Effects of North American porcine reproductive and respiratory syndrome virus (PRRSV)-based modified live vaccines on preimmunized sows artificially inseminated with European PRRSV-spiked semen.

ABSTRACT: The objective of the present study was to determine if the European porcine reproductive and respiratory syndrome virus (PRRSV) can be transmitted via spiked semen to preimmunized sows and induce reproductive failure. Sows were immunized with the North American PRRSV-based modified live vaccine (Ingelvac PRRS MLV; Boehringer Ingelheim Animal Health, St. Joseph, MO) and were artificially inseminated. The sows were randomly divided into three groups. The vaccinated (group 2) and nonvaccinated (group 3) sows developed a PRRSV viremia at 7 to 28 days postinsemination with the European PRRSV-spiked semen. The number of genomic copies of the European PRRSV in serum samples was not significantly different between vaccinated and nonvaccinated sows. All negative-control sows in group 1 farrowed at

SUBMITTER: Han K 

PROVIDER: S-EPMC3294617 | biostudies-literature | 2012 Mar

REPOSITORIES: biostudies-literature