Sheep production during the rainy season in marandu palisadegrass swards previously utilized under deferred grazing

Detalhes bibliográficos
Autor(a) principal: Fonseca, D. M.
Data de Publicação: 2018
Outros Autores: Sousa, D. O. C., Santos, M. E. R., Macedo Junior, G. L., Silva, S. P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://dx.doi.org/10.1590/1678-4162-9414
http://www.locus.ufv.br/handle/123456789/25413
Resumo: The objective of this study was to evaluate the effects of Brachiaria brizantha cv. Marandu syn. Urochloa brizantha cv. Marandu (Marandu palisadegrass) in late winter on pasture structure, apparent selectivity, and sheep production during spring and early summer. The conditions of deferred pastures at the end of winter were: low (15.1cm and 4600kg/ha of DM), medium (23.2cm and 5940kg/ha of DM), high (31.4cm and 7640kg/ha of DM) and high/mowed (31.3cm and 7200kg/ha of DM, mowed to 8cm). The experiment was conducted in split plot design (sward conditions at the end of winter: low, medium, tall and tall/lowered) during time (early, middle and late spring/summer) and completely randomized design with three replications. The percentages of live leaf laminae in available forage and in simulated grazing samples were higher in tall/lowered sward and lower in high sward, oppositely to percentage of dead tissue. Only at the beginning of the grazing period the high/lowered sward had lower forage mass and bulk density. This remained high in high sward during all the grazing period. The sheep performance and the animal production per area were higher in low sward and lower in tall swards. The low sward has better structure and higher sheep production starting at spring. The lower of the marandu palisade grass at late winter improves this structure and increases sheep production during spring and early summer.
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spelling Sheep production during the rainy season in marandu palisadegrass swards previously utilized under deferred grazingAnimal selectivityBrachiaria brizantha synUrochloa brizanthaMowingSward structureBrachiaria brizantha synUrochloa brizanthaEstrutura do pastoRoçadaSeletividade animalThe objective of this study was to evaluate the effects of Brachiaria brizantha cv. Marandu syn. Urochloa brizantha cv. Marandu (Marandu palisadegrass) in late winter on pasture structure, apparent selectivity, and sheep production during spring and early summer. The conditions of deferred pastures at the end of winter were: low (15.1cm and 4600kg/ha of DM), medium (23.2cm and 5940kg/ha of DM), high (31.4cm and 7640kg/ha of DM) and high/mowed (31.3cm and 7200kg/ha of DM, mowed to 8cm). The experiment was conducted in split plot design (sward conditions at the end of winter: low, medium, tall and tall/lowered) during time (early, middle and late spring/summer) and completely randomized design with three replications. The percentages of live leaf laminae in available forage and in simulated grazing samples were higher in tall/lowered sward and lower in high sward, oppositely to percentage of dead tissue. Only at the beginning of the grazing period the high/lowered sward had lower forage mass and bulk density. This remained high in high sward during all the grazing period. The sheep performance and the animal production per area were higher in low sward and lower in tall swards. The low sward has better structure and higher sheep production starting at spring. The lower of the marandu palisade grass at late winter improves this structure and increases sheep production during spring and early summer.Objetivou-se avaliar os efeitos da condição do pasto diferido de Brachiaria brizantha cv. Marandu syn. Urochloa brizantha cv. Marandu (capim-marandu) no fim do inverno sobre a estrutura do pasto, a seletividade aparente e a produção de ovinos durante a primavera e o início do verão. As condições dos pastos diferidos no fim do inverno foram: baixo (15,1cm e 4.600kg/ha de MS), médio (23,2cm e 5.940kg/ha de MS), alto (31,4cm e 7.640kg/ha de MS) e alto/roçado (31,3cm e 7.200kg/ha de MS, rebaixado para 8cm). O experimento foi conduzido em esquema de parcela (condições dos pastos ao fim do inverno: baixo, médio, alto e alto/roçado) subdividida no tempo (início, meio e fim da primavera/verão) e delineamento inteiramente ao acaso, com três repetições. Os percentuais de lâmina foliar viva na forragem disponível e na amostra de simulação de pastejo foram maiores no pasto alto/roçado e menores no pasto alto, contrariamente ao percentual de tecido morto. Apenas no início do período de pastejo, o pasto alto/roçado apresentou menores massa e densidade volumétrica de forragem. Esta se manteve alta no pasto alto durante todo o período de pastejo. No início do período de pastejo, os pastos apresentaram pior composição morfológica na FD. O desempenho dos ovinos e a produção animal por área foram maiores no pasto baixo e menores no pasto alto. O pasto baixo, no fim do inverno, apresenta melhor estrutura e maior produção de ovinos a partir da primavera. A roçada do pasto de capim-marandu no fim do inverno melhora sua estrutura e aumenta a produção animal durante a primavera e o início do verão.Arquivo Brasileiro de Medicina Veterinária e Zootecnia2019-05-23T11:53:15Z2019-05-23T11:53:15Z2018-03info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlepdfapplication/pdf16784162http://dx.doi.org/10.1590/1678-4162-9414http://www.locus.ufv.br/handle/123456789/25413engv. 70, n. 02, p. 554- 562, mar./ abr. 2018Fonseca, D. M.Sousa, D. O. C.Santos, M. E. R.Macedo Junior, G. L.Silva, S. P.info:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFV2024-07-12T07:56:33Zoai:locus.ufv.br:123456789/25413Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452024-07-12T07:56:33LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.none.fl_str_mv Sheep production during the rainy season in marandu palisadegrass swards previously utilized under deferred grazing
title Sheep production during the rainy season in marandu palisadegrass swards previously utilized under deferred grazing
spellingShingle Sheep production during the rainy season in marandu palisadegrass swards previously utilized under deferred grazing
Fonseca, D. M.
