Growth and deposition of body components of intermediate and high performance broilers
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/185860 |
Resumo: | The objectives of the present study were to determine the parameters of Gompertz equations and to determine curves and growth rate, feed intake and body component deposition, as well as allometric coefficients of body water, protein, and fat relative to live weight of male and female broilers of intermediate performance (C44) and high performance (Cobb-500) genetic strains. In total, 384 one-d-old chicks were distributed into four treatments: male Cobb 500, male C44, female Cobb 500, and female C44, with six replicates of 16 birds, according to a completely randomized experimental design. Average body weight, weight gain, and feed intake were weekly determined, and six birds, representing the average weight of each treatment, were sacrificed to determine body composition. Growth curves were built applying Gompertz function, with excellent fit, and growth, feed intake, and tissue deposition rates were obtained by its derivatives. Superior growth rate was obtained for Cobb 500 male broilers. This genetic strain has higher feed intake capacity, which is achieved earlier than in the C44 strain. Protein and fat deposition maturity was reached earlier in males than in females in Cobb 500. The allometric coefficients showed earlier maturity for body water in C44 and females. In terms of body protein, male Cobb 500 broilers reached maturity earlier than females and C44. Body fat deposition maturity was reached earlier in Cobb 500 than in C44. The Gompertz equations obtained in the present study efficiently described body growth, feed intake, and deposition of body components, with a coefficient of determination higher than 0.99. |
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Henn, João DionísioBockor, LucianeRibeiro, Andrea Machado LealColdebella, ArleiKessler, Alexandre de Mello2018-12-05T02:43:45Z20141516-635Xhttp://hdl.handle.net/10183/185860001079051The objectives of the present study were to determine the parameters of Gompertz equations and to determine curves and growth rate, feed intake and body component deposition, as well as allometric coefficients of body water, protein, and fat relative to live weight of male and female broilers of intermediate performance (C44) and high performance (Cobb-500) genetic strains. In total, 384 one-d-old chicks were distributed into four treatments: male Cobb 500, male C44, female Cobb 500, and female C44, with six replicates of 16 birds, according to a completely randomized experimental design. Average body weight, weight gain, and feed intake were weekly determined, and six birds, representing the average weight of each treatment, were sacrificed to determine body composition. Growth curves were built applying Gompertz function, with excellent fit, and growth, feed intake, and tissue deposition rates were obtained by its derivatives. Superior growth rate was obtained for Cobb 500 male broilers. This genetic strain has higher feed intake capacity, which is achieved earlier than in the C44 strain. Protein and fat deposition maturity was reached earlier in males than in females in Cobb 500. The allometric coefficients showed earlier maturity for body water in C44 and females. In terms of body protein, male Cobb 500 broilers reached maturity earlier than females and C44. Body fat deposition maturity was reached earlier in Cobb 500 than in C44. The Gompertz equations obtained in the present study efficiently described body growth, feed intake, and deposition of body components, with a coefficient of determination higher than 0.99.application/pdfengRevista brasileira de ciência avícola= Brazilian journal of poultry science. Campinas, SP. Vol. 16, n. 3 (jul./set. 2014), p. 319-328Frango de corteGanho de pesoNutricao animalComposição corporalBody compositionGompertz curveGrowth rateCobb 500C44Growth and deposition of body components of intermediate and high performance broilersinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001079051.pdf.txt001079051.pdf.txtExtracted Texttext/plain38993http://www.lume.ufrgs.br/bitstream/10183/185860/2/001079051.pdf.txtdc1f6521e480449d22fd7c67ae9a8052MD52ORIGINAL001079051.pdfTexto completo (inglês)application/pdf194453http://www.lume.ufrgs.br/bitstream/10183/185860/1/001079051.pdf3c096850968331d080d8f488c8d665d5MD5110183/1858602018-12-06 02:43:35.681096oai:www.lume.ufrgs.br:10183/185860Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-12-06T04:43:35Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Growth and deposition of body components of intermediate and high performance broilers |
title |
Growth and deposition of body components of intermediate and high performance broilers |
spellingShingle |
Growth and deposition of body components of intermediate and high performance broilers Henn, João Dionísio Frango de corte Ganho de peso Nutricao animal Composição corporal Body composition Gompertz curve Growth rate Cobb 500 C44 |
title_short |
Growth and deposition of body components of intermediate and high performance broilers |
title_full |
Growth and deposition of body components of intermediate and high performance broilers |
title_fullStr |
Growth and deposition of body components of intermediate and high performance broilers |
title_full_unstemmed |
Growth and deposition of body components of intermediate and high performance broilers |
title_sort |
Growth and deposition of body components of intermediate and high performance broilers |
author |
Henn, João Dionísio |
author_facet |
Henn, João Dionísio Bockor, Luciane Ribeiro, Andrea Machado Leal Coldebella, Arlei Kessler, Alexandre de Mello |
author_role |
author |
author2 |
Bockor, Luciane Ribeiro, Andrea Machado Leal Coldebella, Arlei Kessler, Alexandre de Mello |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Henn, João Dionísio Bockor, Luciane Ribeiro, Andrea Machado Leal Coldebella, Arlei Kessler, Alexandre de Mello |
dc.subject.por.fl_str_mv |
Frango de corte Ganho de peso Nutricao animal Composição corporal |
topic |
Frango de corte Ganho de peso Nutricao animal Composição corporal Body composition Gompertz curve Growth rate Cobb 500 C44 |
dc.subject.eng.fl_str_mv |
Body composition Gompertz curve Growth rate Cobb 500 C44 |
description |
The objectives of the present study were to determine the parameters of Gompertz equations and to determine curves and growth rate, feed intake and body component deposition, as well as allometric coefficients of body water, protein, and fat relative to live weight of male and female broilers of intermediate performance (C44) and high performance (Cobb-500) genetic strains. In total, 384 one-d-old chicks were distributed into four treatments: male Cobb 500, male C44, female Cobb 500, and female C44, with six replicates of 16 birds, according to a completely randomized experimental design. Average body weight, weight gain, and feed intake were weekly determined, and six birds, representing the average weight of each treatment, were sacrificed to determine body composition. Growth curves were built applying Gompertz function, with excellent fit, and growth, feed intake, and tissue deposition rates were obtained by its derivatives. Superior growth rate was obtained for Cobb 500 male broilers. This genetic strain has higher feed intake capacity, which is achieved earlier than in the C44 strain. Protein and fat deposition maturity was reached earlier in males than in females in Cobb 500. The allometric coefficients showed earlier maturity for body water in C44 and females. In terms of body protein, male Cobb 500 broilers reached maturity earlier than females and C44. Body fat deposition maturity was reached earlier in Cobb 500 than in C44. The Gompertz equations obtained in the present study efficiently described body growth, feed intake, and deposition of body components, with a coefficient of determination higher than 0.99. |
publishDate |
2014 |
dc.date.issued.fl_str_mv |
2014 |
dc.date.accessioned.fl_str_mv |
2018-12-05T02:43:45Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
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info:eu-repo/semantics/publishedVersion |
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publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/185860 |
dc.identifier.issn.pt_BR.fl_str_mv |
1516-635X |
dc.identifier.nrb.pt_BR.fl_str_mv |
001079051 |
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url |
http://hdl.handle.net/10183/185860 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Revista brasileira de ciência avícola= Brazilian journal of poultry science. Campinas, SP. Vol. 16, n. 3 (jul./set. 2014), p. 319-328 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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