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dc.contributor.authorALFONZO, E. P.pt_BR
dc.contributor.authorSILVA, M. V. G. B.pt_BR
dc.contributor.authorSANTOS, D. D. dospt_BR
dc.contributor.authorSTUMPF, M. T.pt_BR
dc.contributor.authorDALCIN, V. C.pt_BR
dc.contributor.authorKOLLING, G.pt_BR
dc.contributor.authorFISCHER, V.pt_BR
dc.contributor.authorMcMANUS, C. M.pt_BR
dc.date.accessioned2016-02-17T11:11:11Zpt_BR
dc.date.available2016-02-17T11:11:11Zpt_BR
dc.date.created2016-02-17pt_BR
dc.date.issued2015pt_BR
dc.identifier.citationInternational Journal of Biometeorology, v. 60, n. 2, p. 245-353, 2015.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1037406pt_BR
dc.descriptionDairy cattle raised under harsh conditions have to adapt and prevent heat stress. The aim of this study was to evaluate physical characteristics and their association with heat tolerance in different genetic groups of dairy cattle. Thickness of the skin and coat, length and number of hairs, body measurements, as well as physiological parameters and body temperatures by infrared thermography were determined in 19 Holstein and 19 Girolando (½ and ¾ Holstein) cows. The Holstein cattle were less tolerant to heat stress than Girolando (GH50 and GH75 Holstein), because of the difficulty in dissipating heat due to the larger body size, as well as thicker and longer hairs. The correlations between physical characteristics, physiological parameters, and thermographic measurements prove to be inconsistent among genetic groups and therefore are not predictive of heat tolerance, while the regressions of morphometric characteristics on physiological and thermographic measures were not significant. Thus, the physical characteristics were not good predictors of physiological indices and thermographic temperature and so should not be used.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectCoat and cowspt_BR
dc.subjectTolerancept_BR
dc.titleRelationship between physical attributes and heat stress in dairy cattle from different genetic groups.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2016-03-14T11:11:11Zpt_BR
dc.subject.nalthesaurusthermographypt_BR
riaa.ainfo.id1037406pt_BR
riaa.ainfo.lastupdate2016-03-14pt_BR
dc.contributor.institutionE. P. ALFONZO, UFRGS; MARCOS VINICIUS GUALBERTO B SILVA, CNPGL; Daltro D. dos Santos, UFRGS; M. T. STUMPF, UFRGS; V. C. DALCIN, UFRGS; G. KOLLING, UFRGS; V. FISCHER, UFRGS; M. C. McMANUS, UFRGS; UnB.pt_BR
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