Use of protection screen in conventional aviaries (californian type) for laying hens
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/40900 |
Resumo: | The objective of this work was to evaluate the thermal environment inside conventional cages for laying hens, with and without the use of protective screens. This research was conducted in two conventional cages (open cage), where each cage had half of its area surrounded by high density polyethylene mesh (HDPE) with a diameter of 2.0 cm, and the other half was kept fully open. Hyline W-36 and Dekalb Brown laying hens were housed in these cages. The wind speed, dry bulb temperature (tdb), black globe temperature, humidity index (BGHI), and enthalpy (H) were analyzed. The results indicate that the use of the screen reduced the wind speed inside the cage by 0.22 m s-1 . The presence of the screen affected tdb, BGHI, and H in some of the evaluated periods evaluated, making these values higher than those of the treatment without screen. However, the obtained values are within or below the thermal comfort range for laying birds. Therefore, the use of HDPE screen in the cages altered their internal environment. However, it is not enough to hinder the thermal comfort of the housed animals. |
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Repositório Institucional da UFLA |
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Use of protection screen in conventional aviaries (californian type) for laying hensPoultry farmingAnimal welfareAmbienceThermal comfort indexThe objective of this work was to evaluate the thermal environment inside conventional cages for laying hens, with and without the use of protective screens. This research was conducted in two conventional cages (open cage), where each cage had half of its area surrounded by high density polyethylene mesh (HDPE) with a diameter of 2.0 cm, and the other half was kept fully open. Hyline W-36 and Dekalb Brown laying hens were housed in these cages. The wind speed, dry bulb temperature (tdb), black globe temperature, humidity index (BGHI), and enthalpy (H) were analyzed. The results indicate that the use of the screen reduced the wind speed inside the cage by 0.22 m s-1 . The presence of the screen affected tdb, BGHI, and H in some of the evaluated periods evaluated, making these values higher than those of the treatment without screen. However, the obtained values are within or below the thermal comfort range for laying birds. Therefore, the use of HDPE screen in the cages altered their internal environment. However, it is not enough to hinder the thermal comfort of the housed animals.Associação Brasileira de Engenharia Agrícola2020-05-14T14:54:02Z2020-05-14T14:54:02Z2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfLOURENÇONI, D. et al. Use of protection screen in conventional aviaries (californian type) for laying hens. Engenharia Agrícola, Jaboticabal, v. 39, n. 1, p. 48-54, Jan./Feb. 2019.http://repositorio.ufla.br/jspui/handle/1/40900Engenharia Agrícolareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessLourençoni, DianYanagi Junior, TadayukiOliveira, Daniela D. deLima, Renato R. dePena, Mariela R. da S.eng2023-05-26T19:37:16Zoai:localhost:1/40900Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-26T19:37:16Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Use of protection screen in conventional aviaries (californian type) for laying hens |
title |
Use of protection screen in conventional aviaries (californian type) for laying hens |
spellingShingle |
Use of protection screen in conventional aviaries (californian type) for laying hens Lourençoni, Dian Poultry farming Animal welfare Ambience Thermal comfort index |
title_short |
Use of protection screen in conventional aviaries (californian type) for laying hens |
title_full |
Use of protection screen in conventional aviaries (californian type) for laying hens |
title_fullStr |
Use of protection screen in conventional aviaries (californian type) for laying hens |
title_full_unstemmed |
Use of protection screen in conventional aviaries (californian type) for laying hens |
title_sort |
Use of protection screen in conventional aviaries (californian type) for laying hens |
author |
Lourençoni, Dian |
author_facet |
Lourençoni, Dian Yanagi Junior, Tadayuki Oliveira, Daniela D. de Lima, Renato R. de Pena, Mariela R. da S. |
author_role |
author |
author2 |
Yanagi Junior, Tadayuki Oliveira, Daniela D. de Lima, Renato R. de Pena, Mariela R. da S. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Lourençoni, Dian Yanagi Junior, Tadayuki Oliveira, Daniela D. de Lima, Renato R. de Pena, Mariela R. da S. |
dc.subject.por.fl_str_mv |
Poultry farming Animal welfare Ambience Thermal comfort index |
topic |
Poultry farming Animal welfare Ambience Thermal comfort index |
description |
The objective of this work was to evaluate the thermal environment inside conventional cages for laying hens, with and without the use of protective screens. This research was conducted in two conventional cages (open cage), where each cage had half of its area surrounded by high density polyethylene mesh (HDPE) with a diameter of 2.0 cm, and the other half was kept fully open. Hyline W-36 and Dekalb Brown laying hens were housed in these cages. The wind speed, dry bulb temperature (tdb), black globe temperature, humidity index (BGHI), and enthalpy (H) were analyzed. The results indicate that the use of the screen reduced the wind speed inside the cage by 0.22 m s-1 . The presence of the screen affected tdb, BGHI, and H in some of the evaluated periods evaluated, making these values higher than those of the treatment without screen. However, the obtained values are within or below the thermal comfort range for laying birds. Therefore, the use of HDPE screen in the cages altered their internal environment. However, it is not enough to hinder the thermal comfort of the housed animals. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 2020-05-14T14:54:02Z 2020-05-14T14:54:02Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
LOURENÇONI, D. et al. Use of protection screen in conventional aviaries (californian type) for laying hens. Engenharia Agrícola, Jaboticabal, v. 39, n. 1, p. 48-54, Jan./Feb. 2019. http://repositorio.ufla.br/jspui/handle/1/40900 |
identifier_str_mv |
LOURENÇONI, D. et al. Use of protection screen in conventional aviaries (californian type) for laying hens. Engenharia Agrícola, Jaboticabal, v. 39, n. 1, p. 48-54, Jan./Feb. 2019. |
url |
http://repositorio.ufla.br/jspui/handle/1/40900 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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 reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1807835138853175296 |