The sow was vaccinated before and after pregnancy. Did you do it right? Deviation has a great influence.

How should sows be vaccinated before and after pregnancy? When should some vaccines be given at the right time? Some pig farmers do not quite understand these. Today, I would like to popularize a little knowledge in this area for your reference.

one

Backup sow

It is best to complete immunization within 1 to 3 months before estrus, not near estrus, because the vaccine response may affect estrus, such as delaying estrus.

two

Sow

The sow lactation period is about 20 days, and the lactation peak has passed. This is a better time for vaccination. If you miss this time, you can be immunized after weaning.

02, with regard to the vaccine made by sows, according to the local conditions, the first two births are generally immunized with parvovirus vaccine.

03. Inactivated FMD vaccine every 4-6 months.

04. parturient sows: swine fever attenuated vaccine before mating; porcine parvovirus inactivated vaccine; porcine pseudorabies gene deletion attenuated vaccine.

05. Parturient sows: attenuated vaccine against classical swine fever before breeding; attenuated vaccine with gene deletion of pseudorabies in 4-6 weeks before delivery; combined vaccine of transmissible gastroenteritis and epidemic diarrhea.

Note: Japanese encephalitis epidemic or threatened areas are immunized with Japanese encephalitis vaccine twice a month every year from March to May (1-2 months before mosquitoes appear). Spleen gonorrhea vaccine is recommended for classical swine fever attenuated vaccine, and immunization can be selected according to the local epidemic situation.

three

Procedure of immunization for pregnant sows

The immunization of pregnant sows should be based on the immune status of animals and the epidemic season of infectious diseases, combined with the local epidemic situation and the immune characteristics of various vaccines, reasonably arrange the times and intervals of vaccination, and formulate immunization procedures.

01. Porcine encephalitis B

The injection time is from March to April every year, when the mosquitoes are not active, no later than early May in the south and no later than late May in the north. Generally, you can be vaccinated once, and you can make up the inoculation in the early stage of pregnancy, but you must be injected with 2 doses.

02. Porcine parvovirus disease

The injection time should be one month before mating or at the same time with Japanese encephalitis live vaccine. Note that this vaccine must be injected before and after mating.

03. Classical swine fever

After weaning sows were intramuscularly injected with 4 doses of live classical swine fever vaccine or live vaccine of classical swine fever and erysipelas, which was the most suitable period for live vaccine injection.

Note: the immunization method in spring and autumn is no longer used, because after injecting classical swine fever during pregnancy, the attenuated classical swine fever virus can enter the fetus through the placenta and cause the fetus to carry the virus. The occurrence of newborn piglets swine fever or detoxification to the outside world, pollution of the environment.

04. Swine erysipelas

Inoculated twice a year, clinically often vaccinated with classical swine fever at the same time, can be vaccinated with live erysipelas vaccine.

05. Yellow and white dysentery of piglets

Choose whether to be immune or not according to the situation of the pig farm.

Red dysentery of piglets (also known as Clostridium welchii type C)

Choose whether to be immune or not according to the situation of the pig farm.

07. Streptococcus suis

The live vaccine of Streptococcus suis was used in sows one month before delivery, and the immunity was produced 7 days after injection, which can last for 9 months, which can effectively prevent the disease of suckling piglets and prevent streptococcosis in sows. Choose whether to be immune or not according to the situation of the pig farm.

08. Porcine pseudorabies

Intramuscular injection before mating or early pregnancy can prevent pregnant sows from miscarriage, premature delivery, stillbirth and mummies caused by pseudorabies virus infection. (for example, in order to prevent the disease of suckling piglets, they can be injected intramuscularly one month before delivery, and the piglets can get anti-pseudorabies immune antibodies from milk for 3-4 weeks).

09. Porcine viral diarrhea, infectious gastrointestinal tract

One month before the delivery of sows, Houhai acupoint injection (Houhai acupoint is located in the depression between anus and tail), live vaccine of oil adjuvant for porcine viral diarrhea infectious gastritis, injection time is from December to March of the following year, it can effectively prevent the disease of sows and suckling piglets (there are immune antibodies in milk).

10. Foot-and-mouth disease of pigs

Twice a year, sows are injected during the empty pregnancy period after weaning!

Note: during the whole pregnancy, try not to immunize other vaccines except those that are necessary for epidemic prevention, because it is often not clear whether the vaccine will have an impact on the fetus. If there is a vaccine that has to be done, it is best to test a few heads first, and then apply it in large groups without adverse reactions.