Vaccination of Sows against Porcine Circovirus Type 2 (PCV2) in a Subclinically Infected Herd Does Not Impact Reproductive Performance
Cybulski, Piotr | Woźniak, Aleksandra | Podgórska, Katarzyna | Stadejek, Tomasz
Porcine circovirus type 2 (PCV2) vaccination in piglets has become one of the crucial and indisputable procedures in modern swine production. The role of PCV2 vaccination in breeding animals is less explored. In the present study, the evaluation of the impact of sow vaccination on reproductive parameters was performed in a high health status, PCV2 subclinically infected herd of 3200 sows. The comparison of the number of liveborn, stillborn, and weak born piglets between groups of sows vaccinated on 1 or 28 days after weaning, or nonvaccinated, did not show any statistically significant differences. Although in the tested farm the vaccination of sows appeared to have no effect on reproductive performance, the results should not be generalized. Careful and individualized analysis of diagnostic and production data is crucial in economizing infectious disease control programs in sow herds and pig populations.
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