Spatial variability of enthalpy and illuminance in free-range broiler sheds

Detalhes bibliográficos
Autor(a) principal: Faustino,Amélia C.
Data de Publicação: 2021
Outros Autores: Turco,Silvia H. N., Silva Junior,René G. C., Miranda,Isadora B., Anjos,Italo E., Lourençoni,Dian
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662021000500340
Resumo: ABSTRACT Free-range broiler producers are concerned with the thermal environment and lighting of their facilities and seek to improve these factors for the increased welfare of their broilers. The objective of this study was to evaluate the spatialization of illuminance and enthalpy in two free-range broiler sheds, one of masonry with a clay tile roof and the other built of wood with a straw roof. The data on air temperature, relative air humidity, and illuminance were recorded between September and October 2018 for five non-consecutive weeks in two periods during the day: morning (9 hours) and afternoon (15 hours). The data were collected at 42 points per shed, spaced 0.40 × 0.75 m. The experimental design was completely randomized in a 2 × 2 factorial scheme, considering two periods and two sheds. Spatial dependence was evaluated using geostatistics and interpolation maps by kriging. The facilities presented strong or moderate spatial dependence for all observed variables and periods. The small edges and lack of management of curtains resulted in the masonry shed having higher illuminance values during both periods. Although it did not present ideal values for a comfortable environment, the wood shed was more thermally efficient.
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spelling Spatial variability of enthalpy and illuminance in free-range broiler shedsenvironmentavianthermal comfortrural buildingsgeostatisticsABSTRACT Free-range broiler producers are concerned with the thermal environment and lighting of their facilities and seek to improve these factors for the increased welfare of their broilers. The objective of this study was to evaluate the spatialization of illuminance and enthalpy in two free-range broiler sheds, one of masonry with a clay tile roof and the other built of wood with a straw roof. The data on air temperature, relative air humidity, and illuminance were recorded between September and October 2018 for five non-consecutive weeks in two periods during the day: morning (9 hours) and afternoon (15 hours). The data were collected at 42 points per shed, spaced 0.40 × 0.75 m. The experimental design was completely randomized in a 2 × 2 factorial scheme, considering two periods and two sheds. Spatial dependence was evaluated using geostatistics and interpolation maps by kriging. The facilities presented strong or moderate spatial dependence for all observed variables and periods. The small edges and lack of management of curtains resulted in the masonry shed having higher illuminance values during both periods. Although it did not present ideal values for a comfortable environment, the wood shed was more thermally efficient.Departamento de Engenharia Agrícola - UFCG2021-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662021000500340Revista Brasileira de Engenharia Agrícola e Ambiental v.25 n.5 2021reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCG10.1590/1807-1929/agriambi.v25n5p340-344info:eu-repo/semantics/openAccessFaustino,Amélia C.Turco,Silvia H. N.Silva Junior,René G. C.Miranda,Isadora B.Anjos,Italo E.Lourençoni,Dianeng2021-03-23T00:00:00Zoai:scielo:S1415-43662021000500340Revistahttp://www.scielo.br/rbeaaPUBhttps://old.scielo.br/oai/scielo-oai.php||agriambi@agriambi.com.br1807-19291415-4366opendoar:2021-03-23T00:00Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)false
dc.title.none.fl_str_mv Spatial variability of enthalpy and illuminance in free-range broiler sheds
title Spatial variability of enthalpy and illuminance in free-range broiler sheds
spellingShingle Spatial variability of enthalpy and illuminance in free-range broiler sheds
Faustino,Amélia C.
environment
avian
thermal comfort
rural buildings
geostatistics
title_short Spatial variability of enthalpy and illuminance in free-range broiler sheds
title_full Spatial variability of enthalpy and illuminance in free-range broiler sheds
title_fullStr Spatial variability of enthalpy and illuminance in free-range broiler sheds
title_full_unstemmed Spatial variability of enthalpy and illuminance in free-range broiler sheds
title_sort Spatial variability of enthalpy and illuminance in free-range broiler sheds
author Faustino,Amélia C.
author_facet Faustino,Amélia C.
Turco,Silvia H. N.
Silva Junior,René G. C.
Miranda,Isadora B.
Anjos,Italo E.
Lourençoni,Dian
author_role author
author2 Turco,Silvia H. N.
Silva Junior,René G. C.
Miranda,Isadora B.
Anjos,Italo E.
Lourençoni,Dian
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Faustino,Amélia C.
Turco,Silvia H. N.
Silva Junior,René G. C.
Miranda,Isadora B.
Anjos,Italo E.
Lourençoni,Dian
dc.subject.por.fl_str_mv environment
avian
thermal comfort
rural buildings
geostatistics
topic environment
avian
thermal comfort
rural buildings
geostatistics
description ABSTRACT Free-range broiler producers are concerned with the thermal environment and lighting of their facilities and seek to improve these factors for the increased welfare of their broilers. The objective of this study was to evaluate the spatialization of illuminance and enthalpy in two free-range broiler sheds, one of masonry with a clay tile roof and the other built of wood with a straw roof. The data on air temperature, relative air humidity, and illuminance were recorded between September and October 2018 for five non-consecutive weeks in two periods during the day: morning (9 hours) and afternoon (15 hours). The data were collected at 42 points per shed, spaced 0.40 × 0.75 m. The experimental design was completely randomized in a 2 × 2 factorial scheme, considering two periods and two sheds. Spatial dependence was evaluated using geostatistics and interpolation maps by kriging. The facilities presented strong or moderate spatial dependence for all observed variables and periods. The small edges and lack of management of curtains resulted in the masonry shed having higher illuminance values during both periods. Although it did not present ideal values for a comfortable environment, the wood shed was more thermally efficient.
publishDate 2021
dc.date.none.fl_str_mv 2021-05-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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format article
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662021000500340
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1807-1929/agriambi.v25n5p340-344
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eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Departamento de Engenharia Agrícola - UFCG
publisher.none.fl_str_mv Departamento de Engenharia Agrícola - UFCG
dc.source.none.fl_str_mv Revista Brasileira de Engenharia Agrícola e Ambiental v.25 n.5 2021
reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
instname:Universidade Federal de Campina Grande (UFCG)
instacron:UFCG
instname_str Universidade Federal de Campina Grande (UFCG)
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