Animal selectivity
Brachiaria brizantha syn
Urochloa brizantha
Mowing
Sward structure
Brachiaria brizantha syn
Urochloa brizantha
Estrutura do pasto
Roçada
Seletividade animal
title_short Sheep production during the rainy season in marandu palisadegrass swards previously utilized under deferred grazing
title_full Sheep production during the rainy season in marandu palisadegrass swards previously utilized under deferred grazing
title_fullStr Sheep production during the rainy season in marandu palisadegrass swards previously utilized under deferred grazing
title_full_unstemmed Sheep production during the rainy season in marandu palisadegrass swards previously utilized under deferred grazing
title_sort Sheep production during the rainy season in marandu palisadegrass swards previously utilized under deferred grazing
author Fonseca, D. M.
author_facet Fonseca, D. M.
Sousa, D. O. C.
Santos, M. E. R.
Macedo Junior, G. L.
Silva, S. P.
author_role author
author2 Sousa, D. O. C.
Santos, M. E. R.
Macedo Junior, G. L.
Silva, S. P.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Fonseca, D. M.
Sousa, D. O. C.
Santos, M. E. R.
Macedo Junior, G. L.
Silva, S. P.
dc.subject.por.fl_str_mv Animal selectivity
Brachiaria brizantha syn
Urochloa brizantha
Mowing
Sward structure
Brachiaria brizantha syn
Urochloa brizantha
Estrutura do pasto
Roçada
Seletividade animal
topic Animal selectivity
Brachiaria brizantha syn
Urochloa brizantha
Mowing
Sward structure
Brachiaria brizantha syn
Urochloa brizantha
Estrutura do pasto
Roçada
Seletividade animal
description The objective of this study was to evaluate the effects of Brachiaria brizantha cv. Marandu syn. Urochloa brizantha cv. Marandu (Marandu palisadegrass) in late winter on pasture structure, apparent selectivity, and sheep production during spring and early summer. The conditions of deferred pastures at the end of winter were: low (15.1cm and 4600kg/ha of DM), medium (23.2cm and 5940kg/ha of DM), high (31.4cm and 7640kg/ha of DM) and high/mowed (31.3cm and 7200kg/ha of DM, mowed to 8cm). The experiment was conducted in split plot design (sward conditions at the end of winter: low, medium, tall and tall/lowered) during time (early, middle and late spring/summer) and completely randomized design with three replications. The percentages of live leaf laminae in available forage and in simulated grazing samples were higher in tall/lowered sward and lower in high sward, oppositely to percentage of dead tissue. Only at the beginning of the grazing period the high/lowered sward had lower forage mass and bulk density. This remained high in high sward during all the grazing period. The sheep performance and the animal production per area were higher in low sward and lower in tall swards. The low sward has better structure and higher sheep production starting at spring. The lower of the marandu palisade grass at late winter improves this structure and increases sheep production during spring and early summer.
publishDate 2018
dc.date.none.fl_str_mv 2018-03
2019-05-23T11:53:15Z
2019-05-23T11:53:15Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv 16784162
http://dx.doi.org/10.1590/1678-4162-9414
http://www.locus.ufv.br/handle/123456789/25413
identifier_str_mv 16784162
url http://dx.doi.org/10.1590/1678-4162-9414
http://www.locus.ufv.br/handle/123456789/25413
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv v. 70, n. 02, p. 554- 562, mar./ abr. 2018
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv pdf
application/pdf
dc.publisher.none.fl_str_mv Arquivo Brasileiro de Medicina Veterinária e Zootecnia
publisher.none.fl_str_mv Arquivo Brasileiro de Medicina Veterinária e Zootecnia
dc.source.none.fl_str_mv reponame:LOCUS Repositório Institucional da UFV
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str LOCUS Repositório Institucional da UFV
collection LOCUS Repositório Institucional da UFV
repository.name.fl_str_mv LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)
repository.mail.fl_str_mv fabiojreis@ufv.br
_version_ 1817559973981323264

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