Protein levels for Landrace and Duroc boars

Detalhes bibliográficos
Autor(a) principal: Gaitân, José Antonio
Data de Publicação: 2014
Outros Autores: Barbosa, Hacy Pinto, Sancevero, Antonio Batista, Coelho, Luiz Sérgio Sobreira, Costa, Valdomiro, Gontijo, Vicente P.M., Coelho, Mary Rocha, Tramontini, Paulo
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/16640
Resumo: The main objective was to study the effects of several protein levels sequences of Landrace and Duroc boars reared under two feeding systems. The results of weight gain from 25 up to 100 kg live weight, showed that the best daily gain was achieved on the sequence levels of 16% protein during growing phase and 14% protein for finishing phase. This daily gain was statistically different (P <0.05) from 18-16% or 20-18% protein seguences. The best feed efficiency and the lowest feed intake were achieved on the sequence levels of 18-16% protein for growing finishing phases, respectively. These data were statistically different (P <0.05) from seguence 14-12% but were not different from sequences 16-14 or 20-18% protein. The carcass traits studied: fat thickness, loin eye area, percent of ham and relation meat/fat - showed a linear response when analyzed through regression. This linearity means that increasing protein levels in the diet, the carcass traits were improved. Carcass lenght was unaffected by protein levels. The feeding systems controlled or ad libitum did not affect performance or carcass traits of the animals. The Landrace showed the best carcass traits (P <0.05) when compared to Duroc breed.
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spelling Protein levels for Landrace and Duroc boarsNíveis protéicos para suínos Duroc e Landracepigs; nutrition; growing; finishing – carcass; protein levelssuínos; nutrição; crescimento; terminação; carcaça; níveis de proteínaThe main objective was to study the effects of several protein levels sequences of Landrace and Duroc boars reared under two feeding systems. The results of weight gain from 25 up to 100 kg live weight, showed that the best daily gain was achieved on the sequence levels of 16% protein during growing phase and 14% protein for finishing phase. This daily gain was statistically different (P <0.05) from 18-16% or 20-18% protein seguences. The best feed efficiency and the lowest feed intake were achieved on the sequence levels of 18-16% protein for growing finishing phases, respectively. These data were statistically different (P <0.05) from seguence 14-12% but were not different from sequences 16-14 or 20-18% protein. The carcass traits studied: fat thickness, loin eye area, percent of ham and relation meat/fat - showed a linear response when analyzed through regression. This linearity means that increasing protein levels in the diet, the carcass traits were improved. Carcass lenght was unaffected by protein levels. The feeding systems controlled or ad libitum did not affect performance or carcass traits of the animals. The Landrace showed the best carcass traits (P <0.05) when compared to Duroc breed.Foi estudado o efeito de quatro sequências de níveis protéicos sobre suínos Duroc e Landrace, submetidos à dois sistemas de alimentação. Os resultados de ganho em peso, dos 25 aos 100 kg de peso vivo, mostraram que a sequência de níveis de 16% de proteína para o crescimento e 14% na terminação, sustentou ganhos significativamente superiores (P <0,05) às sequências de 14-12% não diferindo porém das sequências de 18 - 16 e 20 -18. A melhor conversão alimentar e o menor consumo de alimento foram observados quando se ministrou a sequência protéica de 18 - 16% respectivamente para crescimento - terminação com diferença significativa (P <0,05) em relação a sequência 14 -12% não diferindo porém de 16 - 14 ou 20 - 18%. As características de carcaça estudadas: espessura de toucinho, área do olho de lombo, percentagem de pernil e relação carne/gordura apresentaram linearidade quando feita a análise de regressão; mostrando que a medida que a percentagem de proteína aumentou na ração, houve melhoria das mesmas. O comprimento de carcaça não foi afetado pelos diferentes níveis protéicos utilizados nas rações. Os sistemas de alimentação, controlada ou à vontade, não tiveram nenhum efeito sobre o desempenho dos animais ou nas características de carcaça. A raça Landrace apresentou as melhores características de carcaças (P <0,05) quando comparada com a raça Duroc.