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第19号公告板 - Fall 2004
18th IPVS Congress, Hamburg, Germany, 2004Porcine Reproductive and Respiratory Syndrome (PRRS)
NILUBOL D, VINCENT A, HARRIS H, THACKER B, THACKER E
Evaluation of antibody responses in PRRSV-exposed sows, their colostrum and 3 to 4 day-old piglets following the use of killed PRRSV vaccine (part 1)
Proceedings of the 18th IPVS Congress, Hamburg, Germany, 2004 - Volume 1:112
Twenty sows from a PRRSV-positive herd were vaccinated with a killed PRRSV vaccine (PRRomiSe®, Intervet) while other 20 were kept as controls. The antibody level of sows was determined by SN assay and ELISA using two strains of PRRSV (the strain from which was designed the vaccine and another one), prior to vaccination, 3 days after farrowing and at weaning, that of their colostrum and their piglets was evaluated as well. A significant increase in antibody levels were observed in vaccinated sows against the vaccine strain. Colostrum of vaccinated sows had higher antibody titers against both strains and piglets born of vaccinated sows had significantly higher antibody levels against the vaccine strain. Higher antibody levels in sows and maternally derived antibody levels in their piglets were thus achieved with the use of a killed vaccine.
