Metabolic heat production and evaporation of poultry
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3382/ps/pex094 http://hdl.handle.net/11449/170073 |
Resumo: | Accurate measurements of gas exchange between an animal and its environment is critical in determining metabolic heat production and respiratory functions of broilers. Information on non-invasive methods to measure gas exchange of broiler chicks and chickens under uncontrolled environmental conditions is lacking in the literature. The aims of this study were: (1) to develop an indirect calorimetric system including a hood that allows gas exchange for chickens, (2) to measure gas exchange and respiratory functions (respiration rate, ventilation rate, and tidal volume) of broiler chickens weighing greater than 250 g, and (3) to calculate heat production and respiratory evaporation of the birds based on measured gas and vapor exchanges. We conducted two trials. The first trial involved 6 broiler chicks evaluated for 6 days in 6 different schedules (6 × 6 Latin square). The chicks were kept inside a heat exchanger with a continuous air flow of 150 mL min-1. The second trial involved 12 birds evaluated for 12 days in 12 different schedules (12 × 12 Latin square). Metabolic heat production and evaporation were influenced by live weight of chicks, varying between evaluation days (P < 0.05). The respiratory functions (tidal volume, ventilation rate, and respiratory rate) varied between days, and were strongly influenced by live weight of the broilers (P < 0.05). |
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Metabolic heat production and evaporation of poultryevaporative heat lossindirect calorimetrymetabolic-heat productionrespiratory functionsAccurate measurements of gas exchange between an animal and its environment is critical in determining metabolic heat production and respiratory functions of broilers. Information on non-invasive methods to measure gas exchange of broiler chicks and chickens under uncontrolled environmental conditions is lacking in the literature. The aims of this study were: (1) to develop an indirect calorimetric system including a hood that allows gas exchange for chickens, (2) to measure gas exchange and respiratory functions (respiration rate, ventilation rate, and tidal volume) of broiler chickens weighing greater than 250 g, and (3) to calculate heat production and respiratory evaporation of the birds based on measured gas and vapor exchanges. We conducted two trials. The first trial involved 6 broiler chicks evaluated for 6 days in 6 different schedules (6 × 6 Latin square). The chicks were kept inside a heat exchanger with a continuous air flow of 150 mL min-1. The second trial involved 12 birds evaluated for 12 days in 12 different schedules (12 × 12 Latin square). Metabolic heat production and evaporation were influenced by live weight of chicks, varying between evaluation days (P < 0.05). The respiratory functions (tidal volume, ventilation rate, and respiratory rate) varied between days, and were strongly influenced by live weight of the broilers (P < 0.05).Faculty of Agronomy and Veterinary Medicine (FAV) UnB - Universidade de Brasília Campus Universitário Darcy RibeiroAnimal Science Department UNESP - Universidade Estadual Paulista, Prof. Paulo Donato Castellane RouteBiological and Environmental Engineer Department Cornell University, 111 Wing DriveAnimal Science Department UNESP - Universidade Estadual Paulista, Prof. Paulo Donato Castellani RouteAnimal Science Department UNESP - Universidade Estadual Paulista, Prof. Paulo Donato Castellane RouteAnimal Science Department UNESP - Universidade Estadual Paulista, Prof. Paulo Donato Castellani RouteUniversidade de Brasília (UnB)Universidade Estadual Paulista (Unesp)Cornell UniversityNascimento, Sheila T.Maia, Alex S.C. [UNESP]Gebremedhin, Kifle G.Nascimento, Carolina C.N. [UNESP]2018-12-11T16:49:00Z2018-12-11T16:49:00Z2017-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2691-2698application/pdfhttp://dx.doi.org/10.3382/ps/pex094Poultry Science, v. 96, n. 8, p. 2691-2698, 2017.1525-31710032-5791http://hdl.handle.net/11449/17007310.3382/ps/pex0942-s2.0-850284136582-s2.0-85028413658.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPoultry Science1,112info:eu-repo/semantics/openAccess2023-10-29T06:06:14Zoai:repositorio.unesp.br:11449/170073Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-29T06:06:14Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Metabolic heat production and evaporation of poultry |
title |
Metabolic heat production and evaporation of poultry |
spellingShingle |
Metabolic heat production and evaporation of poultry Nascimento, Sheila T. evaporative heat loss indirect calorimetry metabolic-heat production respiratory functions |
title_short |
Metabolic heat production and evaporation of poultry |
title_full |
Metabolic heat production and evaporation of poultry |
title_fullStr |
Metabolic heat production and evaporation of poultry |
title_full_unstemmed |
Metabolic heat production and evaporation of poultry |
title_sort |
Metabolic heat production and evaporation of poultry |
author |
Nascimento, Sheila T. |
author_facet |
Nascimento, Sheila T. Maia, Alex S.C. [UNESP] Gebremedhin, Kifle G. Nascimento, Carolina C.N. [UNESP] |
author_role |
author |
author2 |
Maia, Alex S.C. [UNESP] Gebremedhin, Kifle G. Nascimento, Carolina C.N. [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade de Brasília (UnB) Universidade Estadual Paulista (Unesp) Cornell University |
dc.contributor.author.fl_str_mv |
Nascimento, Sheila T. Maia, Alex S.C. [UNESP] Gebremedhin, Kifle G. Nascimento, Carolina C.N. [UNESP] |
dc.subject.por.fl_str_mv |
evaporative heat loss indirect calorimetry metabolic-heat production respiratory functions |
topic |
evaporative heat loss indirect calorimetry metabolic-heat production respiratory functions |
description |
Accurate measurements of gas exchange between an animal and its environment is critical in determining metabolic heat production and respiratory functions of broilers. Information on non-invasive methods to measure gas exchange of broiler chicks and chickens under uncontrolled environmental conditions is lacking in the literature. The aims of this study were: (1) to develop an indirect calorimetric system including a hood that allows gas exchange for chickens, (2) to measure gas exchange and respiratory functions (respiration rate, ventilation rate, and tidal volume) of broiler chickens weighing greater than 250 g, and (3) to calculate heat production and respiratory evaporation of the birds based on measured gas and vapor exchanges. We conducted two trials. The first trial involved 6 broiler chicks evaluated for 6 days in 6 different schedules (6 × 6 Latin square). The chicks were kept inside a heat exchanger with a continuous air flow of 150 mL min-1. The second trial involved 12 birds evaluated for 12 days in 12 different schedules (12 × 12 Latin square). Metabolic heat production and evaporation were influenced by live weight of chicks, varying between evaluation days (P < 0.05). The respiratory functions (tidal volume, ventilation rate, and respiratory rate) varied between days, and were strongly influenced by live weight of the broilers (P < 0.05). |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-08-01 2018-12-11T16:49:00Z 2018-12-11T16:49:00Z |
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 |
http://dx.doi.org/10.3382/ps/pex094 Poultry Science, v. 96, n. 8, p. 2691-2698, 2017. 1525-3171 0032-5791 http://hdl.handle.net/11449/170073 10.3382/ps/pex094 2-s2.0-85028413658 2-s2.0-85028413658.pdf |
url |
http://dx.doi.org/10.3382/ps/pex094 http://hdl.handle.net/11449/170073 |
identifier_str_mv |
Poultry Science, v. 96, n. 8, p. 2691-2698, 2017. 1525-3171 0032-5791 10.3382/ps/pex094 2-s2.0-85028413658 2-s2.0-85028413658.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Poultry Science 1,112 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
2691-2698 application/pdf |
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_ |
1799964741105352704 |