Influence of genetic group and feeding on performance of lambs in confinement

Detalhes bibliográficos
Autor(a) principal: Barros, Nelson Nogueira
Data de Publicação: 2003
Outros Autores: Vasconcelos, Vânia Rodrigues de, Araújo, Marcelo Renato Alves de, Martins, Espedito Cezário
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/6679
Resumo: The objective of this work was to establish the influence of breeding ram and feeding on performance of lambs in confinement. The experimental design was completely randomized, in a 2x4 factorial arrangement. The treatments were two genetic groups (Santa Inês x not defined breed (NDB) and Somalis x NDB) and concentrate (corn, soybean meal plus mineral salt) at 15%, 30%, 45% and 60%. Thirty two animals were confined in individual stalls and each was one repetition. The diets were composed by concentrate and roughage, leucaena hay (Leucaena leucocephala), as a complete ration. The slaughter weight increased and the feed efficiency improved (P < 0.05) as concentrate in diet was increased. A quadratic effect on dry matter intake and organic matter intake with maximum values of 35.29% and 35.36%, respectively, was observed. All estimated gross margin were positive. There was no difference (P > 0.05) among concentrates; however, the genetic group Somalis x NDB was superior (P < 0.05) to Santa Inês x NDB.
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spelling Influence of genetic group and feeding on performance of lambs in confinementInfluência do grupo genético e da alimentação sobre o desempenho de cordeiros em confinamentoLeucaena leucocephala; hay; feed intake; feed conversion efficiency; weight gain; sheepLeucaena leucocephala; feno; ingestão de alimento; eficácia alimentar; ganho de peso; ovinoThe objective of this work was to establish the influence of breeding ram and feeding on performance of lambs in confinement. The experimental design was completely randomized, in a 2x4 factorial arrangement. The treatments were two genetic groups (Santa Inês x not defined breed (NDB) and Somalis x NDB) and concentrate (corn, soybean meal plus mineral salt) at 15%, 30%, 45% and 60%. Thirty two animals were confined in individual stalls and each was one repetition. The diets were composed by concentrate and roughage, leucaena hay (Leucaena leucocephala), as a complete ration. The slaughter weight increased and the feed efficiency improved (P < 0.05) as concentrate in diet was increased. A quadratic effect on dry matter intake and organic matter intake with maximum values of 35.29% and 35.36%, respectively, was observed. All estimated gross margin were positive. There was no difference (P > 0.05) among concentrates; however, the genetic group Somalis x NDB was superior (P < 0.05) to Santa Inês x NDB.O objetivo deste trabalho foi estabelecer a influência do reprodutor e da alimentação sobre o desempenho de cordeiros em confinamento. O delineamento experimental foi o inteiramente casualizado, com arranjo fatorial 2x4, costituído de dois grupos genéticos (Santa Inês x sem raça definida (SRD) e Somalis x SRD) e concentrado de milho em gão, farelo de soja e sal mineral a 15%, 30%, 45% e 60%. Trinta e dois animais foram confinados em baias individuais e cada um constituiu uma repetição. As dietas eram compostas de feno de leucena (Leucaena leucocephala) e concentrado, na forma de ração completa. O aumento de concentrado na dieta dos animais causou incrementos lineares (P < 0,05) no peso de abate e melhoria na conversão alimentar. Houve efeito quadrático no consumo de matéria seca e de matéria orgânica, com máximos estimados em 35,29% e 35,36% de concentrado, respectivamente. Todas as margens brutas de lucro estimadas foram positivas. Não houve diferença (P > 0,05) entre os concentrados, porém o grupo genético Somalis x SRD mostrou-se superior (P < 0,05) ao Santa Inês x SRD.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraBarros, Nelson NogueiraVasconcelos, Vânia Rodrigues deAraújo, Marcelo Renato Alves deMartins, Espedito Cezário2003-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6679Pesquisa Agropecuaria Brasileira; v.38, n.9, set. 2003; 1111-1116Pesquisa Agropecuária Brasileira; v.38, n.9, set. 2003; 1111-11161678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6679/3736info:eu-repo/semantics/openAccess2014-08-11T19:31:32Zoai:ojs.seer.sct.embrapa.br:article/6679Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-08-11T19:31:32Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Influence of genetic group and feeding on performance of lambs in confinement
Influência do grupo genético e da alimentação sobre o desempenho de cordeiros em confinamento
title Influence of genetic group and feeding on performance of lambs in confinement
spellingShingle Influence of genetic group and feeding on performance of lambs in confinement
Barros, Nelson Nogueira
Leucaena leucocephala; hay; feed intake; feed conversion efficiency; weight gain; sheep
Leucaena leucocephala; feno; ingestão de alimento; eficácia alimentar; ganho de peso; ovino
title_short Influence of genetic group and feeding on performance of lambs in confinement
title_full Influence of genetic group and feeding on performance of lambs in confinement
title_fullStr Influence of genetic group and feeding on performance of lambs in confinement
title_full_unstemmed Influence of genetic group and feeding on performance of lambs in confinement
title_sort Influence of genetic group and feeding on performance of lambs in confinement
author Barros, Nelson Nogueira
author_facet Barros, Nelson Nogueira
Vasconcelos, Vânia Rodrigues de
Araújo, Marcelo Renato Alves de
Martins, Espedito Cezário
author_role author
author2 Vasconcelos, Vânia Rodrigues de
Araújo, Marcelo Renato Alves de
Martins, Espedito Cezário
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Barros, Nelson Nogueira
Vasconcelos, Vânia Rodrigues de
Araújo, Marcelo Renato Alves de
Martins, Espedito Cezário
dc.subject.por.fl_str_mv Leucaena leucocephala; hay; feed intake; feed conversion efficiency; weight gain; sheep
Leucaena leucocephala; feno; ingestão de alimento; eficácia alimentar; ganho de peso; ovino
topic Leucaena leucocephala; hay; feed intake; feed conversion efficiency; weight gain; sheep
Leucaena leucocephala; feno; ingestão de alimento; eficácia alimentar; ganho de peso; ovino
description The objective of this work was to establish the influence of breeding ram and feeding on performance of lambs in confinement. The experimental design was completely randomized, in a 2x4 factorial arrangement. The treatments were two genetic groups (Santa Inês x not defined breed (NDB) and Somalis x NDB) and concentrate (corn, soybean meal plus mineral salt) at 15%, 30%, 45% and 60%. Thirty two animals were confined in individual stalls and each was one repetition. The diets were composed by concentrate and roughage, leucaena hay (Leucaena leucocephala), as a complete ration. The slaughter weight increased and the feed efficiency improved (P < 0.05) as concentrate in diet was increased. A quadratic effect on dry matter intake and organic matter intake with maximum values of 35.29% and 35.36%, respectively, was observed. All estimated gross margin were positive. There was no difference (P > 0.05) among concentrates; however, the genetic group Somalis x NDB was superior (P < 0.05) to Santa Inês x NDB.
publishDate 2003
dc.date.none.fl_str_mv 2003-09-01
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/6679
url https://seer.sct.embrapa.br/index.php/pab/article/view/6679
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/6679/3736
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.38, n.9, set. 2003; 1111-1116
Pesquisa Agropecuária Brasileira; v.38, n.9, set. 2003; 1111-1116
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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