How to prevent highly pathogenic porcine blue ear disease in large-scale pig farms?

A: To prevent "highly pathogenic porcine blue ear disease" in large-scale pig farms, we must adhere to comprehensive measures such as scientific feeding, self-reproduction, prevention first, strengthening comprehensive feeding management and adopting reasonable immunization procedures. The main points are as follows: First, insist on self-breeding, do not introduce pigs from other places, and implement all-out and all-in pigs to prevent the introduction of the epidemic. The second is to strengthen feeding management. Ensure warm and ventilated pigsty in winter; In hot summer, it is necessary to do a good job of ventilation and heatstroke prevention and cooling in piggery, provide sufficient clean drinking water, keep piggery dry, maintain reasonable feeding density and reduce emergency factors. Ensure adequate nutrition and enhance the disease resistance of pigs. The third is to establish a strict isolation and disinfection system. Pig farms should implement closed feeding management, and it is strictly forbidden for people who have nothing to do with production to enter the production area, and production personnel should be strictly disinfected in and out. Do a good job in environmental sanitation, remove manure and excreta from pig houses in time, and treat all kinds of pollutants harmlessly. Increase the number of disinfection in and around farms and pig houses, do a good job in environmental pest control, and prevent diseases caused by insects and other media. The fourth is to adhere to scientific immunization. Formulate a reasonable immunization program to immunize highly pathogenic porcine blue ear disease on time and in quantity. Under normal circumstances, the first immunization dose of commercial piglets after weaning is 2 ml; In the epidemic area of highly pathogenic porcine blue ear disease, the same dose of booster immunization 1 time can be used according to the actual situation after the first immunization; The inoculation procedure of reserve sows before 70 days old is the same as that of commercial piglets; After that, every time before 1 month delivery, pregnant sows were given 1 time booster immunization with a dose of 4 ml; The inoculation procedure of boars before the age of 70 days is the same as that of commercial piglets; After that, the immunization was strengthened every 6 months 1 time with a dose of 4 ml. When an animal epidemic occurs in the surrounding areas, emergency immunization should be carried out. The fifth is drug prevention. Make a reasonable medication plan, select appropriate preventive antibacterial drugs in feed, prevent bacterial infection in pigs and improve health level.