Pasture height at the beginning of deferment as a determinant of signal grass structure and potential selectivity by cattle

Detalhes bibliográficos
Autor(a) principal: Santos, Manoel Eduardo Rozalino
Data de Publicação: 2013
Outros Autores: Silveira, Márcia Cristina Teixeira, Gomes, Virgílio Mesquita, Fonseca, Dilermando Miranda da, Sousa, Braulio Maia de Lana, Santos, Anselmo de Deus
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFS
Texto Completo: https://ri.ufs.br/handle/riufs/1650
Resumo: Current experiment identified the height of signal grass {Urochloa decumbens (Stapf) R. D. Webster cv. Basilisk [syn. Brachiaria decumbens Stapf cv. Basilisk]} at the beginning of deferment that provided an appropriate pasture structure and potential selectivity by cattle on deferred pastures. Four pasture heights at the beginning of deferment (10, 20, 30 and 40 cm) and two forage samples (available on pasture and simulated grazing) were studied. The experimental design was set in completely randomized blocks, with two replications, in a split-plot arrangement. Higher percentage of live leaf blades and lower percentage of live stems and senescent forage were recorded in the forage sample from simulated grazing. The increase in pasture height increased the percentage of senescent forage and reduced the percentage of live leaf blades in forage samples. Pasture height at the beginning of deferment did not affect the potential selectivity index by cattle for the percentage of live leaf blade. The potential selectivity index varied quadratically for the percentage of live stems and increased linearly for the percentage of senescent forage with pasture height. A 10-to-20 cm reduction in pasture height at the beginning of deferment improved the structure of deferred signal grass and optimized selectivity by cattle._________________________________________________________________________________________ RESUMO: Objetivou-se identificar a altura do capim-braquiarinha {Urochloa decumbens (Stapf) R. D. Webster cv. Basilisk [syn. Brachiaria decumbens Stapf cv. Basilisk]} no início do diferimento que possibilite adequada estrutura de pasto e seletividade potencial dos bovinos em pastagens diferidas. Foram estudadas quatro alturas do pasto no início do diferimento (10, 20, 30 e 40 cm) e duas amostras de forragem (disponível na pastagem e de pastejo simulado). O delineamento experimental foi em blocos completos casualizado com duas repetições, em esquema de parcela subdividida. Foi registrada maior porcentagem de lâmina foliar viva e menor de colmo vivo e forragem senescente na amostra de forragem em pastejo simulado. O incremento na altura do pasto aumentou o porcentual de forragem senescente e reduziu a porcentagem de lâmina foliar viva nas amostras de forragem. A altura do pasto no início do diferimento não influenciou o índice de seletividade potencial de bovinos para a porcentagem de lâmina foliar viva. O índice de seletividade potencial variou quadraticamente para a porcentagem de colmo vivo e aumentou linearmente para a porcentagem de forragem senescente com a altura do pasto. A redução da altura do pasto para 10 a 20 cm no início do diferimento melhora a estrutura do capim-braquiária diferido e otimiza a seletividade dos bovinos.
