The foot-and-mouth disease virus forms aerosols on the particles in the air. In the season when the climate changes greatly in the late fall and early winter, the spread is often accelerated. At this time, the epidemic prevention work of the farm should be done.
The main source of infection of foot-and-mouth disease is sick pigs, which disperse highly infectious viruses through blisters, excretions, secretions, exhaled gases, etc., contaminating feed, water, air, appliances and the environment. After slaughter, the virus is also spread out through unsterilized meat, viscera, blood, fur and wastewater.
The most prevalent serotypes for foot-and-mouth disease in Asia are O, A and Asia type 1. The only one that is sensitive to pigs is type O, so we are now using vaccines for type O. In addition to the vaccines purchased by the government, the choice of vaccines can also be used to inquire about the vaccines that are effective. Before vaccination, disinfection should be done to keep the environment clean and hygienic; pigs should be inspected, sick, thin or sows should not be injected; two or three days before vaccination, anti-stress drugs can be added to pigs.
30 minutes after the vaccination, pay attention to observe the pig's reaction, and make a record, indicating the vaccine manufacturer, production batch number, production date, packaging specifications, injection dose, for review. It is not necessary to strengthen the immunization, which is completely determined according to the situation of the farm.
The acid disinfectant is more effective against foot-and-mouth disease virus, and the effects of vinegar, high temperature, bacillus and Weikang on foot-and-mouth disease are also good.
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