1. Empty period: Injecting swine fever and swine erysipelas two-stage vaccine (or triple vaccine combined with swine plague), intramuscular injection 4 times.
2. Once a year, the parvovirus inactivated vaccine is injected once, and no injection is possible after 3 years.
3. In the spring of March to April, the encephalitis B seedlings are injected intramuscularly once a year, and after 3 years no injection is possible.
4. Preincubation of inactivated vaccine by intramuscular injection for 2 weeks before delivery.
5. The K88, K99, 987P E. coli vaccines were injected 45 days and 15 days before delivery.
6. 45 days before delivery, intramuscular injection of contagious gastroenteritis, epidemic diarrhea two-joint seedlings.
7. 35 days before birth, subcutaneous injection of infectious atrophic rhinitis inactivated vaccine.
8. 30 days before delivery, intramuscular injection of red piglet vaccine.
9. 25 days before delivery, intramuscular injection of infectious gastroenteritis, epidemic diarrhea two-joint seedlings.
10. Inactivated vaccine for pseudorabies in pigs by intramuscular injection for 13 days before birth.
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