Thermal efficiency of individual shelters for girolando calves in brazilian semi-arid regions

Detalhes bibliográficos
Autor(a) principal: Almeida,Gledson L. P. de
Data de Publicação: 2016
Outros Autores: Pandorfi,Héliton, Baptista,Fátima, Guiselini,Cristiane, Barnabé,Janice M. C
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Engenharia Agrícola
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000100013
Resumo: ABSTRACT The objective of this research was to evaluate the thermal efficiency of roofs used on individual shelters during milk-feeding stage of Girolando calves. The research was conducted at a farm located in a dry region of Pernambuco state, Brazil. The experimental design was completely randomized, with 27 Holstein × Gir dairy crossbred calves housed in shelters with three roofing materials (fibre cement tile, recycled tile, and thatched roofs). The recycled tiles and thatched roofs provided reductions of 18.7 and 14.6% in radiant thermal load, respectively. Regardless the roofing material, all animals increased their respiratory rate to maintain thermal equilibrium.
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spelling Thermal efficiency of individual shelters for girolando calves in brazilian semi-arid regionsambiencedairy cattleroofing materialsthermographyABSTRACT The objective of this research was to evaluate the thermal efficiency of roofs used on individual shelters during milk-feeding stage of Girolando calves. The research was conducted at a farm located in a dry region of Pernambuco state, Brazil. The experimental design was completely randomized, with 27 Holstein × Gir dairy crossbred calves housed in shelters with three roofing materials (fibre cement tile, recycled tile, and thatched roofs). The recycled tiles and thatched roofs provided reductions of 18.7 and 14.6% in radiant thermal load, respectively. Regardless the roofing material, all animals increased their respiratory rate to maintain thermal equilibrium.Associação Brasileira de Engenharia Agrícola2016-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000100013Engenharia Agrícola v.36 n.1 2016reponame:Engenharia Agrícolainstname:Associação Brasileira de Engenharia Agrícola (SBEA)instacron:SBEA10.1590/1809-4430-Eng.Agric.v36n1p13-23/2016info:eu-repo/semantics/openAccessAlmeida,Gledson L. P. dePandorfi,HélitonBaptista,FátimaGuiselini,CristianeBarnabé,Janice M. Ceng2016-04-20T00:00:00Zoai:scielo:S0100-69162016000100013Revistahttp://www.engenhariaagricola.org.br/ORGhttps://old.scielo.br/oai/scielo-oai.phprevistasbea@sbea.org.br||sbea@sbea.org.br1809-44300100-6916opendoar:2016-04-20T00:00Engenharia Agrícola - Associação Brasileira de Engenharia Agrícola (SBEA)false
dc.title.none.fl_str_mv Thermal efficiency of individual shelters for girolando calves in brazilian semi-arid regions
title Thermal efficiency of individual shelters for girolando calves in brazilian semi-arid regions
spellingShingle Thermal efficiency of individual shelters for girolando calves in brazilian semi-arid regions
Almeida,Gledson L. P. de
ambience
dairy cattle
roofing materials
thermography
title_short Thermal efficiency of individual shelters for girolando calves in brazilian semi-arid regions
title_full Thermal efficiency of individual shelters for girolando calves in brazilian semi-arid regions
title_fullStr Thermal efficiency of individual shelters for girolando calves in brazilian semi-arid regions
title_full_unstemmed Thermal efficiency of individual shelters for girolando calves in brazilian semi-arid regions
title_sort Thermal efficiency of individual shelters for girolando calves in brazilian semi-arid regions
author Almeida,Gledson L. P. de
author_facet Almeida,Gledson L. P. de
Pandorfi,Héliton
Baptista,Fátima
Guiselini,Cristiane
Barnabé,Janice M. C
author_role author
author2 Pandorfi,Héliton
Baptista,Fátima
Guiselini,Cristiane
Barnabé,Janice M. C
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Almeida,Gledson L. P. de
Pandorfi,Héliton
Baptista,Fátima
Guiselini,Cristiane
Barnabé,Janice M. C
dc.subject.por.fl_str_mv ambience
dairy cattle
roofing materials
thermography
topic ambience
dairy cattle
roofing materials
thermography
description ABSTRACT The objective of this research was to evaluate the thermal efficiency of roofs used on individual shelters during milk-feeding stage of Girolando calves. The research was conducted at a farm located in a dry region of Pernambuco state, Brazil. The experimental design was completely randomized, with 27 Holstein × Gir dairy crossbred calves housed in shelters with three roofing materials (fibre cement tile, recycled tile, and thatched roofs). The recycled tiles and thatched roofs provided reductions of 18.7 and 14.6% in radiant thermal load, respectively. Regardless the roofing material, all animals increased their respiratory rate to maintain thermal equilibrium.
publishDate 2016
dc.date.none.fl_str_mv 2016-02-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000100013
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000100013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1809-4430-Eng.Agric.v36n1p13-23/2016
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Engenharia Agrícola
publisher.none.fl_str_mv Associação Brasileira de Engenharia Agrícola
dc.source.none.fl_str_mv Engenharia Agrícola v.36 n.1 2016
reponame:Engenharia Agrícola
instname:Associação Brasileira de Engenharia Agrícola (SBEA)
instacron:SBEA
instname_str Associação Brasileira de Engenharia Agrícola (SBEA)
instacron_str SBEA
institution SBEA
reponame_str Engenharia Agrícola
collection Engenharia Agrícola
repository.name.fl_str_mv Engenharia Agrícola - Associação Brasileira de Engenharia Agrícola (SBEA)
repository.mail.fl_str_mv revistasbea@sbea.org.br||sbea@sbea.org.br
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