Autumn and winter are the seasons where intestinal and respiratory diseases frequently occur in pig farms. The quality of disease prevention and control directly affects the morbidity and clinical casualties of the pigs. Therefore, good vaccination is the most important task, and active defense is established. Medication has a better effect.

Vaccines should be fully warmed to prevent cold stress: In the process of technical guidance, we often encounter farmers who are vaccinated in autumn and winter and do not warm up. This will greatly increase the chance of cold stress. The symptoms are pigs. Breathing faster, skin discoloration or even falling to the ground and vomiting. The temperature difference between the refrigerated vaccine and the body temperature of pigs is less than 34℃. Some pigs are more prone to cold stress due to breed characteristics or special physique. Therefore, it should be noted that the inactivated vaccine must be warmed for at least 2 hours before injecting. Put the vaccine in the bottle. It can be used only if it does not feel cold on the forehead.

Choose to vaccinate when the temperature is right: There are usually two situations for pig farms to vaccinate. One is to vaccinate the pigs when they are fed, and the other is to vaccinate after other tasks such as cleaning the manure. In fact, neither of these two are suitable. You should choose a time when the ambient temperature is suitable for the vaccine, such as 2-3 o'clock in the afternoon. After the vaccine is given, the feces are cleaned and then fed.

Add anti-stress additives to the feed or drinking water: the temperature is low in autumn and winter, the temperature difference between morning and evening is large, and the consumption of pigs is increased. Pay attention to reducing the stress brought by all aspects of production to the pig herd. Select personnel who are skilled in vaccinating for immunization, which can reduce the stress response of the pig herd.

Selection of combined vaccination: Even if measures such as feeding optimization, vaccine warming, and warm-time immunization are taken, the stress caused by vaccination to the pig herd cannot be greatly reduced. The better way is "not to fight", but in order to prevent and control diseases, some vaccines need to be immunized, so the method of "less injections" is recommended. Combined vaccination or combined immunization can solve this problem very well. For example, anti-circle and mycoplasma vaccines are basic vaccines that can improve immunosuppression and increase weight gain. It is recommended to choose Huizhong Biological's round branch combination. This round branch combination can also dilute Huizhong biological swine fever (Hui Wenning) Vaccines can achieve three preventions with one shot, reduce stress, reduce pinhole transmission of blood protozoa, and effectively improve basic immune efficacy.