id UFS-2_f53c3a65dbf076228c13d18347b6c677
oai_identifier_str oai:ufs.br:riufs/1650
network_acronym_str UFS-2
network_name_str Repositório Institucional da UFS
repository_id_str
spelling Santos, Manoel Eduardo RozalinoSilveira, Márcia Cristina TeixeiraGomes, Virgílio MesquitaFonseca, Dilermando Miranda daSousa, Braulio Maia de LanaSantos, Anselmo de Deus2016-02-18T14:38:35Z2016-02-18T14:38:35Z2013-12SANTOS, M. E. R. et al. Pasture height at the beginning of deferment as a determinant of signal grass structure and potential selectivity by cattle. Acta Scientiarum. Animal Sciences, Maringá, v. 35, n. 4, out./dez. 2013. Disponível em: <http://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/20421>. Acesso em: 18 fev. 2016.1807-8672https://ri.ufs.br/handle/riufs/1650Creative Commons Attribution 3.0 LicenseCurrent experiment identified the height of signal grass {Urochloa decumbens (Stapf) R. D. Webster cv. Basilisk [syn. Brachiaria decumbens Stapf cv. Basilisk]} at the beginning of deferment that provided an appropriate pasture structure and potential selectivity by cattle on deferred pastures. Four pasture heights at the beginning of deferment (10, 20, 30 and 40 cm) and two forage samples (available on pasture and simulated grazing) were studied. The experimental design was set in completely randomized blocks, with two replications, in a split-plot arrangement. Higher percentage of live leaf blades and lower percentage of live stems and senescent forage were recorded in the forage sample from simulated grazing. The increase in pasture height increased the percentage of senescent forage and reduced the percentage of live leaf blades in forage samples. Pasture height at the beginning of deferment did not affect the potential selectivity index by cattle for the percentage of live leaf blade. The potential selectivity index varied quadratically for the percentage of live stems and increased linearly for the percentage of senescent forage with pasture height. A 10-to-20 cm reduction in pasture height at the beginning of deferment improved the structure of deferred signal grass and optimized selectivity by cattle._________________________________________________________________________________________ RESUMO: Objetivou-se identificar a altura do capim-braquiarinha {Urochloa decumbens (Stapf) R. D. Webster cv. Basilisk [syn. Brachiaria decumbens Stapf cv. Basilisk]} no início do diferimento que possibilite adequada estrutura de pasto e seletividade potencial dos bovinos em pastagens diferidas. Foram estudadas quatro alturas do pasto no início do diferimento (10, 20, 30 e 40 cm) e duas amostras de forragem (disponível na pastagem e de pastejo simulado). O delineamento experimental foi em blocos completos casualizado com duas repetições, em esquema de parcela subdividida. Foi registrada maior porcentagem de lâmina foliar viva e menor de colmo vivo e forragem senescente na amostra de forragem em pastejo simulado. O incremento na altura do pasto aumentou o porcentual de forragem senescente e reduziu a porcentagem de lâmina foliar viva nas amostras de forragem. A altura do pasto no início do diferimento não influenciou o índice de seletividade potencial de bovinos para a porcentagem de lâmina foliar viva. O índice de seletividade potencial variou quadraticamente para a porcentagem de colmo vivo e aumentou linearmente para a porcentagem de forragem senescente com a altura do pasto. A redução da altura do pasto para 10 a 20 cm no início do diferimento melhora a estrutura do capim-braquiária diferido e otimiza a seletividade dos bovinos.Universidade Estadual de MaringáBrachiaria decumbensStemLeafSenescent forageGrazingColmoFolhaForragem senescentePastejoBraquiáriaPasture height at the beginning of deferment as a determinant of signal grass structure and potential selectivity by cattleAltura do pasto no início do diferimento como determinante da estrutura do capim-braquiária e da seletividade potencial de bovinosinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFSinstname:Universidade Federal de Sergipe (UFS)instacron:UFSinfo:eu-repo/semantics/openAccessTHUMBNAILSignalGrassCattle.pdf.jpgSignalGrassCattle.pdf.jpgGenerated