Growth and carcass characteristics of different crosses of broiler chickens reared under an alternative system

Detalhes bibliográficos
Autor(a) principal: Cruz, Fábio Loures
Data de Publicação: 2018
Outros Autores: Saraiva, Lorena Katheryne Vieira, Silva, Grace Ellen, Nogueira, Tatiane Mendonça, Silva, Ana Paula, Faria, Peter Bitencourt
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/34655
Resumo: This study aimed to assess the effect of different breeds and crosses of broiler chickens and sex on growth, carcass characteristics, and tissue composition. The experimental design was a completely randomized design in a 6 × 2 factorial scheme, with six genotypes (New Hampshire – NHS, Jersey Black Giant – JBG, Rodhe Island Red – RIR, Indigenous Giant – IG, and the hybrids IG × NHS and IG × JBG) and two sexes (male and female). Each treatment was composed of five replications with three broiler chickens, totaling 180 broiler chickens. Zootechnical performance and growth were assessed through the Gompertz equation parameters. After slaughtering at 105 days, the characteristics of carcass and main cuts were determined by means of weight, yield, and proportion of tissue constituents (meat, bone, and skin). Regarding the Gompertz equation parameters, the genotype NHS presented a higher growth potential. Males presented higher live weight and carcass weights, except for IG. No difference was observed between genotypes and sexes (P > 0.05) for carcass yield. The genotype JBG presented the highest average for breast yield (24.4%). Males presented the highest average for leg yield (30.5%). The genotype IG presented the highest value of breast meat yield (71.2%), being similar to the genotypes from the crosses IG × NHS, and IG × JBG (68.9 and 68.3%, respectively). For meat to breastbone ratio, the genotype IG presented the highest value (3.4) and, considering the sex, females presented a higher average (3.2) for this characteristic. Regarding the proportion of leg meat, an effect was observed for genotype and sex (P < 0.05) with the highest values observed for the hybrid IG × JBG and females (66.3 and 66.0%, respectively). For meat to leg bone ratio, the genotypes NHS, JBG, RIR, and IG × NHS presented the highest values (2.6, 2.7, 2.6, and 2.6, respectively), with females presenting the highest value (P < 0.05) (2.7). The genotypes IG, IG × NHS and IG × JBG presented the best growth and carcass characteristics, being recommended to be reared under an alternative system. Females presented the highest breast yield and, proportionally, the highest amount of leg meat, which are important attributes in a chicken meat production system.
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spelling Growth and carcass characteristics of different crosses of broiler chickens reared under an alternative systemCaracterísticas de crescimento e carcaça de diferentes cruzamentos de frangos criados em sistema alternativoBreedsCarcass yieldGenderTissue constituentsConstituintes teciduaisGalo Índio GiganteRaçasRendimento de carcaçaSexoThis study aimed to assess the effect of different breeds and crosses of broiler chickens and sex on growth, carcass characteristics, and tissue composition. The experimental design was a completely randomized design in a 6 × 2 factorial scheme, with six genotypes (New Hampshire – NHS, Jersey Black Giant – JBG, Rodhe Island Red – RIR, Indigenous Giant – IG, and the hybrids IG × NHS and IG × JBG) and two sexes (male and female). Each treatment was composed of five replications with three broiler chickens, totaling 180 broiler chickens. Zootechnical performance and growth were assessed through the Gompertz equation parameters. After slaughtering at 105 days, the characteristics of carcass and main cuts were determined by means of weight, yield, and proportion of tissue constituents (meat, bone, and skin). Regarding the Gompertz equation parameters, the genotype NHS presented a higher growth potential. Males presented higher live weight and carcass weights, except for IG. No difference was observed between genotypes and sexes (P > 0.05) for carcass yield. The genotype JBG presented the highest average for breast yield (24.4%). Males presented the highest average for leg yield (30.5%). The genotype IG presented the highest value of breast meat yield (71.2%), being similar to the genotypes from the crosses IG × NHS, and IG × JBG (68.9 and 68.3%, respectively). For meat to breastbone ratio, the genotype IG presented the highest value (3.4) and, considering the sex, females presented a higher average (3.2) for this characteristic. Regarding the proportion of leg