Performance of chicks subjected to thermal challenge

Detalhes bibliográficos
Autor(a) principal: Ferraz, Patrícia Ferreira Ponciano
Data de Publicação: 2017
Outros Autores: Yanagi Junior, Tadayuki, Lima, Renato Ribeiro de, Ferraz, Gabriel Araújo e Silva, Xin, Hongwei
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/30776
Resumo: The objective of this work was to evaluate the effect of thermal challenge at different intensities and durations on the production responses of 3 to 21-day-old broiler chickens. Two hundred and ten Cobb chicks were subjected to dry-bulb temperatures (tdb) of 27, 30, 33, or 36°C for the duration of 0, 1, 2, 3, or 4 days from the second day of life onwards. The experiment was carried out in four identical environmentally-controlled wind tunnels. Data on body mass (BM), feed intake (FI), and water intake (WI), all in grams, were monitored daily; and body weight gain (BWG), in grams, and feed conversion (FC) were also calculated. The effect of duration was not statistically significant. Empirical models were adjusted to relate BM, FI, and WI with tdb and bird age. The performance of chicks at 21 days of age was analyzed using the BM, FI, WI, BWG, and FC values. Overall, the development of chicks at 33 and 36°C was better than that of those subjected to the lower tdb of 30 and 27°C. The exposure of chicks to cold thermal challenge in early life can have a carry-over negative effect on their production performance up to 21 days of age.
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spelling Performance of chicks subjected to thermal challengeDesempenho de pintinhos submetidos a estresse térmicoAir temperatureBroilerCarry-over effectProduction responsesThermal stressTemperatura do arFrangoEfeito residualRespostas produtivasEstresse térmicoThe objective of this work was to evaluate the effect of thermal challenge at different intensities and durations on the production responses of 3 to 21-day-old broiler chickens. Two hundred and ten Cobb chicks were subjected to dry-bulb temperatures (tdb) of 27, 30, 33, or 36°C for the duration of 0, 1, 2, 3, or 4 days from the second day of life onwards. The experiment was carried out in four identical environmentally-controlled wind tunnels. Data on body mass (BM), feed intake (FI), and water intake (WI), all in grams, were monitored daily; and body weight gain (BWG), in grams, and feed conversion (FC) were also calculated. The effect of duration was not statistically significant. Empirical models were adjusted to relate BM, FI, and WI with tdb and bird age. The performance of chicks at 21 days of age was analyzed using the BM, FI, WI, BWG, and FC values. Overall, the development of chicks at 33 and 36°C was better than that of those subjected to the lower tdb of 30 and 27°C. The exposure of chicks to cold thermal challenge in early life can have a carry-over negative effect on their production performance up to 21 days of age.O objetivo deste trabalho foi avaliar o efeito do estresse térmico em diferentes intensidades e durações sobre as respostas produtivas de frangos de corte de 3 a 21 dias de idade. Duzentos e dez pintinhos Cobb foram submetidos às temperaturas do bulbo seco (tbs) de 27, 30, 33 ou 36°C durante 0, 1, 2, 3 ou 4 dias, a partir do segundo dia de vida. O experimento foi conduzido em quatro túneis de vento climatizados idênticos. Dados de massa corporal (MC), consumo de ração (CR) e consumo de água (CAg), todos em gramas, foram coletados diariamente; e ganho de massa corporal (GMC), em gramas, e conversão alimentar (CA) também foram calculados. O efeito da duração não foi estatisticamente significativo. Modelos empíricos foram ajustados para estimar MC, CR e CAg em função da tbs e da idade das aves. O desempenho dos pintinhos aos 21 dias de idade foi analisado a partir dos valores de MC, CR, CAg, GMC e CA. Em geral, o desenvolvimento de pintinhos a 33 e 36°C foi melhor que o dos submetidos às menores tbs, de 30 e 27°C. A exposição de pintos de corte ao frio nos primeiros dias de vida pode causar efeito residual em suas respostas produtivas até 21 dias de idade.Embrapa2018-09-27T12:51:36Z2018-09-27T12:51:36Z2017-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfFERRAZ, P. F. P. et al. Performance of chicks subjected to thermal challenge. