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dc.contributor.authorCavalcante Neto, A.-
dc.contributor.authorLui, J. F.-
dc.contributor.authorSarmento, J. L. R.-
dc.contributor.authorRibeiro, M. N.-
dc.contributor.authorMonteiro, J. M. C.-
dc.contributor.authorFonseca, C.-
dc.contributor.authorTonhati, Humberto-
dc.date.accessioned2014-05-20T13:18:20Z-
dc.date.available2014-05-20T13:18:20Z-
dc.date.issued2009-02-01-
dc.identifierhttp://dx.doi.org/10.1590/S0102-09352009000100040-
dc.identifier.citationArquivo Brasileiro de Medicina Veterinária e Zootecnia. Universidade Federal de Minas Gerais, Escola de Veterinária, v. 61, n. 1, p. 280-285, 2009.-
dc.identifier.issn0102-0935-
dc.identifier.urihttp://hdl.handle.net/11449/4463-
dc.description.abstractThe effect of environmental and genetic effects on the farrowing interval in Dalland (C-40) sows in the Southeast of Brazil was studied. Data consisting of 1,013 farrowing intervals recorded in two herds were analyzed, using a model that included the sire and the dam as random effects and the year of farrowing, the herd and the farrowing season as fixed effects, plus the covariables sow's age at farrowing, litter size at birth, lactation length and weaning-estrus interval. For the farrowing interval first only, variance components were estimated by REML, with an animal model that included, as fixed effect, a contemporary group and, as random effects, the additive genetic variance and the error. The mean farrowing interval was 140.9+5.7 days, with a 4.0% coefficient of variation. Variance analysis showed no effect of either year, season of farrowing or herd on the farrowing interval. The sire effect was not important for the farrowing interval, but the dam represented an important source of variation. The total number of piglets born and the sow's age at farrowing had no influence on the farrowing interval. The length of lactation exerted an influence on the farrowing interval, accounting for 19.4% of the total variation of this trait. Likewise, the linear regression of the weaning-estrus interval in relation to the farrowing interval was highly significant, accounting for 51.7% of the total variation. The heritability estimate was 0.00, suggesting that no genetic gain can be obtained by selection for a shorter farrowing interval.en
dc.format.extent280-285-
dc.language.isopor-
dc.publisherUniversidade Federal de Minas Gerais (UFMG), Escola de Veterinária-
dc.sourceSciELO-
dc.subjectSwineen
dc.subjectHeritabilityen
dc.subjectProductivityen
dc.subjectreproductive traiten
dc.subjectSuínopt
dc.subjectCaracterística reprodutivapt
dc.subjectHerdabilidadept
dc.subjectProdutividadept
dc.titleEfeitos genéticos e não-genéticos sobre o intervalo de parto em fêmeas suínas no Sudeste do Brasilpt
dc.title.alternativeGenetic and environmental effects on the farrowing interval in sows in the southeastern region of Brazilen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Federal do Piauí (UFPI)-
dc.contributor.institutionUniversidade Federal Rural de Pernambuco (UFRPE)-
dc.contributor.institutionEscola Agrotécnica Federal-
dc.contributor.institutionUniversidade de Aveiro-
dc.description.affiliationUNESP FCAV-
dc.description.affiliationUNESP Faculdade de Ciências Agrárias e Veterinárias-
dc.description.affiliationUniversidade Federal do Piauí (FUFPI)-
dc.description.affiliationUniversidade Federal Rural de Pernambuco (UFRPE)-
dc.description.affiliationEscola Agrotécnica Federal-
dc.description.affiliationUA CESAM Departamento de Biologia-
dc.description.affiliationUnespUNESP FCAV-
dc.description.affiliationUnespUNESP Faculdade de Ciências Agrárias e Veterinárias-
dc.identifier.doi10.1590/S0102-09352009000100040-
dc.identifier.scieloS0102-09352009000100040-
dc.identifier.wosWOS:000266138400040-
dc.rights.accessRightsAcesso aberto-
dc.identifier.fileS0102-09352009000100040.pdf-
dc.relation.ispartofArquivo Brasileiro de Medicina Veterinária e Zootecnia-
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