Growth and carcass characteristics of different crosses of broiler chickens reared under an alternative system
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
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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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) |
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_ |
1815439304691810304 |