In October, the whole region started the autumn epidemic prevention of live pigs, and one of the key points was to make the swine fever immune. In recent years, there has been a rebound in the outbreak of swine fever, with atypical swine fever (also known as mild swine fever). For this reason, the following ten technical steps must be mastered in order to increase the immune effect of swine fever. Do a good job of vaccine transport refrigeration. The temperature of the vaccine is between -2°C and -3°C in the freezer. Keep it out of the warehouse and keep it transported at a low temperature. Avoid direct exposure to the sun. When you get out from the town to the village or field, use a newspaper to wrap the vaccine and put it in ice. Nylon bag. More than 25 °C vaccine will fail. View the vaccine label when used. Pay attention to the validity period, and do not use damaged or vacuumed seedlings. The vaccine is now ready for use. Diluted with refrigerated physiological saline, the diluted vaccine was used for no more than 3 hours (October). In the rural households, epidemic prevention, the diluted vaccine should be wrapped in old cotton wrap, wrapped in ice to keep warm. It is advisable to use pigs for injection. Ask the livestock owner to see if the pigs eat and eat. Look at the feces and spirits. Do not inject diarrhea or feedstuffs into the affected pigs. The first-born sows, pregnant sows, and freshly-cut pigs will not be injected. The syringe and needle are cleaned before use. Boil and sterilize for 15 minutes. Do not sterilize with light water. Stick a needle to a pig. The length of the needle is suitable. Large pigs use an 18-gauge needle (2.5-3.0 cm), and 100 kg or more use a 16-gauge needle (3.8-4.4 cm). The needle is not long enough, the vaccine is injected into the fat layer of the pig, and the immune effect is poor. Accurate dose. The dose is closely related to the immune effect. Currently used in China (C strain) pig plague rabbit attenuated vaccine dose of one containing 150RID (rabbit response), while the European Pharmacopoeia stipulates that the use of C strain vaccine dose is 400RID, China's application is only European standard 37.5 %. Therefore, most scholars have proposed to increase the dose: 4-5 pigs per piglet; 2-3 piglets per piglet; 4 piglets have the best effect when the maternal antibody of piglets is above 1:32 (about 25 days of age). The vaccine should be shaken when injected to prevent precipitation. As long as the pig is in Baoding, the site is accurate and does not hit the flying needle. The injection site was sterilized with 2.5% iodine or 75% alcohol without high concentrations of iodine and alcohol. After injection, ear tags are attached. The immunization procedure is reasonable. The half-life of classical swine fever maternal antibodies is 10 days, and the maternal antibodies are protected before 20 days of age. Protection decreased after 25 days of age. Therefore, the procedure for the second immunization of piglets at 25 days and 65 days is good. If they are immunized early, they will be attenuated by maternal antibodies and neutralize the vaccine, resulting in poor results. Sows are immunized after weaning and boars are immunized twice a year. Immunization coverage is high. The immunity density of a town or a farm should be above 95%, and the overall immune level is high. The risk of swine fever is small. Anti-epidemic inspection. Pigs were examined within 1-3 days after the injection and the responding pigs were treated promptly. Responsive treatment of cured pigs, still 10 days after the disease is good to supplement the vaccine. China Agricultural Network Editor