Thumbnailimage/jpeg1713https://ri.ufs.br/jspui/bitstream/riufs/1650/4/SignalGrassCattle.pdf.jpge6dddbe3525a72631e7dda1275138d8eMD54ORIGINALSignalGrassCattle.pdfSignalGrassCattle.pdfapplication/pdf158552https://ri.ufs.br/jspui/bitstream/riufs/1650/1/SignalGrassCattle.pdfcac37dde5c79cf413d4b771149237525MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://ri.ufs.br/jspui/bitstream/riufs/1650/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52TEXTSignalGrassCattle.pdf.txtSignalGrassCattle.pdf.txtExtracted texttext/plain33586https://ri.ufs.br/jspui/bitstream/riufs/1650/3/SignalGrassCattle.pdf.txt667c72f3f05545dc7263052f00e19994MD53riufs/16502016-03-02 18:58:04.09oai:ufs.br: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Repositório InstitucionalPUBhttps://ri.ufs.br/oai/requestrepositorio@academico.ufs.bropendoar:2016-03-02T21:58:04Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS)false
dc.title.pt_BR.fl_str_mv Pasture height at the beginning of deferment as a determinant of signal grass structure and potential selectivity by cattle
dc.title.alternative.pt_BR.fl_str_mv Altura do pasto no início do diferimento como determinante da estrutura do capim-braquiária e da seletividade potencial de bovinos
title Pasture height at the beginning of deferment as a determinant of signal grass structure and potential selectivity by cattle
spellingShingle Pasture height at the beginning of deferment as a determinant of signal grass structure and potential selectivity by cattle
Santos, Manoel Eduardo Rozalino
Brachiaria decumbens
Stem
Leaf
Senescent forage
Grazing
Colmo
Folha
Forragem senescente
Pastejo
Braquiária
title_short Pasture height at the beginning of deferment as a determinant of signal grass structure and potential selectivity by cattle
title_full Pasture height at the beginning of deferment as a determinant of signal grass structure and potential selectivity by cattle
title_fullStr Pasture height at the beginning of deferment as a determinant of signal grass structure and potential selectivity by cattle
title_full_unstemmed Pasture height at the beginning of deferment as a determinant of signal grass structure and potential selectivity by cattle
title_sort Pasture height at the beginning of deferment as a determinant of signal grass structure and potential selectivity by cattle
author Santos, Manoel Eduardo Rozalino
author_facet Santos, Manoel Eduardo Rozalino
Silveira, Márcia Cristina Teixeira
Gomes, Virgílio Mesquita
Fonseca, Dilermando Miranda da
Sousa, Braulio Maia de Lana
Santos, Anselmo de Deus
author_role author
author2 Silveira, Márcia Cristina Teixeira
Gomes, Virgílio Mesquita
Fonseca, Dilermando Miranda da
Sousa, Braulio Maia de Lana
Santos, Anselmo de Deus
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Santos, Manoel Eduardo Rozalino
Silveira, Márcia Cristina Teixeira
Gomes, Virgílio Mesquita
Fonseca, Dilermando Miranda da
Sousa, Braulio Maia de Lana
Santos, Anselmo de Deus
dc.subject.por.fl_str_mv Brachiaria decumbens
Stem
Leaf
Senescent forage
Grazing
Colmo
Folha
Forragem senescente
Pastejo
Braquiária
topic Brachiaria decumbens
Stem
Leaf
Senescent forage
Grazing
Colmo
Folha
Forragem senescente
Pastejo
Braquiária
description Current experiment identified the height of signal grass {Urochloa decumbens (Stapf) R. D. Webster cv. Basilisk [syn. Brachiaria decumbens Stapf cv. Basilisk]} at the beginning of deferment that provided an appropriate pasture structure and potential selectivity by cattle on deferred pastures. Four pasture heights at the beginning of deferment (10, 20, 30 and 40 cm) and two forage samples (available on pasture and simulated grazing) were studied. The experimental design was set in completely randomized blocks, with two replications, in a split-plot arrangement. Higher percentage of live leaf blades and lower percentage of live stems and senescent forage were recorded in the forage sample from simulated grazing. The increase in pasture height increased the percentage of senescent forage and reduced the percentage of live leaf blades in forage