Prevention and treatment of pathogenic blue ear disease in hot and wet pigs in midsummer

The high temperature and humidity environment in midsummer can easily cause the occurrence of highly pathogenic porcine blue ear disease. The guiding principles for the control and eradication of new highly pathogenic porcine blue ear disease are: early detection, early report, early isolation, early monitoring, early disinfection, early extermination and early immunity. In view of this disease, comprehensive prevention and control measures and symptomatic therapy are mainly taken.

pig

One is vaccination. The inactivated vaccine was injected into the retroauricular root muscle. Piglets after weaning (or piglets over 3 weeks old) are first immunized at a rate of 2 ml per pig. according to the epidemic situation of local pigs, they can be vaccinated once on the 28th day after the first immunization. sows and reserve sows are vaccinated before 70 days of age, and the vaccination procedure is the same as that of commercial piglets. After that, the immunization should be boosted every time before breeding, or every 6 months, 4 ml each time. Breeding boars were inoculated before 70 days of age, and the procedure was the same as that of commercial piglets. They were vaccinated once every 6 months, each time 4 ml. Vaccination shall be carried out in accordance with the instructions for the use of the vaccine.

The second is strict disinfection. The viability of the virus in the external environment is poor, disinfection measures are appropriate, the virus is easy to be killed. Aldehydes, chlorine-containing disinfectants, phenols, oxidants and alkalis can be used to thoroughly disinfect pig houses, pens, troughs and utensils at least 2 or 3 times a week to kill the source of the disease and cut off the route of transmission.

The third is scientific management. Keep clean and clean, fresh air, pig feeding density should not be too large, do not hold the principle of squeezing, supply pig nutrition full-price feed, enhance the physique of pigs and resistance to disease.

The fourth is to strictly close the channels for buying pigs. It is strictly forbidden to buy pigs from epidemic areas; you cannot buy foreign trafficked pigs with unknown details and unknown sources; when you buy pigs from the market, you must observe that they are healthy, disease-free and immunized and quarantined before you can buy them.