meat, an effect was observed for genotype and sex (P < 0.05) with the highest values observed for the hybrid IG × JBG and females (66.3 and 66.0%, respectively). For meat to leg bone ratio, the genotypes NHS, JBG, RIR, and IG × NHS presented the highest values (2.6, 2.7, 2.6, and 2.6, respectively), with females presenting the highest value (P < 0.05) (2.7). The genotypes IG, IG × NHS and IG × JBG presented the best growth and carcass characteristics, being recommended to be reared under an alternative system. Females presented the highest breast yield and, proportionally, the highest amount of leg meat, which are important attributes in a chicken meat production system.Objetivou-se avaliar o efeito de diferentes raças e cruzamentos de frangos e do sexo sobre as características de crescimento, carcaça e composição dos tecidos. O delineamento foi inteiramente casualizado disposto em esquema fatorial (6x2), sendo seis genótipos (New Hampshire – NHS; Gigante Negra de Jersey – GNJ; Rodhe Island Red – RIR; Índio Gigante – IG; cruzamento entre as raçasIG e NHS – IG x NHS e entre IG e GNJ – IG x GNJ) e dois sexos (macho e fêmea), com cinco repetições e três aves por repetição, totalizando 180 aves. Foi avaliado o desempenho zootécnico e o crescimento, através de parâmetros da equação de gompertz. Após o abate, que ocorreu aos 105 dias, foram determinadas as características de carcaça e dos principais cortes através do peso, do rendimento e da proporção dos constituentes teciduais (carne, osso e pele). Com relação aos parâmetros da equação de gompertz, as aves da raça NHS apresentaram maior potencial de crescimento. Os machos apresentaram médias superiores de peso vivo e de carcaça, exceto para o genótipo IG. Não houve diferença entre genótipos e sexos (P > 0,05) para o rendimento de carcaça. O genótipo GNJ apresentou a maior média de rendimento de peito (24,4 %). Para o rendimento de perna, os machos apresentaram a maior média (30,5 %). A raça IG apresentou maior valor de rendimento de carne do peito (71,2 %), sendo semelhante aos genótipos oriundos dos cruzamentos, IG x NHS e IG x GNJ (68,9 e 68,3 %, respectivamente). Para a relação carne/osso do peito, as aves da raça IG apresentaram o maior valor (3,4) e, com relação ao sexo, as fêmeas apresentaram média superior (3,2). Com relação à proporção de carne da perna, houve efeito do genótipo e do sexo (P < 0,05), sendo que o genótipo IG x GNJ e as fêmeas apresentaram maiores valores (66,3 e 66,0 %, respectivamente). Para a relação carne/osso da perna, os genótipos NHS, GNJ, RIR e IG x NHS apresentaram os maiores valores (2,6, 2,7, 2,6 e 2,6, respectivamente). As fêmeas apresentaram maior valor (P < 0,05) para esta variável (2,7). Os genótipos IG, IG x NHS e IG x GNJ apresentaram as melhores características de crescimento e de carcaça sendo preconizadas para a produção em sistema alternativo. As fêmeas apresentaram maior rendimento de peito e proporcionalmente maior quantidade de carne na perna, que são atributos importantes em um sistema de produção de carne de frango.Universidade Estadual de Londrina2019-06-06T12:05:57Z2019-06-06T12:05:57Z2018info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfCRUZ, F. L. et al. Growth and carcass characteristics of different crosses of broiler chickens reared under an alternative system. Semina: Ciências Agrárias, Londrina, v. 39, n. 1, p. 317-328, Jan./Feb. 2018.http://repositorio.ufla.br/jspui/handle/1/34655Semina: Ciências Agráriasreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessCruz, Fábio LouresSaraiva, Lorena Katheryne VieiraSilva, Grace EllenNogueira, Tatiane MendonçaSilva, Ana PaulaFaria, Peter Bitencourteng2019-06-06T12:40:07Zoai:localhost:1/34655Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-06-06T12:40:07Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Growth and carcass characteristics of different crosses of broiler chickens reared under an alternative system
Características de crescimento e carcaça de diferentes cruzamentos de frangos criados em sistema alternativo
title Growth and carcass characteristics of different crosses of broiler chickens reared under an alternative system
spellingShingle Growth and carcass characteristics of different crosses of broiler chickens reared under an alternative system
Cruz, Fábio Loures
Breeds
Carcass yield
Gender
Tissue constituents
Constituintes teciduais
Galo Índio Gigante
Raças
Rendimento de carcaça
Sexo
title_short Growth and carcass characteristics of different crosses of broiler chickens reared under an alternative system
title_full Growth and carcass characteristics of different crosses of broiler chickens reared under an alternative system
