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Bulletin No. 19 - Fall 2004
18th IPVS Congress, Hamburg, Germany, 2004Porcine Reproductive and Respiratory Syndrome (PRRS)
PAPATSIROS VG, KOPTOPOULOS G, ALEXOPOULOS, LONGO S, JOISEL F, KYRIAKIS SC
The effect of vaccination of sows with a PRRSV inactivated vaccine on litter characteristics in a farm suffering from endemic PRRS
Proceedings of the 18th IPVS Congress, Hamburg, Germany, 2004 - Volume 1:146
This study was carried out in a 1000-sow, farrow-to-finish, PRRSV-infected pig farm in which all gilts and sows were vaccinated with Progressis® (Merial). Litter size and characteristics at birth and at weaning were recorded before and after the vaccination period. Unlike modified live vaccines (MLV), Progressis® (inactivated vaccine) was shown not to have negative effects on the health of sows and gilts even when administered during gestation. In addition, vaccination with Progressis® led to a significant increase in the litter size and litter performance, as a result of improved health status and body conditions of piglets.