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n. 2, Feb. 2017.http://repositorio.ufla.br/jspui/handle/1/30776Pesquisa Agropecuária Brasileirareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessFerraz, Patrícia Ferreira PoncianoYanagi Junior, TadayukiLima, Renato Ribeiro deFerraz, Gabriel Araújo e SilvaXin, Hongweieng2023-05-19T19:05:14Zoai:localhost:1/30776Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-19T19:05:14Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Performance of chicks subjected to thermal challenge
Desempenho de pintinhos submetidos a estresse térmico
title Performance of chicks subjected to thermal challenge
spellingShingle Performance of chicks subjected to thermal challenge
Ferraz, Patrícia Ferreira Ponciano
Air temperature
Broiler
Carry-over effect
Production responses
Thermal stress
Temperatura do ar
Frango
Efeito residual
Respostas produtivas
Estresse térmico
title_short Performance of chicks subjected to thermal challenge
title_full Performance of chicks subjected to thermal challenge
title_fullStr Performance of chicks subjected to thermal challenge
title_full_unstemmed Performance of chicks subjected to thermal challenge
title_sort Performance of chicks subjected to thermal challenge
author Ferraz, Patrícia Ferreira Ponciano
author_facet Ferraz, Patrícia Ferreira Ponciano
Yanagi Junior, Tadayuki
Lima, Renato Ribeiro de
Ferraz, Gabriel Araújo e Silva
Xin, Hongwei
author_role author
author2 Yanagi Junior, Tadayuki
Lima, Renato Ribeiro de
Ferraz, Gabriel Araújo e Silva
Xin, Hongwei
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Ferraz, Patrícia Ferreira Ponciano
Yanagi Junior, Tadayuki
Lima, Renato Ribeiro de
Ferraz, Gabriel Araújo e Silva
Xin, Hongwei
dc.subject.por.fl_str_mv Air temperature
Broiler
Carry-over effect
Production responses
Thermal stress
Temperatura do ar
Frango
Efeito residual
Respostas produtivas
Estresse térmico
topic Air temperature
Broiler
Carry-over effect
Production responses
Thermal stress
Temperatura do ar
Frango
Efeito residual
Respostas produtivas
Estresse térmico
description The objective of this work was to evaluate the effect of thermal challenge at different intensities and durations on the production responses of 3 to 21-day-old broiler chickens. Two hundred and ten Cobb chicks were subjected to dry-bulb temperatures (tdb) of 27, 30, 33, or 36°C for the duration of 0, 1, 2, 3, or 4 days from the second day of life onwards. The experiment was carried out in four identical environmentally-controlled wind tunnels. Data on body mass (BM), feed intake (FI), and water intake (WI), all in grams, were monitored daily; and body weight gain (BWG), in grams, and feed conversion (FC) were also calculated. The effect of duration was not statistically significant. Empirical models were adjusted to relate BM, FI, and WI with tdb and bird age. The performance of chicks at 21 days of age was analyzed using the BM, FI, WI, BWG, and FC values. Overall, the development of chicks at 33 and 36°C was better than that of those subjected to the lower tdb of 30 and 27°C. The exposure of chicks to cold thermal challenge in early life can have a carry-over negative effect on their production performance up to 21 days of age.
publishDate 2017
dc.date.none.fl_str_mv 2017-02
2018-09-27T12:51:36Z
2018-09-27T12:51:36Z
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 FERRAZ, P. F. P. et al. Performance of chicks subjected to thermal challenge. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n. 2, Feb. 2017.
http://repositorio.ufla.br/jspui/handle/1/30776
identifier_str_mv FERRAZ, P. F. P. et al. Performance of chicks subjected to thermal challenge. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n. 2, Feb. 2017.
url http://repositorio.ufla.br/jspui/handle/1/30776
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 Embrapa
publisher.none.fl_str_mv Embrapa
dc.source.none.fl_str_mv Pesquisa Agropecuária Brasileira
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_ 1807835138173698048

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