title_fullStr Growth and carcass characteristics of different crosses of broiler chickens reared under an alternative system
title_full_unstemmed Growth and carcass characteristics of different crosses of broiler chickens reared under an alternative system
title_sort Growth and carcass characteristics of different crosses of broiler chickens reared under an alternative system
author Cruz, Fábio Loures
author_facet Cruz, Fábio Loures
Saraiva, Lorena Katheryne Vieira
Silva, Grace Ellen
Nogueira, Tatiane Mendonça
Silva, Ana Paula
Faria, Peter Bitencourt
author_role author
author2 Saraiva, Lorena Katheryne Vieira
Silva, Grace Ellen
Nogueira, Tatiane Mendonça
Silva, Ana Paula
Faria, Peter Bitencourt
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Cruz, Fábio Loures
Saraiva, Lorena Katheryne Vieira
Silva, Grace Ellen
Nogueira, Tatiane Mendonça
Silva, Ana Paula
Faria, Peter Bitencourt
dc.subject.por.fl_str_mv Breeds
Carcass yield
Gender
Tissue constituents
Constituintes teciduais
Galo Índio Gigante
Raças
Rendimento de carcaça
Sexo
topic Breeds
Carcass yield
Gender
Tissue constituents
Constituintes teciduais
Galo Índio Gigante
Raças
Rendimento de carcaça
Sexo
description This study aimed to assess the effect of different breeds and crosses of broiler chickens and sex on growth, carcass characteristics, and tissue composition. The experimental design was a completely randomized design in a 6 × 2 factorial scheme, with six genotypes (New Hampshire – NHS, Jersey Black Giant – JBG, Rodhe Island Red – RIR, Indigenous Giant – IG, and the hybrids IG × NHS and IG × JBG) and two sexes (male and female). Each treatment was composed of five replications with three broiler chickens, totaling 180 broiler chickens. Zootechnical performance and growth were assessed through the Gompertz equation parameters. After slaughtering at 105 days, the characteristics of carcass and main cuts were determined by means of weight, yield, and proportion of tissue constituents (meat, bone, and skin). Regarding the Gompertz equation parameters, the genotype NHS presented a higher growth potential. Males presented higher live weight and carcass weights, except for IG. No difference was observed between genotypes and sexes (P > 0.05) for carcass yield. The genotype JBG presented the highest average for breast yield (24.4%). Males presented the highest average for leg yield (30.5%). The genotype IG presented the highest value of breast meat yield (71.2%), being similar to the genotypes from the crosses IG × NHS, and IG × JBG (68.9 and 68.3%, respectively). For meat to breastbone ratio, the genotype IG presented the highest value (3.4) and, considering the sex, females presented a higher average (3.2) for this characteristic. Regarding the proportion of leg meat, an effect was observed for genotype and sex (P < 0.05) with the highest values observed for the hybrid IG × JBG and females (66.3 and 66.0%, respectively). For meat to leg bone ratio, the genotypes NHS, JBG, RIR, and IG × NHS presented the highest values (2.6, 2.7, 2.6, and 2.6, respectively), with females presenting the highest value (P < 0.05) (2.7). The genotypes IG, IG × NHS and IG × JBG presented the best growth and carcass characteristics, being recommended to be reared under an alternative system. Females presented the highest breast yield and, proportionally, the highest amount of leg meat, which are important attributes in a chicken meat production system.
publishDate 2018
dc.date.none.fl_str_mv 2018
2019-06-06T12:05:57Z
2019-06-06T12:05:57Z
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 CRUZ, F. L. et al. Growth and carcass characteristics of different crosses of broiler chickens reared under an alternative system. Semina: Ciências Agrárias, Londrina, v. 39, n. 1, p. 317-328, Jan./Feb. 2018.
http://repositorio.ufla.br/jspui/handle/1/34655
identifier_str_mv CRUZ, F. L. et al. Growth and carcass characteristics of different crosses of broiler chickens reared under an alternative system. Semina: Ciências Agrárias, Londrina, v. 39, n. 1, p. 317-328, Jan./Feb. 2018.
url http://repositorio.ufla.br/jspui/handle/1/34655
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial 4.0 International
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 Universidade Estadual de Londrina
publisher.none.fl_str_mv Universidade Estadual de Londrina
dc.source.none.fl_str_mv Semina: Ciências Agrárias
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
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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
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