Substituição do milho por milheto sobre as características de carcaça e carne de novilhos confinados de diferentes predominâncias genéticas
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFG |
Texto Completo: | http://repositorio.bc.ufg.br/tede/handle/tede/3062 |
Resumo: | This study aimed at assessing the carcass and meat traits as well as fatty acid profile of crossbred steers of European or zebu genotypic predominance, finished in feedlot, fed diets with high percentage of concentrate (80%) containing different levels of grounded millet grain as replacement for grounded corn grain (0, 33, 66 and 100%). We allocated in 16 collective pens 45 steers with European predominance and 44 with zebu-predominance, with average initial weight of 317.8 and 320.7 kg, respectively, and average age of 21 month. At the end of the finishing period, we slaughtered six animals of each genetic group, randomly chosen within each level of replacement of corn by millet grain. The experimental design was completely randomized with treatments in a 4x2 factorial arrangement using six replicates. The replacement of corn grain by millet grain did not significantly affect slaughter weight (480.4 kg), hot carcass weight (259.5 kg), carcass yield (54.1%) and subcutaneous fat thickness (3.95 mm). Steers with predominant European genotype showed significantly higher values for slaughter weight (507.6 vs. 453.3 kg), hot carcass weight (269.6 vs. 249.3 kg) and Longissimus dorsi area (65.34 vs 56.83 cm2); however, they had lower carcass yield (53,2 vs. 55,00%). Increasing the proportion of millet in the diet linearly increased the arachidic (C20:0), heneicosanoic (C21:0), linolenic (C18:3 n-3) and di-homo linolenic (C20:3 n-6) fatty acids. European steers meat showed less content of myristic (C14:0), heneicosanoic (C21:0) and linolenic (C18:3 n-6) fatty acids. The total concentration of saturated (45.2%), monounsaturated (41.2%) and polyunsaturated (8.7%) fatty acids and, monounsaturated/saturated (1.09) and polyunsaturated/saturated (0.18) relationship were not affected by the factors studied. Millet grain can be used in replacement of corn grain for finishing steers since it does not change carcass traits of economic interest. The increase in the percentage of millet grain in the diet of European and zebu crossbred steers improves the ratio between n-6/n-3 fatty acids. |
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Restle, Joãohttp://lattes.cnpq.br/7559938697233077Padua, Joao Teodorohttp://lattes.cnpq.br/0308044304591375Fernandes, Juliano José de Resendehttp://lattes.cnpq.br/7949776443064259Taveira, Rodrigo Zaidenhttp://lattes.cnpq.br/5846781117272342Oliveira Júnior, Reinaldo Cunha dehttp://lattes.cnpq.br/4597181421685935Miyagi, Eliane Sayurihttp://lattes.cnpq.br/5838290185532582Lage, Moacir Evandrohttp://lattes.cnpq.br/2053334263459111http://lattes.cnpq.br/7735978899833284Silva, Rodrigo Medeiros da2014-09-15T18:13:10Z2013-11-10SILVA, Rodrigo Medeiros da. Substituição do milho por milheto sobre as características de carcaça e carne de novilhos confinados de diferentes predominâncias genéticas. 2013. 101 f. Tese (Doutorado em Ciência Animal) - Universidade Federal de Goiás, Goiânia, 2013.http://repositorio.bc.ufg.br/tede/handle/tede/3062ark:/38995/0013000005h3fThis study aimed at assessing the carcass and meat traits as well as fatty acid profile of crossbred steers of European or zebu genotypic predominance, finished in feedlot, fed diets with high percentage of concentrate (80%) containing different levels of grounded millet grain as replacement for grounded corn grain (0, 33, 66 and 100%). We allocated in 16 collective pens 45 steers with European predominance and 44 with zebu-predominance, with average initial weight of 317.8 and 320.7 kg, respectively, and average age of 21 month. At the end of the finishing period, we slaughtered six animals of each genetic group, randomly chosen within each level of replacement of corn by millet grain. The experimental design was completely randomized with treatments in a 4x2 factorial arrangement using six replicates. The replacement of corn grain by millet grain did not significantly affect slaughter weight (480.4 kg), hot carcass weight (259.5 kg), carcass yield (54.1%) and subcutaneous fat thickness (3.95 mm). Steers with predominant European genotype showed significantly