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Bulletin No. 19 - Fall 2004
18th IPVS Congress, Hamburg, Germany, 2004Porcine Reproductive and Respiratory Syndrome (PRRS)
BERNAL R, CALLEN A
Gilt acclimatization under field conditions in Spain
Proceedings of the 18th IPVS Congress, Hamburg, Germany, 2004 - Volume 2:605
This study consisted in determining the effect of vaccinating PRRSV-negative gilts with Progressis® (Merial) before their introduction into a PRRSV-positive farm when compared to another farm with similar health status, in which restocking gilts were introduced without being vaccinated. The fertility rate was significantly higher in the group of vaccinated gilts. Seroconversion occurred later in vaccinated gilts than in non-vaccinated gilts. Moreover, while reproduction disorders were observed in the non-vaccinated gilt farm, the situation remained normal in the vaccinated-gilt farm. The use of Progressis® was thus beneficial and allowed to minimize acclimatization disorders in PRRSV-negative gilts introduced in a PRRSV-positive herd.
