Forage intake and animal performance in Urochloa humidicola cultivars under continuous stocking

Detalhes bibliográficos
Autor(a) principal: Martins, Clovis David Medeiros
Data de Publicação: 2013
Outros Autores: Euclides, Valéria Pacheco Batista, Barbosa, Rodrigo Amorim, Montagner, Denise Baptaglin, Miqueloto, Tiago
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/17678
Resumo: The objective of this work was to evaluate forage accumulation, canopy structure, nutritive value, forage intake, and animal production in pastures of Urochloa humidicola under continuous stocking. The cultivars BRS Tupi and Comum were evaluated during the drought and wet periods (July 2011 to August 2012), in a randomized complete block experimental design, with two treatments and six replicates. Monthly, the animals were weighted and the pastures sampled for the determination of: forage accumulation rate (FAR); forage mass; percentages of leaves (PL), culms, and dead material (DL); and nutritive value. Forage intake (FI) was determined once a period. 'BRS Tupi' had a higher FAR, PL, and DL than 'Comum', during the wet period. The nutritive value, FI and the daily weight gain were similar between both cultivars. Forage protein content – 6.0 and 5.0%, for the wet and drought periods, respectively – was the main limiting factor for FI. 'BRS Tupi' had higher stocking rates and, consequently, made possible a higher live weight gain per area (192 kg ha‑1 per year) than 'Comum' (126 kg ha‑1 per year). 'BRS Tupi' is a good alternative for diversification of pastures in soils with low fertility that are temporarily subjected to flooding.
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spelling Forage intake and animal performance in Urochloa humidicola cultivars under continuous stockingConsumo de forragem e desempenho animal em cultivares de Urochloa humidicola sob lotação contínuaBrachiaria humidicola; Urochloa humidicola; BRS Tupi; canopy structure; creeping signalgrass; stocking rateBrachiaria humidicola; Urochloa humidicola; BRS Tupi; estrutura do dossel; quicuio‑da‑Amazônia; taxa de lotaçãoThe objective of this work was to evaluate forage accumulation, canopy structure, nutritive value, forage intake, and animal production in pastures of Urochloa humidicola under continuous stocking. The cultivars BRS Tupi and Comum were evaluated during the drought and wet periods (July 2011 to August 2012), in a randomized complete block experimental design, with two treatments and six replicates. Monthly, the animals were weighted and the pastures sampled for the determination of: forage accumulation rate (FAR); forage mass; percentages of leaves (PL), culms, and dead material (DL); and nutritive value. Forage intake (FI) was determined once a period. 'BRS Tupi' had a higher FAR, PL, and DL than 'Comum', during the wet period. The nutritive value, FI and the daily weight gain were similar between both cultivars. Forage protein content – 6.0 and 5.0%, for the wet and drought periods, respectively – was the main limiting factor for FI. 'BRS Tupi' had higher stocking rates and, consequently, made possible a higher live weight gain per area (192 kg ha‑1 per year) than 'Comum' (126 kg ha‑1 per year). 'BRS Tupi' is a good alternative for diversification of pastures in soils with low fertility that are temporarily subjected to flooding.O objetivo deste trabalho foi avaliar o acúmulo de forragem, a estrutura do dossel, o valor nutritivo, o consumo de forragem e a produção animal, em pastos de Urochloa humidicola sob lotação contínua. As cultivares BRS Tupi e Comum foram avaliadas durante os períodos de seca e das águas (julho de 2011 a agosto de 2012), em delineamento experimental de blocos ao acaso, com dois tratamentos e seis repetições. Mensalmente, os animais foram pesados e os pastos amostrados para a determinação de: taxa de acúmulo de forragem (TAF); massa de forragem; percentagens de folha (PF), colmo e material morto (PM); e valor nutritivo. O consumo de matéria seca (CMS) foi determinado uma vez a cada período. 'BRS Tupi' apresentou maiores TAF e PF e menor PM do que a 'Comum', durante o período das águas. O valor nutritivo, o CMS e o ganho médio diário foram semelhantes entre as duas cultivares. O conteúdo de proteína bruta da forragem – 6,0 e 5,0%, respectivamente, para os períodos das águas e seco – foi o principal fator limitante ao CMS. 'BRS Tupi' recebeu maior taxa de lotação e, consequentemente, possibilitou maior ganho de peso vivo por área (192 kg ha‑1 por ano) do que a 'Comum' (126 kg ha‑1 por ano). A 'BRS Tupi' é uma boa alternativa para a diversificação de pastagens em solos de baixa fertilidade sujeitos a alagamento temporário.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraEMBRAPA, CNPQ, UNIPASTO, FUNDECTMartins, Clovis David MedeirosEuclides, Valéria Pacheco BatistaBarbosa, Rodrigo AmorimMontagner, Denise BaptaglinMiqueloto, Tiago2013-12-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/17678Pesquisa Agropecuaria Brasileira; v.48, n.10, out. 2013; 1402-1409Pesquisa Agropecuária Brasileira; v.48, n.10, out. 2013; 1402-14091678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/17678/12438https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/17678/10611info:eu-repo/semantics/openAccess2014-03-13T19:14:54Zoai:ojs.seer.sct.embrapa.br:article/17678Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-03-13T19:14:54Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Forage intake and animal performance in Urochloa humidicola cultivars under continuous stocking
