Can Bos indicus cattle breeds be discriminated by differences in the changes of their sweat gland traits across summer and winter seasons?

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dc.contributor.authorNagib Nascimento, Carolina Cardoso [UNESP]
dc.contributor.authorCarvalho Fonseca, Vinicius de Franca [UNESP]
dc.contributor.authorFuller, Andrea
dc.contributor.authorMelo Costa, Cintia Carol de [UNESP]
dc.contributor.authorBeletti, Marcelo Emilio
dc.contributor.authorBueno de Mattos Nascimento, Mara Regina
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Uberlândia (UFU)
dc.contributor.institutionUniv Witwatersrand
dc.date.accessioned2020-12-10T17:02:17Z
dc.date.available2020-12-10T17:02:17Z
dc.date.issued2019-12-01
dc.description.abstractThis study addresses the hypothesis that Bos indicus cattle breeds can be discriminated by the changes that occur in their sweat gland traits between summer and winter seasons in tropical conditions. Samples of the skin were taken from six Bos indicus cattle breeds (eight subjects per breed), including Nellore, Cangaian, Gyr, Guzerat, Punganur, and Sindhi in winter and summer. The sweat gland epithelium (mu m), glandular portion length (mu m), sweat gland duct length (mu m), gland depth (mu m), and sweat gland density (cm(2)) were determined. Principal component analyses were performed to address the overall structure of breed's group, together with confirmatory analyses by the least squares procedures. Exploratory analysis showed that cattle breeds presented patterns of dissimilarity in the changes in their skin and sweat glands traits between winter and summer seasons. Breeds were separated into three groups under the two principal components, which represented 77.26% of the total variance. The first group was composed of Sindh and Guzerat cattle, which did not present modifications in the parameters assessed between seasons. The most visible alterations were observed in Gyr cattle (third group). In fact, confirmatory analyses showed that glandular portion length, sweat gland duct length, gland depth, and sweat gland density of the Gyr cattle increased (P < 0.05) during the summer season. In conclusion, the results of this investigation demonstrated that morphological traits of the skin and sweat glands associated with seasonal changes in tropical conditions were able to discriminate among Bos indicus cattle breeds.en
dc.description.affiliationSao Paulo State Univ, Biometorol Lab, Innovat Grp Biometeorol Behav & Anim Welf INOBIO, Jaboticabal, Brazil
dc.description.affiliationUniv Fed Uberlandia, Inst Biomed Sci, Lab Histol, Uberlandia, MG, Brazil
dc.description.affiliationUniv Fed Uberlandia, Post Grad Program Vet Sci, Uberlandia, MG, Brazil
dc.description.affiliationUniv Witwatersrand, Sch Physiol, Brain Funct Res Grp, Johannesburg, South Africa
dc.description.affiliationUnespSao Paulo State Univ, Biometorol Lab, Innovat Grp Biometeorol Behav & Anim Welf INOBIO, Jaboticabal, Brazil
dc.format.extent5
dc.identifierhttp://dx.doi.org/10.1016/j.jtherbio.2019.102443
dc.identifier.citationJournal Of Thermal Biology. Oxford: Pergamon-elsevier Science Ltd, v. 86, 5 p., 2019.
dc.identifier.doi10.1016/j.jtherbio.2019.102443
dc.identifier.issn0306-4565
dc.identifier.urihttp://hdl.handle.net/11449/195030
dc.identifier.wosWOS:000501652200019
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal Of Thermal Biology
dc.sourceWeb of Science
dc.subjectHot climate
dc.subjectPhenotypic plasticity
dc.subjectSkin traits
dc.subjectTropical cattle breeds
dc.titleCan Bos indicus cattle breeds be discriminated by differences in the changes of their sweat gland traits across summer and winter seasons?en
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.orcid0000-0002-0838-7786[1]

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