Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/5964
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dc.contributor.authorLewis, Craigen
dc.contributor.authorTorremorell, Men
dc.contributor.authorBishop, S Cen
dc.date.accessioned2010-05-25T15:43:00Z-
dc.date.issued2009-
dc.identifier.citationJournal of Swine Health and Production, 17(3), p. 140-147en
dc.identifier.issn1066-4963en
dc.identifier.issn1537-209Xen
dc.identifier.urihttps://hdl.handle.net/1959.11/5964-
dc.description.abstractObjectives: To examine the parity and genetic-line differences and trends for major sow reproductive traits during an outbreak of porcine reproductive and respiratory syndrome (PRRS) and to determine whether specific parities or genetic lines are more severely affected by PRRS virus. Materials and methods: Reproductive performance data (gestation length, total piglets in utero, total piglets born alive, total piglets born dead, total mummified piglets born, total stillborn, and total weaned) were obtained from a commercial herd in China (8098 litters from 1820 sows) from differing genetic lines (Landrace, Large White, Pietrain, Meishan, Duroc composite, and various crosses). The dataset was partitioned into a baseline and a disease phase. Statistical analysis compared performance differences between these two phases for sows of different parities and lines. Results: PRRS caused significant production losses, impacting most reproductive traits. However, the impacts were greater in early parities, eg, the numbers of mummified piglets per litter were greater for sows of lower parities (1 through 5) than older sows (parities 6 through 11), for which there were no differences between disease and baseline data. Line differences and interactions were also detected, highlighting a greater impact of PRRS virus on the Meishan line than on their European counterparts. Implications: Parity should be considered when examining host genetic resistance to PRRS virus and when designing management strategies. The Meishan line may be more susceptible to reproductive PRRS. The use of the Meishan-type line to impact fecundity traits in a disease situation should be reconsidered.en
dc.languageenen
dc.publisherAmerican Association of Swine Veterinariansen
dc.relation.ispartofJournal of Swine Health and Productionen
dc.titleEffects of porcine reproductive and respiratory syndrome virus infection on the performance of commercial sows and gilts of different parities and genetic linesen
dc.typeJournal Articleen
dc.subject.keywordsAnimal Breedingen
local.contributor.firstnameCraigen
local.contributor.firstnameMen
local.contributor.firstnameS Cen
local.subject.for2008070201 Animal Breedingen
local.subject.seo2008830308 Pigsen
local.profile.emailclewis21@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20100422-151319en
local.publisher.placeUnited States of Americaen
local.format.startpage140en
local.format.endpage147en
local.peerreviewedYesen
local.identifier.volume17en
local.identifier.issue3en
local.contributor.lastnameLewisen
local.contributor.lastnameTorremorellen
local.contributor.lastnameBishopen
dc.identifier.staffune-id:clewis21en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:6108en
dc.identifier.academiclevelAcademicen
local.title.maintitleEffects of porcine reproductive and respiratory syndrome virus infection on the performance of commercial sows and gilts of different parities and genetic linesen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.relation.urlhttp://www.aasp.org/shap/issues/v17n3/v17n3p140.pdfen
local.search.authorLewis, Craigen
local.search.authorTorremorell, Men
local.search.authorBishop, S Cen
local.uneassociationUnknownen
local.year.published2009en
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