Productive features of broiler chickens in hot weather: effects of strain and sex
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , , , , , , , |
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. |
id |
UEL-11_622832eb934b85a7df49de5966badcc7 |
---|---|
oai_identifier_str |
oai:ojs.pkp.sfu.ca:article/28919 |
network_acronym_str |
UEL-11 |
network_name_str |
Semina. Ciências Agrárias (Online) |
repository_id_str |
|
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 |
_version_ |
1799306077691445248 |