Consumo de forragem e desempenho animal em cultivares de Urochloa humidicola sob lotação contínua
title Forage intake and animal performance in Urochloa humidicola cultivars under continuous stocking
spellingShingle Forage intake and animal performance in Urochloa humidicola cultivars under continuous stocking
Martins, Clovis David Medeiros
Brachiaria humidicola; Urochloa humidicola; BRS Tupi; canopy structure; creeping signalgrass; stocking rate
Brachiaria humidicola; Urochloa humidicola; BRS Tupi; estrutura do dossel; quicuio‑da‑Amazônia; taxa de lotação
title_short Forage intake and animal performance in Urochloa humidicola cultivars under continuous stocking
title_full Forage intake and animal performance in Urochloa humidicola cultivars under continuous stocking
title_fullStr Forage intake and animal performance in Urochloa humidicola cultivars under continuous stocking
title_full_unstemmed Forage intake and animal performance in Urochloa humidicola cultivars under continuous stocking
title_sort Forage intake and animal performance in Urochloa humidicola cultivars under continuous stocking
author Martins, Clovis David Medeiros
author_facet Martins, Clovis David Medeiros
Euclides, Valéria Pacheco Batista
Barbosa, Rodrigo Amorim
Montagner, Denise Baptaglin
Miqueloto, Tiago
author_role author
author2 Euclides, Valéria Pacheco Batista
Barbosa, Rodrigo Amorim
Montagner, Denise Baptaglin
Miqueloto, Tiago
author2_role author
author
author
author
dc.contributor.none.fl_str_mv
EMBRAPA, CNPQ, UNIPASTO, FUNDECT
dc.contributor.author.fl_str_mv Martins, Clovis David Medeiros
Euclides, Valéria Pacheco Batista
Barbosa, Rodrigo Amorim
Montagner, Denise Baptaglin
Miqueloto, Tiago
dc.subject.por.fl_str_mv Brachiaria humidicola; Urochloa humidicola; BRS Tupi; canopy structure; creeping signalgrass; stocking rate
Brachiaria humidicola; Urochloa humidicola; BRS Tupi; estrutura do dossel; quicuio‑da‑Amazônia; taxa de lotação
topic Brachiaria humidicola; Urochloa humidicola; BRS Tupi; canopy structure; creeping signalgrass; stocking rate
Brachiaria humidicola; Urochloa humidicola; BRS Tupi; estrutura do dossel; quicuio‑da‑Amazônia; taxa de lotação
description The objective of this work was to evaluate forage accumulation, canopy structure, nutritive value, forage intake, and animal production in pastures of Urochloa humidicola under continuous stocking. The cultivars BRS Tupi and Comum were evaluated during the drought and wet periods (July 2011 to August 2012), in a randomized complete block experimental design, with two treatments and six replicates. Monthly, the animals were weighted and the pastures sampled for the determination of: forage accumulation rate (FAR); forage mass; percentages of leaves (PL), culms, and dead material (DL); and nutritive value. Forage intake (FI) was determined once a period. 'BRS Tupi' had a higher FAR, PL, and DL than 'Comum', during the wet period. The nutritive value, FI and the daily weight gain were similar between both cultivars. Forage protein content – 6.0 and 5.0%, for the wet and drought periods, respectively – was the main limiting factor for FI. 'BRS Tupi' had higher stocking rates and, consequently, made possible a higher live weight gain per area (192 kg ha‑1 per year) than 'Comum' (126 kg ha‑1 per year). 'BRS Tupi' is a good alternative for diversification of pastures in soils with low fertility that are temporarily subjected to flooding.
publishDate 2013
dc.date.none.fl_str_mv 2013-12-20
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/17678
url https://seer.sct.embrapa.br/index.php/pab/article/view/17678
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/17678/12438
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/17678/10611
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.48, n.10, out. 2013; 1402-1409
Pesquisa Agropecuária Brasileira; v.48, n.10, out. 2013; 1402-1409
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
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instacron_str EMBRAPA
institution EMBRAPA
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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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