Muscularity and leg composition in lambs of different genotypes and ages at slaughter

Detalhes bibliográficos
Autor(a) principal: Sobrinho, Américo Garcia da Silva
Data de Publicação: 2005
Outros Autores: Purchas, Roger Walter, Kadim, Isam Tawfik, Yamamoto, Sandra Mari
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/7074
Resumo: Carcass morphologic characteristics, muscularity and leg tissue composition of pasture fed lambs (Limestone Downs farm, New Zealand) born to Romney ewes and sired by Romney, East Friesian x (Finn x Texel), and Finn x Poll Dorset were evaluated for carcass composition and meat quality. Animals were slaughtered in two age groups (150 and 300 days), each group containing 15 animals of each sire breed, comprising a total of 90 animals. The East Friesian x (Finn x Texel) sired group presented the highest weight-adjusted percentage of leg muscle (1,975 g), and relatively to the Romney group, it had similar leg muscularity (0.45), but higher muscle to bone ratio (7x6.69). Finn x Poll Dorset sired group presented less leg muscularity (0.44) than the other genotypes. Lambs slaughtered at the older age had longer and leaner carcasses at the same weight, probably because of summer-autumn adverse conditions, typically with slower pasture growth rates and herbage quality. Both genotype and slaughter age influence carcass morphologic characteristics, muscularity and leg tissue composition of lambs.
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spelling Muscularity and leg composition in lambs of different genotypes and ages at slaughterMusculosidade e composição da perna de ovinos de diferentes genótipos e idades ao abatecarcass; lamb; morphologycarcaça; cordeiros; morfologia Carcass morphologic characteristics, muscularity and leg tissue composition of pasture fed lambs (Limestone Downs farm, New Zealand) born to Romney ewes and sired by Romney, East Friesian x (Finn x Texel), and Finn x Poll Dorset were evaluated for carcass composition and meat quality. Animals were slaughtered in two age groups (150 and 300 days), each group containing 15 animals of each sire breed, comprising a total of 90 animals. The East Friesian x (Finn x Texel) sired group presented the highest weight-adjusted percentage of leg muscle (1,975 g), and relatively to the Romney group, it had similar leg muscularity (0.45), but higher muscle to bone ratio (7x6.69). Finn x Poll Dorset sired group presented less leg muscularity (0.44) than the other genotypes. Lambs slaughtered at the older age had longer and leaner carcasses at the same weight, probably because of summer-autumn adverse conditions, typically with slower pasture growth rates and herbage quality. Both genotype and slaughter age influence carcass morphologic characteristics, muscularity and leg tissue composition of lambs.Foram avaliadas as características morfológicas da carcaça, musculosidade e composição tecidual da perna de cordeiros criados em regime de pasto, provenientes de ovelhas Romney, acasaladas com três raças paternas (Romney, East Friesian x (Finn x Texel) e Finn x Poll Dorset). Aos 150 e 300 dias de idade, os cordeiros foram abatidos em dois lotes, cada um com 15 animais de cada raça paterna, num total de 90 animais. O grupo oriundo de animais East Friesian x (Finn x Texel) apresentou maior quantidade de músculo na perna (1.975 g) e, em comparação ao grupo Romney, semelhante musculosidade da perna (0,45) e maior relação músculo:osso (7x6,69). A musculosidade da perna nos animais descendentes de Finn x Poll Dorset foi menor (0,44), quando comparada à dos demais grupos. Cordeiros abatidos mais tardiamente apresentaram carcaças mais longas e magras, provavelmente pelas condições adversas do verão e do outono, em que são típicas a menor taxa de crescimento e a qualidade inferior de forragem. O genótipo e a idade de abate influem nas características morfológicas da carcaça, no índice de musculosidade e de composição tecidual da perna dos cordeiros.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraSobrinho, Américo Garcia da SilvaPurchas, Roger WalterKadim, Isam TawfikYamamoto, Sandra Mari2005-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7074Pesquisa Agropecuaria Brasileira; v.40, n.11, nov. 2005; 1129-1134Pesquisa Agropecuária Brasileira; v.40, n.11, nov. 2005; 1129-11341678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7074/4122info:eu-repo/semantics/openAccess2010-09-09T12:24:05Zoai:ojs.seer.sct.embrapa.br:article/7074Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-09-09T12:24:05Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Muscularity and leg composition in lambs of different genotypes and ages at slaughter
Musculosidade e composição da perna de ovinos de diferentes genótipos e idades ao abate
title Muscularity and leg composition in lambs of different genotypes and ages at slaughter
spellingShingle Muscularity and leg composition in lambs of different genotypes and ages at slaughter
Sobrinho, Américo Garcia da Silva
carcass; lamb; morphology
carcaça; cordeiros; morfologia
title_short Muscularity and leg composition in lambs of different genotypes and ages at slaughter
title_full Muscularity and leg composition in lambs of different genotypes and ages at slaughter
title_fullStr Muscularity and leg composition in lambs of different genotypes and ages at slaughter
title_full_unstemmed Muscularity and leg composition in lambs of different genotypes and ages at slaughter
title_sort Muscularity and leg composition in lambs of different genotypes and ages at slaughter
author Sobrinho, Américo Garcia da Silva
author_facet Sobrinho, Américo Garcia da Silva
Purchas, Roger Walter
Kadim, Isam Tawfik
Yamamoto, Sandra Mari
author_role author
author2 Purchas, Roger Walter
Kadim, Isam Tawfik
Yamamoto, Sandra Mari
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Sobrinho, Américo Garcia da Silva
Purchas, Roger Walter
Kadim, Isam Tawfik
Yamamoto, Sandra Mari
dc.subject.por.fl_str_mv carcass; lamb; morphology
carcaça; cordeiros; morfologia
topic carcass; lamb; morphology
carcaça; cordeiros; morfologia
description Carcass morphologic characteristics, muscularity and leg tissue composition of pasture fed lambs (Limestone Downs farm, New Zealand) born to Romney ewes and sired by Romney, East Friesian x (Finn x Texel), and Finn x Poll Dorset were evaluated for carcass composition and meat quality. Animals were slaughtered in two age groups (150 and 300 days), each group containing 15 animals of each sire breed, comprising a total of 90 animals. The East Friesian x (Finn x Texel) sired group presented the highest weight-adjusted percentage of leg muscle (1,975 g), and relatively to the Romney group, it had similar leg muscularity (0.45), but higher muscle to bone ratio (7x6.69). Finn x Poll Dorset sired group presented less leg muscularity (0.44) than the other genotypes. Lambs slaughtered at the older age had longer and leaner carcasses at the same weight, probably because of summer-autumn adverse conditions, typically with slower pasture growth rates and herbage quality. Both genotype and slaughter age influence carcass morphologic characteristics, muscularity and leg tissue composition of lambs.
publishDate 2005
dc.date.none.fl_str_mv 2005-11-01
dc.type.none.fl_str_mv
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://seer.sct.embrapa.br/index.php/pab/article/view/7074
url https://seer.sct.embrapa.br/index.php/pab/article/view/7074
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/7074/4122
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.40, n.11, nov. 2005; 1129-1134
Pesquisa Agropecuária Brasileira; v.40, n.11, nov. 2005; 1129-1134
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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