Effects of Sirrah-Bios PRRSV-RS vaccine on mortality rate and finisher pig performance

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dc.contributor.author Potter, M. L.
dc.contributor.author Henry, Steven C.
dc.contributor.author Tokach, Lisa M.
dc.contributor.author DeRouchey, Joel M.
dc.contributor.author Tokach, Michael D.
dc.contributor.author Goodband, Robert D.
dc.contributor.author Nelssen, Jim L.
dc.contributor.author Dritz, Steven S.
dc.date.accessioned 2009-11-12T18:59:31Z
dc.date.available 2009-11-12T18:59:31Z
dc.date.issued 2009-11-12T18:59:31Z
dc.identifier.uri http://hdl.handle.net/2097/2149
dc.description.abstract A total of 1,561 pigs (initially 4 d of age) were used to determine the effects of a porcine reproductive and respiratory syndrome virus (PRRSv) subunit vaccine, PRRSV-RS (Sirrah-Bios, Ames, IA), on mortality rate and finisher pig growth performance in a PRRSv-positive commercial herd. Pigs were randomly assigned by litter to either the subunit PRRSv vaccine or non-vaccinated control group. Pigs in the vaccinated group received an intramuscular injection of 1 mL PRRSV-RS vaccine at processing (approximately 4 d after birth) and again at weaning (approximately 24 d of age). Vaccinated and control pigs were comingled in a single nursery during the nursery phase. In the finishing phase, pigs were housed in a standard commercial curtain-sided finisher barn by treatment and gender by pen, with treatments randomly distributed across pens. Mortality was tracked from processing (4 d of age) to market (d 187 to 193). There was no difference between the control and vaccinated pigs for cumulative mortality (21.5% vs. 20.6%, P = 0.67) or for mortality during each production phase (processing to weaning: 9.5% vs. 7.1%, P = 0.08; nursery: 9.3% vs. 9.2%, P = 0.95; finishing: 4.4% vs. 5.9%, P = 0.20). Pigs were initially weighed by single-sex pens (control or vaccinated) 2 wk after placement into the finisher (d 0), and at that time, control and vaccinated mean pig weights were not different (58.4 vs. 58.7 lb, P = 0.90). Pens of pigs were subsequently weighed every 2 wk, and feed consumption was recorded to calculate ADG, ADFI, and F/G. Overall (d 0 to 112), control and vaccinated pig performance was similar (ADG: 1.96 vs. 1.93 lb, P = 0.45; ADFI: 5.35 vs. 5.36 lb, P = 0.94; F/G: 2.74 vs. 2.78, P = 0.15) throughout the finishing period. This resulted in no difference (P = 0.79) in off-test (d 112) weights between control (271.9 lb) and vaccinated (270.4 lb) pigs. These data indicate that this subunit PRRSv vaccine did not affect finisher pig performance or mortality in this commercial herd. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Swine day, 2009 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 10-014-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1020 en_US
dc.subject Growth en_US
dc.subject Mortality en_US
dc.subject PRRSv en_US
dc.subject Vaccine en_US
dc.subject Swine en_US
dc.title Effects of Sirrah-Bios PRRSV-RS vaccine on mortality rate and finisher pig performance en_US
dc.type Conference paper en_US
dc.date.published 2009 en_US
dc.citation.epage 37 en_US
dc.citation.spage 33 en_US
dc.description.conference Swine Day, Manhattan, KS, November 19, 2009 en_US
dc.contributor.authoreid dritz en_US
dc.contributor.authoreid jderouch en_US
dc.contributor.authoreid mtokach en_US
dc.contributor.authoreid goodband en_US
dc.contributor.authoreid jnelssen en_US


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