higher values for slaughter weight (507.6 vs. 453.3 kg), hot carcass weight (269.6 vs. 249.3 kg) and Longissimus dorsi area (65.34 vs 56.83 cm2); however, they had lower carcass yield (53,2 vs. 55,00%). Increasing the proportion of millet in the diet linearly increased the arachidic (C20:0), heneicosanoic (C21:0), linolenic (C18:3 n-3) and di-homo linolenic (C20:3 n-6) fatty acids. European steers meat showed less content of myristic (C14:0), heneicosanoic (C21:0) and linolenic (C18:3 n-6) fatty acids. The total concentration of saturated (45.2%), monounsaturated (41.2%) and polyunsaturated (8.7%) fatty acids and, monounsaturated/saturated (1.09) and polyunsaturated/saturated (0.18) relationship were not affected by the factors studied. Millet grain can be used in replacement of corn grain for finishing steers since it does not change carcass traits of economic interest. The increase in the percentage of millet grain in the diet of European and zebu crossbred steers improves the ratio between n-6/n-3 fatty acids.Objetivou-se avaliar as características de carcaça, da carne e perfil de ácidos graxos da carne de novilhos inteiros mestiços com predominância genotípica européia ou zebuína, alimentados em confinamento com dietas com elevada proporção de concentrado (80%) contendo diferentes níveis de grão de milheto moído em substituição ao grão de milho moído (0, 33, 66 e 100%). Foram confinados, em 16 baias coletivas, 45 novilhos com predominância genotípica européia e 44 novilhos com predominância genotípica zebuína, com peso médio inicial de 317,8 e 320,7 kg, respectivamente, e 21 meses de idade. Ao final do período de confinamento foram abatidos seis animais de cada grupo genético, escolhidos aleatoriamente dentro de cada nível de substituição do grão de milho pelo de milheto. O delineamento experimental foi o inteiramente casualizado, com os tratamentos em arranjo fatorial 4x2, utilizando seis repetições. A substituição do grão de milho pelo grão de milheto não influenciou significativamente os pesos de abate (480,4 kg), de carcaça quente (259,5 kg), rendimento de carcaça quente (54,1 %) e espessura de gordura subcutânea (3,95 mm). Novilhos com predominância genotípica européia apresentaram valores significativamente superiores para peso de abate (507,6 vs 453,3 kg), peso de carcaça quente (269,6 vs 249,3 kg) e área do músculo Longissimus dorsi (65,34 vs 56,83 cm2), porém, foram inferiores no rendimento de carcaça quente (53,2 vs 55,0 %). O avanço da percentagem do grão de milheto na dieta elevou linearmente a participação dos ácidos graxos araquídico (C20:0), heneicosanóico (C21:0), linolênico (C18:3 n-3) e di-homo linolênico (C20:3 n-6). Novilhos E apresentaram carne com menor (P<0,05) teor de mirístico (C14:0), heneicosanóico (C21:0) e linolênico (C18:3 n-6) do que novilhos Z. A concentração total de ácidos graxos saturados (45,2%), monoinsaturados (41,2%) e poliinsaturados (8,7%) e, a relação monoinsaturados/saturados (1,09) e poliinsaturados/saturados (0,18) não foram alterados pelos fatores estudados. O grão de milheto pode ser utilizado em substituição ao grão de milho, pois não altera as principais características de carcaça de interesse econômico de novilhos terminados em confinamento. O aumento da percentagem de grão de milheto na dieta de novilhos mestiços europeus ou zebuínos melhora a relação entre os ácidos graxos n-6/n-3.Submitted by Jaqueline Silva (jtas29@gmail.com) on 2014-09-15T18:12:49Z No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Rodrigo Medeiros da Silva.pdf: 1734954 bytes, checksum: bb3851360da8bd727dad4bc7836a5534 (MD5)Approved for entry into archive by Jaqueline Silva (jtas29@gmail.com) on 2014-09-15T18:13:10Z (GMT) No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Rodrigo Medeiros da Silva.pdf: 1734954 bytes, checksum: bb3851360da8bd727dad4bc7836a5534 (MD5)Made available in DSpace on 2014-09-15T18:13:10Z (GMT). No. of bitstreams: 2 license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Rodrigo Medeiros da Silva.pdf: 1734954 bytes, checksum: bb3851360da8bd727dad4bc7836a5534 (MD5) Previous issue date: 2013-11-10application/pdfhttp://repositorio.bc.ufg.br/tede/retrieve/7635/Rodrigo%20Medeiros%20da%20Silva.pdf.jpgporUniversidade Federal de GoiásPrograma de Pós-graduação em Ciência Animal (EVZ)UFGBrasilEscola de Veterinária e Zootecnia - EVZ (RG)http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessCLAConfinamentoGordura de coberturaGordura intramuscularPeso de carcaçaTraseiro especialCarcass weightConfinementFat thicknessIntramuscular fatSaw cutZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMALSubstituição do milho por milheto sobre as características de carcaça e carne de novilhos confinados de diferentes predominâncias genéticasinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis4581960685150189167600600600-6217552114249094582-2025817317906230692reponame:Repositório Institucional da UFGinstname:Universidade Federal de Goiás (UFG)instacron:UFGORIGINALRodrigo Medeiros da Silva.pdfRodrigo Medeiros da Silva.pdfapplication/pdf1734954http://repositorio.bc.ufg.br/tede/bitstreams/74e38022-823a-4511-9c26-59571090bce7/downloadbb3851360da8bd727dad4bc7836a5534MD52TEXTRodrigo Medeiros da Silva.pdf.txtRodrigo Medeiros da Silva.pdf.txtExtracted Texttext/plain196375http://repositorio.bc.ufg.br/tede/bitstreams/096b2c26-e5c5-4c2d-8e5e-45d6649c3661/downloadf09811ad002ef7ac180212ed7e6cd862MD57THUMBNAILRodrigo Medeiros da Silva.pdf.jpgRodrigo Medeiros da Silva.pdf.jpgGenerated Thumbnailimage/jpeg1943http://repositorio.bc.ufg.br/tede/bitstreams/ad37198d-a35b-4373-a0b2-dd4c2aa157a9/downloadcc73c4c239a4c332d642ba1e7c7a9fb2MD58LICENSElicense.txtlicense.txttext/plain; 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dc.title.por.fl_str_mv |
Substituição do milho por milheto sobre as características de carcaça e carne de novilhos confinados de diferentes predominâncias genéticas |
title |
Substituição do milho por milheto sobre as características de carcaça e carne de novilhos confinados de diferentes predominâncias genéticas |
spellingShingle |
Substituição do milho por milheto sobre as características de carcaça e carne de novilhos confinados de diferentes predominâncias genéticas Silva, Rodrigo Medeiros da CLA Confinamento Gordura de cobertura Gordura intramuscular Peso de carcaça Traseiro especial Carcass weight Confinement Fat thickness Intramuscular fat Saw cut ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL |
title_short |
Substituição do milho por milheto sobre as características de carcaça e carne de novilhos confinados de diferentes predominâncias genéticas |
title_full |
Substituição do milho por milheto sobre as características de carcaça e carne de novilhos confinados de diferentes predominâncias genéticas |
title_fullStr |
Substituição do milho por milheto sobre as características de carcaça e carne de novilhos confinados de diferentes predominâncias genéticas |
title_full_unstemmed |
Substituição do milho por milheto sobre as características de carcaça e carne de novilhos confinados de diferentes predominâncias genéticas |
title_sort |
Substituição do milho por milheto sobre as características de carcaça e carne de novilhos confinados de diferentes predominâncias genéticas |
author |
Silva, Rodrigo Medeiros da |
author_facet |
Silva, Rodrigo Medeiros da |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Restle, João |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/7559938697233077 |
dc.contributor.advisor-co1.fl_str_mv |
Padua, Joao Teodoro |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/0308044304591375 |
dc.contributor.advisor-co2.fl_str_mv |
Fernandes, Juliano José de Resende |
dc.contributor.advisor-co2Lattes.fl_str_mv |
http://lattes.cnpq.br/7949776443064259 |
dc.contributor.referee1.fl_str_mv |
Taveira, Rodrigo Zaiden |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/5846781117272342 |
dc.contributor.referee2.fl_str_mv |
Oliveira Júnior, Reinaldo Cunha de |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/4597181421685935 |
dc.contributor.referee3.fl_str_mv |
Miyagi, Eliane Sayuri |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/5838290185532582 |
dc.contributor.referee4.fl_str_mv |
Lage, Moacir Evandro |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/2053334263459111 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/7735978899833284 |
dc.contributor.author.fl_str_mv |
Silva, Rodrigo Medeiros da |
contributor_str_mv |
Restle, João Padua, Joao Teodoro Fernandes, Juliano José de Resende Taveira, Rodrigo Zaiden Oliveira Júnior, Reinaldo Cunha de Miyagi, Eliane Sayuri Lage, Moacir Evandro |
dc.subject.por.fl_str_mv |
CLA Confinamento Gordura de cobertura Gordura intramuscular Peso de carcaça Traseiro especial |
