Routine disinfection of the duck house should be done once a week, and the duck house and surrounding environment should be thoroughly disinfected once a month. If there is an epidemic in the surrounding area, disinfection should be strengthened. Depending on the situation, it must be disinfected twice a week. In the use of disinfectants, two or more duck hospital grade disinfectant should be used alternately to prevent germs from becoming resistant to disinfectants.