Pasture height at the beginning of deferment as a determinant of signal grass structure and potential selectivity by cattle
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , |
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. |
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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 |
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eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
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reponame:Repositório Institucional da UFS instname:Universidade Federal de Sergipe (UFS) instacron:UFS |
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