topic |
CLA Confinamento Gordura de cobertura Gordura intramuscular Peso de carcaça Traseiro especial Carcass weight Confinement Fat thickness Intramuscular fat Saw cut ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL |
dc.subject.eng.fl_str_mv |
Carcass weight Confinement Fat thickness Intramuscular fat Saw cut |
dc.subject.cnpq.fl_str_mv |
ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL |
description |
This study aimed at assessing the carcass and meat traits as well as fatty acid profile of crossbred steers of European or zebu genotypic predominance, finished in feedlot, fed diets with high percentage of concentrate (80%) containing different levels of grounded millet grain as replacement for grounded corn grain (0, 33, 66 and 100%). We allocated in 16 collective pens 45 steers with European predominance and 44 with zebu-predominance, with average initial weight of 317.8 and 320.7 kg, respectively, and average age of 21 month. At the end of the finishing period, we slaughtered six animals of each genetic group, randomly chosen within each level of replacement of corn by millet grain. The experimental design was completely randomized with treatments in a 4x2 factorial arrangement using six replicates. The replacement of corn grain by millet grain did not significantly affect slaughter weight (480.4 kg), hot carcass weight (259.5 kg), carcass yield (54.1%) and subcutaneous fat thickness (3.95 mm). Steers with predominant European genotype showed significantly higher values for slaughter weight (507.6 vs. 453.3 kg), hot carcass weight (269.6 vs. 249.3 kg) and Longissimus dorsi area (65.34 vs 56.83 cm2); however, they had lower carcass yield (53,2 vs. 55,00%). Increasing the proportion of millet in the diet linearly increased the arachidic (C20:0), heneicosanoic (C21:0), linolenic (C18:3 n-3) and di-homo linolenic (C20:3 n-6) fatty acids. European steers meat showed less content of myristic (C14:0), heneicosanoic (C21:0) and linolenic (C18:3 n-6) fatty acids. The total concentration of saturated (45.2%), monounsaturated (41.2%) and polyunsaturated (8.7%) fatty acids and, monounsaturated/saturated (1.09) and polyunsaturated/saturated (0.18) relationship were not affected by the factors studied. Millet grain can be used in replacement of corn grain for finishing steers since it does not change carcass traits of economic interest. The increase in the percentage of millet grain in the diet of European and zebu crossbred steers improves the ratio between n-6/n-3 fatty acids. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013-11-10 |
dc.date.accessioned.fl_str_mv |
2014-09-15T18:13:10Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
SILVA, Rodrigo Medeiros da. Substituição do milho por milheto sobre as características de carcaça e carne de novilhos confinados de diferentes predominâncias genéticas. 2013. 101 f. Tese (Doutorado em Ciência Animal) - Universidade Federal de Goiás, Goiânia, 2013. |
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http://repositorio.bc.ufg.br/tede/handle/tede/3062 |
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ark:/38995/0013000005h3f |
identifier_str_mv |
SILVA, Rodrigo Medeiros da. Substituição do milho por milheto sobre as características de carcaça e carne de novilhos confinados de diferentes predominâncias genéticas. 2013. 101 f. Tese (Doutorado em Ciência Animal) - Universidade Federal de Goiás, Goiânia, 2013. ark:/38995/0013000005h3f |
url |
http://repositorio.bc.ufg.br/tede/handle/tede/3062 |
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por |
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por |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ |
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openAccess |
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Universidade Federal de Goiás |
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Programa de Pós-graduação em Ciência Animal (EVZ) |
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UFG |
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Brasil |
dc.publisher.department.fl_str_mv |
Escola de Veterinária e Zootecnia - EVZ (RG) |
publisher.none.fl_str_mv |
Universidade Federal de Goiás |
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Repositório Institucional da UFG |
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