Productive features of broiler chickens in hot weather: effects of strain and sex

Detalhes bibliográficos
Autor(a) principal: Nascimento, Daphinne Cardoso Nagib do
Data de Publicação: 2018
Outros Autores: Dourado, Leilane Rocha Barros, Siqueira, Jefferson Costa de, Lima, Stélio Bezerra Pinheiro de, Silva, Melina da Conceição Macêdo da, Silva, Gabriela Gome da, Sakomura, Nilva Kazue, Ferreira, Guilherme José Bolzani de Campos, Biagiotti, Daniel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/28919
Resumo: The objective of the present study was to evaluate the performance of broiler strains (Cobb 500, Ross 308, and Hubbard Flex) in hot weather. Environmental temperatures above thermal comfort trigger responses of the animals to maintain homeothermia, which negatively affects productive performance. A total of 2,160 chicks of both sexes, were distributed in an experimental design that was completely randomized in a factorial arrangement of 3 × 2 (strains and sexes) with six replicates of 60 birds each. Feed intake (FI), live weight (LW), weight gain (WG), and feed conversion (FC) were analyzed at periods of 1–7, 1–21, 1–28, 1–42, and 1–49 days old. At 42 and 49 days old, the carcass weight (CW), carcass yield (CY), breast yield (BY), thigh yield (TY), and drumstick yield (DY) were analyzed. The strains differed in LW and WG in most periods, especially for Cobb broilers in the pre-start period (1–7 days) and Hubbard broilers in the last two periods (1–42 and 1–49 days). Except for the pre-initial stage, which there was no influence of the strains on FC, the Hubbard broilers showed the best FC, at 1–49 d, similarly to Cobb broilers. Regardless of strain, the males showed superior performance to that of females. At 42 d, the Cobb broilers showed a superior BY to that of the other strains, presenting better TY than did the Ross and Hubbard strains. At 49 d, the Cobb and Ross strains showed the best BY, with the Hubbard strain having the greatest DY. Males showed higher values in cut yields, except in the BY in which females showed better results.
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spelling Productive features of broiler chickens in hot weather: effects of strain and sexCaracterísticas produtivas de frangos de corte: efeito da linhagem e sexoCarcass yieldGeneticsPoultry industry.AviculturaLinhagensRendimento de carcaça.The objective of the present study was to evaluate the performance of broiler strains (Cobb 500, Ross 308, and Hubbard Flex) in hot weather. Environmental temperatures above thermal comfort trigger responses of the animals to maintain homeothermia, which negatively affects productive performance. A total of 2,160 chicks of both sexes, were distributed in an experimental design that was completely randomized in a factorial arrangement of 3 × 2 (strains and sexes) with six replicates of 60 birds each. Feed intake (FI), live weight (LW), weight gain (WG), and feed conversion (FC) were analyzed at periods of 1–7, 1–21, 1–28, 1–42, and 1–49 days old. At 42 and 49 days old, the carcass weight (CW), carcass yield (CY), breast yield (BY), thigh yield (TY), and drumstick yield (DY) were analyzed. The strains differed in LW and WG in most periods, especially for Cobb broilers in the pre-start period (1–7 days) and Hubbard broilers in the last two periods (1–42 and 1–49 days). Except for the pre-initial stage, which there was no influence of the strains on FC, the Hubbard broilers showed the best FC, at 1–49 d, similarly to Cobb broilers. Regardless of strain, the males showed superior performance to that of females. At 42 d, the Cobb broilers showed a superior BY to that of the other strains, presenting better TY than did the Ross and Hubbard strains. At 49 d, the Cobb and Ross strains showed the best BY, with the Hubbard strain having the greatest DY. Males showed higher values in cut yields, except in the BY in which females showed better results.Objetivou-se avaliar o desempenho das linhagens de frangos de corte (Cobb 500, Ross 308 e Hubbard Flex) criadas em clima quente. Temperatura ambientais acima do conforto térmico desencadeiam respostas dos animais para a manutenção da homeotermia em detrimento do desempenho produtivo. Foram utilizados 2160 aves, de ambos os sexos, distribuídas em delineamento experimental inteiramente casualizado em esquema fatorial 3 x 2 (linhagem e sexo) com seis repetições de 60 aves cada. Foi avaliado o consumo de ração (CR), ganho de peso (GP), conversão alimentar (CA) e peso vivo (PV), nos períodos de 1 a 7, 1 a 21, 1 a 28, 1 a 42 e 1 a 49 dias. Aos 42 e 49 dias foram avaliados o peso de carcaça (CAR), rendimento de carcaça (RC), rendimento de peito (RP), rendimento de coxa (RCX) e rendimento de sobrecoxa (RSC). As linhagens diferiram em PV e GP na maioria dos períodos, com destaque para as aves da linhagem Cobb no período pré-inicial (1 a 7 dias) e as aves Hubbard nos dois últimos períodos. Com exceção à fase pré-inicial em que não houve influência das linhagens sobre a CA, as aves Hubbard apresentaram a melhor CA, sendo esta no período de 1 a 49 dias semelhante às aves Cobb. Independente da linhagem, os machos apresentaram desempenho superior em relação às fêmeas. Aos 42 dias as aves Cobb apresentaram RP superior às demais linhagens, sendo o melhor RCX apresentado pelas aves Ross e Hubbard. Aos 49 dias as linhagens Cobb e Ross apresentaram o melhor RP, sendo o maior RSC exibido pela linhagem Hubbard. Os machos tiveram valores superiores nos rendimentos de corte, com exceção no RP em que as fêmeas demonstraram melhores resultados.UEL2018-03-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2891910.5433/1679-0359.2018v39n2p731Semina: Ciências Agrárias; Vol. 39 No. 2 (2018); 731-746Semina: Ciências Agrárias; v. 39 n. 2 (2018); 731-7461679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/28919/23238Copyright (c) 2018 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessNascimento, Daphinne Cardoso Nagib doDourado, Leilane Rocha BarrosSiqueira, Jefferson Costa deLima, Stélio Bezerra Pinheiro deSilva, Melina da Conceição Macêdo daSilva, Gabriela Gome daSakomura, Nilva KazueFerreira, Guilherme José Bolzani de CamposBiagiotti, Daniel2022-10-20T21:53:29Zoai:ojs.pkp.sfu.ca:article/28919Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-20T21:53:29Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Productive features of broiler chickens in hot weather: effects of strain and sex
Características produtivas de frangos de corte: efeito da linhagem e sexo
title Productive features of broiler chickens in hot weather: effects of strain and sex
spellingShingle Productive features of broiler chickens in hot weather: effects of strain and sex
Nascimento, Daphinne Cardoso Nagib do
Carcass yield
Genetics
Poultry industry.
