How do livestock and poultry farmers prevent and control diseases? _

(1)_Adhere to the principle of “prevention first, comprehensive prevention and control”. _(2)_Strengthen feeding management, rationally mix livestock and poultry feeds, strictly prohibit feeding moldy feeds and expired concentrated feeds and pellet feeds, and feed clean and hygienic water. Feeding and management must be especially strengthened for livestock and poultry with weak constitutions, and appropriate Increase concentrate feeding to ensure feed nutrition. Observe whether the animal's appetite, defecation, and urination are normal at any time. Once abnormalities occur, they should be diagnosed quickly. Adhere to self-propagation and self-support and reduce the introduction of foreign diseases. _(3)_Practice strict disinfection. Specific methods: First, set up a disinfection pool at the entrance of the breeding house and change the disinfectant frequently; second, implement "all in, all out", empty pens should be flushed, disinfected, and then ventilated; third, the environment of the farm must be cleaned every month , disinfection, and fermentation of feces according to regulations; fourth, purchase and sale personnel, including breeders, must be disinfected, and irrelevant personnel are strictly prohibited from entering the breeding area. _(4)_Develop a scientific immunization program. In spring and autumn, vaccines for foot-and-mouth disease and swine fever must be administered, and poultry must be vaccinated against avian influenza, avian cholera, Newcastle disease, etc. The local medical station will decide whether to be immune to other vaccines based on past epidemics.