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Genetic associations between flight speed and growth traits in Nellore cattle

dc.contributor.authorSant'Anna, A. C. [UNESP]
dc.contributor.authorParanhos da Costa, M. J. R. [UNESP]
dc.contributor.authorBaldi, Fernando [UNESP]
dc.contributor.authorBaldi, Fernando [UNESP]
dc.contributor.authorRueda, P. M. [UNESP]
dc.contributor.authorAlbuquerque, Lucia Galvão de [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-20T13:18:36Z
dc.date.available2014-05-20T13:18:36Z
dc.date.issued2012-10-01
dc.description.abstractThe aim of the present study was to estimate genetic parameters for flight speed and its association with growth traits in Nellore beef cattle. The flight speed (FS) of 7,402 yearling animals was measured, using a device composed of a pair of photoelectric cells. Time interval data (s) were converted to speed (m/s) and faster animals were regarded as more reactive. The growth traits analyzed were weaning weight (WW), ADG from weaning to yearling age, and yearling scrotal circumference (SC). The (co)variance components were estimated using REML in a multitrait analysis applying an animal model. The model included random direct additive genetic and residual effects, fixed effects of contemporary groups, age of dam (classes), and age of animal as covariable. For WW, the model also included maternal genetic and permanent environmental random effects. The direct heritability estimate for FS was 0.26 +/- 0.05 and direct heritability estimates for WW, SC, and ADG were 0.30 +/- 0.01, 0.48 +/- 0.02, and 0.19 +/- 0.01, respectively. Estimates of the genetic correlation between FS and the growth traits were -0.12 +/- 0.07 (WW), -0.13 +/- 0.08 (ADG), and -0.11 +/- 0.07 (SC). Although the values were low, these correlations showed that animals with better temperaments (slower FS) tended to present better performance. It is possible to infer that long-term selection for weight and scrotal circumference can promote a positive genetic response in the temperament of animals. Nevertheless, to obtain faster genetic progress in temperament, it would be necessary to perform direct selection for such trait. Flight speed is an easily measured indicator of temperament and can be included as a selection criterion in breeding programs for Nellore cattle.en
dc.description.affiliationUniv Estadual Paulista, FCAV, Dept Zootecnia, Grp Estudos & Pesquisas Etol & Ecol Anim, BR-14884900 Jaboticabal, Brazil
dc.description.affiliationUniv Estadual Paulista, FCAV, Programa Posgrad Genet & Melhoramento Anim, BR-14884900 Jaboticabal, Brazil
dc.description.affiliationUniv São Paulo, FMVZ, Dept Nutr & Prod Anim, BR-13635900 Pirassununga, Brazil
dc.description.affiliationUniv Estadual Paulista, FCAV, Programa Posgrad Zootecnia, BR-14884900 Jaboticabal, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, FCAV, Dept Zootecnia, Grp Estudos & Pesquisas Etol & Ecol Anim, BR-14884900 Jaboticabal, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, FCAV, Programa Posgrad Genet & Melhoramento Anim, BR-14884900 Jaboticabal, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, FCAV, Programa Posgrad Zootecnia, BR-14884900 Jaboticabal, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 09/53609-7
dc.format.extent3427-3432
dc.identifierhttp://dx.doi.org/10.2527/jas2011-5044
dc.identifier.citationJournal of Animal Science. Champaign: Amer Soc Animal Science, v. 90, n. 10, p. 3427-3432, 2012.
dc.identifier.doi10.2527/jas2011-5044
dc.identifier.issn0021-8812
dc.identifier.lattes5866981114947883
dc.identifier.urihttp://hdl.handle.net/11449/4617
dc.identifier.wosWOS:000309590700013
dc.language.isoeng
dc.publisherAmer Soc Animal Science
dc.relation.ispartofJournal of Animal Science
dc.relation.ispartofjcr1.711
dc.relation.ispartofsjr0,848
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectaverage daily gainen
dc.subjectGenetic correlationen
dc.subjectHeritabilityen
dc.subjectscrotal circumferenceen
dc.subjectTemperamenten
dc.titleGenetic associations between flight speed and growth traits in Nellore cattleen
dc.typeArtigo
dcterms.licensehttp://journalofanimalscience.org/site/misc/ifora.xhtml
dcterms.rightsHolderAmer Soc Animal Science
dspace.entity.typePublication
unesp.author.lattes5866981114947883
unesp.author.orcid0000-0002-2030-7590[6]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt
unesp.departmentZootecnia - FCAVpt

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