Avicultura
Linhagens
Rendimento de carcaça.
title_short Productive features of broiler chickens in hot weather: effects of strain and sex
title_full Productive features of broiler chickens in hot weather: effects of strain and sex
title_fullStr Productive features of broiler chickens in hot weather: effects of strain and sex
title_full_unstemmed Productive features of broiler chickens in hot weather: effects of strain and sex
title_sort Productive features of broiler chickens in hot weather: effects of strain and sex
author Nascimento, Daphinne Cardoso Nagib do
author_facet Nascimento, Daphinne Cardoso Nagib do
Dourado, Leilane Rocha Barros
Siqueira, Jefferson Costa de
Lima, Stélio Bezerra Pinheiro de
Silva, Melina da Conceição Macêdo da
Silva, Gabriela Gome da
Sakomura, Nilva Kazue
Ferreira, Guilherme José Bolzani de Campos
Biagiotti, Daniel
author_role author
author2 Dourado, Leilane Rocha Barros
Siqueira, Jefferson Costa de
Lima, Stélio Bezerra Pinheiro de
Silva, Melina da Conceição Macêdo da
Silva, Gabriela Gome da
Sakomura, Nilva Kazue
Ferreira, Guilherme José Bolzani de Campos
Biagiotti, Daniel
author2_role author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Nascimento, Daphinne Cardoso Nagib do
Dourado, Leilane Rocha Barros
Siqueira, Jefferson Costa de
Lima, Stélio Bezerra Pinheiro de
Silva, Melina da Conceição Macêdo da
Silva, Gabriela Gome da
Sakomura, Nilva Kazue
Ferreira, Guilherme José Bolzani de Campos
Biagiotti, Daniel
dc.subject.por.fl_str_mv Carcass yield
Genetics
Poultry industry.
Avicultura
Linhagens
Rendimento de carcaça.
topic Carcass yield
Genetics
Poultry industry.
Avicultura
Linhagens
Rendimento de carcaça.
description The objective of the present study was to evaluate the performance of broiler strains (Cobb 500, Ross 308, and Hubbard Flex) in hot weather. Environmental temperatures above thermal comfort trigger responses of the animals to maintain homeothermia, which negatively affects productive performance. A total of 2,160 chicks of both sexes, were distributed in an experimental design that was completely randomized in a factorial arrangement of 3 × 2 (strains and sexes) with six replicates of 60 birds each. Feed intake (FI), live weight (LW), weight gain (WG), and feed conversion (FC) were analyzed at periods of 1–7, 1–21, 1–28, 1–42, and 1–49 days old. At 42 and 49 days old, the carcass weight (CW), carcass yield (CY), breast yield (BY), thigh yield (TY), and drumstick yield (DY) were analyzed. The strains differed in LW and WG in most periods, especially for Cobb broilers in the pre-start period (1–7 days) and Hubbard broilers in the last two periods (1–42 and 1–49 days). Except for the pre-initial stage, which there was no influence of the strains on FC, the Hubbard broilers showed the best FC, at 1–49 d, similarly to Cobb broilers. Regardless of strain, the males showed superior performance to that of females. At 42 d, the Cobb broilers showed a superior BY to that of the other strains, presenting better TY than did the Ross and Hubbard strains. At 49 d, the Cobb and Ross strains showed the best BY, with the Hubbard strain having the greatest DY. Males showed higher values in cut yields, except in the BY in which females showed better results.
publishDate 2018
dc.date.none.fl_str_mv 2018-03-15
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/28919
10.5433/1679-0359.2018v39n2p731
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/28919
identifier_str_mv 10.5433/1679-0359.2018v39n2p731
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/28919/23238
dc.rights.driver.fl_str_mv Copyright (c) 2018 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 39 No. 2 (2018); 731-746
Semina: Ciências Agrárias; v. 39 n. 2 (2018); 731-746
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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