The fermentation bed was not daring to disinfect.
Cause analysis and recommendations: Many pig farmers have been afraid to use conventional disinfectants to sterilize the fermentation bed, for fear of affecting the ability of microorganisms to cause deathbeds. On this issue, the Daxing District Animal Health Supervision Administration and Beijing Agricultural Vocational College specifically carried out relevant Experiment: After disinfecting with two kinds of chlorine dioxide and Witness disinfectant respectively, the number of bacteria in the 0 cm, -5 cm, and -15 cm fermentation beds will increase with the increase in the time after disinfection. Fall after the rise. The process of declining shows that the disinfectant acts to kill the bacteria. The ascending process shows that with the extension of the time after disinfecting, the function of the disinfectant decreases and the bacteria begin to recover. The number of bacteria in different sampling layers recovered to more than 70% at 48 hours after disinfection, and ordinary disinfection had little effect on the amount of bacteria in litter below 30 cm. In theory, the fermentation bed itself has a biological heat sterilization function (thereby having a "sterilization bed"). The temperature of about 50°C in the middle layer can kill most pathogenic bacteria and eggs, and the surface layer can be littered regularly. Turn into the middle layer for high temperature sterilization, so the surface of the bed generally does not need to be disinfected with chemicals.
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