Efeito do Isolamento Térmico de Telhado Sobre o Desempenho de Frangos de Corte Alojados em Diferentes Densidades
Autor(a) principal: | |
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Data de Publicação: | 2000 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/224435 |
Resumo: | The work objective was to evaluate the effect of using a thermal insulating material installed as lining under the roof, on broiler performance, on environmental conditions of different broiler chickens stocking densities (10, 16 and 22 birds/m 2) and on litter characteristics. The experiment was carried out during the summer, using 3328 chicks of Hubbard strain, distributed in a completely randomized design, in a factorial scheme 3x2 (density and sex), with four replicates for each environment. For the environment comparison a conjunct analysis was used. During the experimental period, registered temperature data were collected in several points and times, and also relative humidity and radiant thermal load were registered. Nitrogen content, dry matter and temperature of litter were determined. Daily average temperatures and temperature range were lower and the relative humidity was higher in the insulated environment. The broiler performance was better in the insulated environment, where the broilers had higher feed intake, higher weight gain, better feed: gain ratio, lower mortality and higher production per area. Rectal temperature of birds reared on the non insulated environment was higher than the birds reared on the insulated environment. As the rearing densities increased, the mortality increased, however the production per area was higher. The litter production was not affected by insulation, but it decreased the nitrogen percentage. Increasing stocking densities lead to an increase of litter production, but it did not affect the nitrogen percentage. The use of thermal insulation allowed increasing the broilers stocking density. |
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Repositório Institucional da UNESP |
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spelling |
Efeito do Isolamento Térmico de Telhado Sobre o Desempenho de Frangos de Corte Alojados em Diferentes DensidadesEffect of Thermal Insulation under the Roof on Performance of Broiler Chickens Stocked in Different DensitiesBroilersDensitiesEnvironmentLitterThermal insulationThe work objective was to evaluate the effect of using a thermal insulating material installed as lining under the roof, on broiler performance, on environmental conditions of different broiler chickens stocking densities (10, 16 and 22 birds/m 2) and on litter characteristics. The experiment was carried out during the summer, using 3328 chicks of Hubbard strain, distributed in a completely randomized design, in a factorial scheme 3x2 (density and sex), with four replicates for each environment. For the environment comparison a conjunct analysis was used. During the experimental period, registered temperature data were collected in several points and times, and also relative humidity and radiant thermal load were registered. Nitrogen content, dry matter and temperature of litter were determined. Daily average temperatures and temperature range were lower and the relative humidity was higher in the insulated environment. The broiler performance was better in the insulated environment, where the broilers had higher feed intake, higher weight gain, better feed: gain ratio, lower mortality and higher production per area. Rectal temperature of birds reared on the non insulated environment was higher than the birds reared on the insulated environment. As the rearing densities increased, the mortality increased, however the production per area was higher. The litter production was not affected by insulation, but it decreased the nitrogen percentage. Increasing stocking densities lead to an increase of litter production, but it did not affect the nitrogen percentage. The use of thermal insulation allowed increasing the broilers stocking density.FCAV-UNESPDepartamento de Zootecnia FCAV-UNESPDepartamento de Engenharia Rural FCAV-UNESPFCAV-UNESPDepartamento de Zootecnia FCAV-UNESPDepartamento de Engenharia Rural FCAV-UNESPUniversidade Estadual Paulista (UNESP)De Oliveira, Jean Eduardo [UNESP]Sakomura, Nilva Kazue [UNESP]Figueiredo, Adriana Nogueira [UNESP]De Lucas Jr., Jorge [UNESP]Dos Santos, Tânia Mara Baptista [UNESP]2022-04-28T19:56:32Z2022-04-28T19:56:32Z2000-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1427-1434Revista Brasileira de Zootecnia, v. 29, n. 5, p. 1427-1434, 2000.0100-4859http://hdl.handle.net/11449/2244352-s2.0-0346986053Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Zootecniainfo:eu-repo/semantics/openAccess2022-04-28T19:56:32Zoai:repositorio.unesp.br:11449/224435Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T19:56:32Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Efeito do Isolamento Térmico de Telhado Sobre o Desempenho de Frangos de Corte Alojados em Diferentes Densidades Effect of Thermal Insulation under the Roof on Performance of Broiler Chickens Stocked in Different Densities |
