultry disinfection should have the characteristics of broad spectrum and high efficiency, low toxicity and low corrosiveness, and strong adhesion. For disinfection with poultry present, attention should be paid to the temperature of the dilution water and heat preservation measures during high-temperature brooding and cold winter seasons, and disinfectants should preferably be rotated monthly; within the 2 days before and after vaccination of the flock with attenuated vaccine, a total of 5 days, spray disinfection should be stopped. Zhou Huichang