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraGaitân, José AntonioBarbosa, Hacy PintoSancevero, Antonio BatistaCoelho, Luiz Sérgio SobreiraCosta, ValdomiroGontijo, Vicente P.M.Coelho, Mary RochaTramontini, Paulo2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/16640Pesquisa Agropecuaria Brasileira; v.14, n.1, jan. 1979; 37-46Pesquisa Agropecuária Brasileira; v.14, n.1, jan. 1979; 37-461678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/16640/10945info:eu-repo/semantics/openAccess2014-04-15T19:21:30Zoai:ojs.seer.sct.embrapa.br:article/16640Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T19:21:30Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Protein levels for Landrace and Duroc boars
Níveis protéicos para suínos Duroc e Landrace
title Protein levels for Landrace and Duroc boars
spellingShingle Protein levels for Landrace and Duroc boars
Gaitân, José Antonio
pigs; nutrition; growing; finishing – carcass; protein levels
suínos; nutrição; crescimento; terminação; carcaça; níveis de proteína
title_short Protein levels for Landrace and Duroc boars
title_full Protein levels for Landrace and Duroc boars
title_fullStr Protein levels for Landrace and Duroc boars
title_full_unstemmed Protein levels for Landrace and Duroc boars
title_sort Protein levels for Landrace and Duroc boars
author Gaitân, José Antonio
author_facet Gaitân, José Antonio
Barbosa, Hacy Pinto
Sancevero, Antonio Batista
Coelho, Luiz Sérgio Sobreira
Costa, Valdomiro
Gontijo, Vicente P.M.
Coelho, Mary Rocha
Tramontini, Paulo
author_role author
author2 Barbosa, Hacy Pinto
Sancevero, Antonio Batista
Coelho, Luiz Sérgio Sobreira
Costa, Valdomiro
Gontijo, Vicente P.M.
Coelho, Mary Rocha
Tramontini, Paulo
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Gaitân, José Antonio
Barbosa, Hacy Pinto
Sancevero, Antonio Batista
Coelho, Luiz Sérgio Sobreira
Costa, Valdomiro
Gontijo, Vicente P.M.
Coelho, Mary Rocha
Tramontini, Paulo
dc.subject.por.fl_str_mv pigs; nutrition; growing; finishing – carcass; protein levels
suínos; nutrição; crescimento; terminação; carcaça; níveis de proteína
topic pigs; nutrition; growing; finishing – carcass; protein levels
suínos; nutrição; crescimento; terminação; carcaça; níveis de proteína
description The main objective was to study the effects of several protein levels sequences of Landrace and Duroc boars reared under two feeding systems. The results of weight gain from 25 up to 100 kg live weight, showed that the best daily gain was achieved on the sequence levels of 16% protein during growing phase and 14% protein for finishing phase. This daily gain was statistically different (P <0.05) from 18-16% or 20-18% protein seguences. The best feed efficiency and the lowest feed intake were achieved on the sequence levels of 18-16% protein for growing finishing phases, respectively. These data were statistically different (P <0.05) from seguence 14-12% but were not different from sequences 16-14 or 20-18% protein. The carcass traits studied: fat thickness, loin eye area, percent of ham and relation meat/fat - showed a linear response when analyzed through regression. This linearity means that increasing protein levels in the diet, the carcass traits were improved. Carcass lenght was unaffected by protein levels. The feeding systems controlled or ad libitum did not affect performance or carcass traits of the animals. The Landrace showed the best carcass traits (P <0.05) when compared to Duroc breed.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-15
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/16640
url https://seer.sct.embrapa.br/index.php/pab/article/view/16640
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/16640/10945
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.14, n.1, jan. 1979; 37-46
Pesquisa Agropecuária Brasileira; v.14, n.1, jan. 1979; 37-46
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
_version_ 1793416663479091200

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