title |
Efeito do Isolamento Térmico de Telhado Sobre o Desempenho de Frangos de Corte Alojados em Diferentes Densidades |
spellingShingle |
Efeito do Isolamento Térmico de Telhado Sobre o Desempenho de Frangos de Corte Alojados em Diferentes Densidades De Oliveira, Jean Eduardo [UNESP] Broilers Densities Environment Litter Thermal insulation |
title_short |
Efeito do Isolamento Térmico de Telhado Sobre o Desempenho de Frangos de Corte Alojados em Diferentes Densidades |
title_full |
Efeito do Isolamento Térmico de Telhado Sobre o Desempenho de Frangos de Corte Alojados em Diferentes Densidades |
title_fullStr |
Efeito do Isolamento Térmico de Telhado Sobre o Desempenho de Frangos de Corte Alojados em Diferentes Densidades |
title_full_unstemmed |
Efeito do Isolamento Térmico de Telhado Sobre o Desempenho de Frangos de Corte Alojados em Diferentes Densidades |
title_sort |
Efeito do Isolamento Térmico de Telhado Sobre o Desempenho de Frangos de Corte Alojados em Diferentes Densidades |
author |
De Oliveira, Jean Eduardo [UNESP] |
author_facet |
De Oliveira, Jean Eduardo [UNESP] Sakomura, Nilva Kazue [UNESP] Figueiredo, Adriana Nogueira [UNESP] De Lucas Jr., Jorge [UNESP] Dos Santos, Tânia Mara Baptista [UNESP] |
author_role |
author |
author2 |
Sakomura, Nilva Kazue [UNESP] Figueiredo, Adriana Nogueira [UNESP] De Lucas Jr., Jorge [UNESP] Dos Santos, Tânia Mara Baptista [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
De Oliveira, Jean Eduardo [UNESP] Sakomura, Nilva Kazue [UNESP] Figueiredo, Adriana Nogueira [UNESP] De Lucas Jr., Jorge [UNESP] Dos Santos, Tânia Mara Baptista [UNESP] |
dc.subject.por.fl_str_mv |
Broilers Densities Environment Litter Thermal insulation |
topic |
Broilers Densities Environment Litter Thermal insulation |
description |
The work objective was to evaluate the effect of using a thermal insulating material installed as lining under the roof, on broiler performance, on environmental conditions of different broiler chickens stocking densities (10, 16 and 22 birds/m 2) and on litter characteristics. The experiment was carried out during the summer, using 3328 chicks of Hubbard strain, distributed in a completely randomized design, in a factorial scheme 3x2 (density and sex), with four replicates for each environment. For the environment comparison a conjunct analysis was used. During the experimental period, registered temperature data were collected in several points and times, and also relative humidity and radiant thermal load were registered. Nitrogen content, dry matter and temperature of litter were determined. Daily average temperatures and temperature range were lower and the relative humidity was higher in the insulated environment. The broiler performance was better in the insulated environment, where the broilers had higher feed intake, higher weight gain, better feed: gain ratio, lower mortality and higher production per area. Rectal temperature of birds reared on the non insulated environment was higher than the birds reared on the insulated environment. As the rearing densities increased, the mortality increased, however the production per area was higher. The litter production was not affected by insulation, but it decreased the nitrogen percentage. Increasing stocking densities lead to an increase of litter production, but it did not affect the nitrogen percentage. The use of thermal insulation allowed increasing the broilers stocking density. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-09-01 2022-04-28T19:56:32Z 2022-04-28T19:56:32Z |
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 |
Revista Brasileira de Zootecnia, v. 29, n. 5, p. 1427-1434, 2000. 0100-4859 http://hdl.handle.net/11449/224435 2-s2.0-0346986053 |
identifier_str_mv |
Revista Brasileira de Zootecnia, v. 29, n. 5, p. 1427-1434, 2000. 0100-4859 2-s2.0-0346986053 |
url |
http://hdl.handle.net/11449/224435 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista Brasileira de Zootecnia |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1427-1434 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964787124207616 |