samples. Pasture height at the beginning of deferment did not affect the potential selectivity index by cattle for the percentage of live leaf blade. The potential selectivity index varied quadratically for the percentage of live stems and increased linearly for the percentage of senescent forage with pasture height. A 10-to-20 cm reduction in pasture height at the beginning of deferment improved the structure of deferred signal grass and optimized selectivity by cattle._________________________________________________________________________________________ RESUMO: Objetivou-se identificar a altura do capim-braquiarinha {Urochloa decumbens (Stapf) R. D. Webster cv. Basilisk [syn. Brachiaria decumbens Stapf cv. Basilisk]} no início do diferimento que possibilite adequada estrutura de pasto e seletividade potencial dos bovinos em pastagens diferidas. Foram estudadas quatro alturas do pasto no início do diferimento (10, 20, 30 e 40 cm) e duas amostras de forragem (disponível na pastagem e de pastejo simulado). O delineamento experimental foi em blocos completos casualizado com duas repetições, em esquema de parcela subdividida. Foi registrada maior porcentagem de lâmina foliar viva e menor de colmo vivo e forragem senescente na amostra de forragem em pastejo simulado. O incremento na altura do pasto aumentou o porcentual de forragem senescente e reduziu a porcentagem de lâmina foliar viva nas amostras de forragem. A altura do pasto no início do diferimento não influenciou o índice de seletividade potencial de bovinos para a porcentagem de lâmina foliar viva. O índice de seletividade potencial variou quadraticamente para a porcentagem de colmo vivo e aumentou linearmente para a porcentagem de forragem senescente com a altura do pasto. A redução da altura do pasto para 10 a 20 cm no início do diferimento melhora a estrutura do capim-braquiária diferido e otimiza a seletividade dos bovinos.
publishDate 2013
dc.date.issued.fl_str_mv 2013-12
dc.date.accessioned.fl_str_mv 2016-02-18T14:38:35Z
dc.date.available.fl_str_mv 2016-02-18T14:38:35Z
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.citation.fl_str_mv SANTOS, M. E. R. et al. Pasture height at the beginning of deferment as a determinant of signal grass structure and potential selectivity by cattle. Acta Scientiarum. Animal Sciences, Maringá, v. 35, n. 4, out./dez. 2013. Disponível em: <http://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/20421>. Acesso em: 18 fev. 2016.
dc.identifier.uri.fl_str_mv https://ri.ufs.br/handle/riufs/1650
dc.identifier.issn.none.fl_str_mv 1807-8672
dc.identifier.license.pt_BR.fl_str_mv Creative Commons Attribution 3.0 License
identifier_str_mv SANTOS, M. E. R. et al. Pasture height at the beginning of deferment as a determinant of signal grass structure and potential selectivity by cattle. Acta Scientiarum. Animal Sciences, Maringá, v. 35, n. 4, out./dez. 2013. Disponível em: <http://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/20421>. Acesso em: 18 fev. 2016.
1807-8672
Creative Commons Attribution 3.0 License
url https://ri.ufs.br/handle/riufs/1650
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Universidade Estadual de Maringá
publisher.none.fl_str_mv Universidade Estadual de Maringá
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFS
instname:Universidade Federal de Sergipe (UFS)
instacron:UFS
instname_str Universidade Federal de Sergipe (UFS)
instacron_str UFS
institution UFS
reponame_str Repositório Institucional da UFS
collection Repositório Institucional da UFS
bitstream.url.fl_str_mv https://ri.ufs.br/jspui/bitstream/riufs/1650/4/SignalGrassCattle.pdf.jpg
https://ri.ufs.br/jspui/bitstream/riufs/1650/1/SignalGrassCattle.pdf
https://ri.ufs.br/jspui/bitstream/riufs/1650/2/license.txt
https://ri.ufs.br/jspui/bitstream/riufs/1650/3/SignalGrassCattle.pdf.txt
bitstream.checksum.fl_str_mv e6dddbe3525a72631e7dda1275138d8e
cac37dde5c79cf413d4b771149237525
8a4605be74aa9ea9d79846c1fba20a33
667c72f3f05545dc7263052f00e19994
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS)
repository.mail.fl_str_mv repositorio@academico.ufs.br
_version_ 1802110784136806400