What are the precautions for pig immunization? Pig farmers need to master these key points

@#@227@#@farmers immunize their pigs once, twice or more times every year, but the pigs still contract infectious diseases they have been immunized against, causing huge losses. What is the reason? This has a great deal to do with neglecting the precautions for immunization. Therefore, we offer a reminder to pig farmers.

First, be careful to buy vaccines from reliable sources. Vaccines or bacterial vaccines need to be managed by special methods so they do not lose their efficacy. Before buying a vaccine or bacterial vaccine, confirm whether the department selling the vaccine has a certain level of technical capability, so as to ensure the efficacy of the vaccine or bacterial vaccine.

Second, pay attention to the expiry date of the vaccine or bacterial vaccine. When buying a certain vaccine or bacterial vaccine, be sure to pay attention to the expiry date and ensure it is within the validity period before buying, and keep a record of the name of the vaccine or bacterial vaccine, manufacturer, production batch number, instructions for use, expiry date, purchasing department and purchase date, for future reference.

Third, pay attention to pre-diluting the vaccine or bacterial vaccine. In rural areas, each household raises a relatively small number of pigs, or a single pig farmer cannot use up a bottle of vaccine or bacterial vaccine, so the vaccine or bacterial vaccine must be diluted in advance, then distributed to users in sterilized small bottles according to each household's dosage. These small bottles should be placed in a container filled with cold water and carried back, and used as soon as possible, preferably within 2-4 hours. Never use diluted vaccine or bacterial vaccine left overnight; diluted vaccine or bacterial vaccine left overnight should be disinfected and then disposed of.

Fourth, pay attention to the storage and transport of vaccines or bacterial vaccines. Vaccines or bacterial vaccines should be stored and transported at temperatures below 0°C or at 2-8°C.

Fifth, be careful to avoid diluting vaccines and bacterial vaccines under direct sunlight. Vaccines or bacterial vaccines should be diluted and distributed in a shady place.

Sixth, be careful not to vaccinate sick or weak pigs with vaccines or bacterial vaccines. The immune systems of sick and weak pigs are relatively weak, and after vaccination with vaccines or bacterial vaccines they cannot withstand the challenge of the vaccines or bacterial vaccines, and the condition may even worsen. Therefore, vaccination with vaccines or bacterial vaccines should wait until the sick pigs have recovered.

Seventh, be careful to operate very cautiously when injecting vaccines or bacterial vaccines into pregnant sows, so as to avoid causing miscarriage.

Eighth, pay attention to the use of antibiotics and disinfectants before and after vaccination with vaccines or bacterial vaccines. Before vaccination, antibiotics and disinfectants should not be used on pigs for 3 days before and 3 days after vaccination. Especially when vaccinating with bacterial vaccines, it is required that no antibacterial drugs should be used for 1 week before and 10 days after vaccination; otherwise, another immunization injection should be given after 2 weeks of recovery.

Ninth, pay attention to disinfecting the equipment and vaccine bottles after vaccination with live vaccines or live bacterial vaccines.

Tenth, note that when bacterial vaccines are given orally, the feed and water used to mix the vaccine must not be acidic, and spoiled or fermented feed must not be used, nor hot water or hot food. Before feeding the bacteria, the utensils must be washed with alkaline water. For pigs raised in groups, it is best to feed the vaccine separately by size so that every pig can receive the prescribed dose of vaccine. The vaccine must be fed on an empty stomach, preferably in the early morning, and feeding of food is permitted only after 30 minutes following the bacterial feeding.

Eleventh, after injection vaccination with vaccines or bacterial vaccines, if there is an epidemic situation nearby, in order to strengthen immunity, another booster immunization should be given.