Twenty-five-centimeter pre-grazing canopy height in palisade grass and forage peanut

Detalhes bibliográficos
Autor(a) principal: Ferreira,Igor Machado
Data de Publicação: 2022
Outros Autores: Homem,Bruno Grossi Costa, Lima,Italo Braz Gonçalves de, Dubeux Junior,José Carlos Batista, Bernardes,Thiago Fernandes, Danés,Marina de Arruda Camargo, Casagrande,Daniel Rume
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162022000200401
Resumo: ABSTRACT: Short-term grazing behavior variables are sensitive to the canopy structure and have an impact on daily forage intake. This study evaluated the effect of pre- and post-grazing canopy heights on the forage harvesting process at a patch scale in a mixture of Brachiaria brizantha (Hochst. ex A. Rich.) Stapf. syn. Urochloa brizantha R.D. Webster cv. Marandu (palisade grass) and Arachis pintoi Krapov. & W.C. Greg. cv. Belomonte (forage peanut). Treatments were allocated to a split-plot arrangement in a completely randomized design. The plots, in their entirety, consisted of two pre-grazing canopy heights: 25 cm (CH25) and 35 cm (CH35); subplots consisted of three levels of defoliation severity: no defoliation (DS0); 20% depletion of pre-grazing canopy height (DS20); and 40% depletion of pre-grazing canopy height (DS40), with eight replications. Heifers were allowed to graze the patches (0.7 × 0.7 m) and their grazing behavior was recorded. Canopy structure measurements were taken both before and after grazing. Patches from CH35 presented greater stem mass for grass (p = 0.001) and legume (p = 0.002) than did patches from CH25. Bite rate, bite mass and instantaneous intake rate were greater for CH25 than for CH35 (p < 0.001, p = 0.068, and p = 0.074), and bite mass and instantaneous intake rate were lower for DS20 compared to DS0 (p = 0.032 and p = 0.016). Greater stem mass in the grazing strata negatively influenced the instantaneous intake rate.
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spelling Twenty-five-centimeter pre-grazing canopy height in palisade grass and forage peanutArachis pintoiBrachiariaUrochloaforage intakewarm-season legumeABSTRACT: Short-term grazing behavior variables are sensitive to the canopy structure and have an impact on daily forage intake. This study evaluated the effect of pre- and post-grazing canopy heights on the forage harvesting process at a patch scale in a mixture of Brachiaria brizantha (Hochst. ex A. Rich.) Stapf. syn. Urochloa brizantha R.D. Webster cv. Marandu (palisade grass) and Arachis pintoi Krapov. & W.C. Greg. cv. Belomonte (forage peanut). Treatments were allocated to a split-plot arrangement in a completely randomized design. The plots, in their entirety, consisted of two pre-grazing canopy heights: 25 cm (CH25) and 35 cm (CH35); subplots consisted of three levels of defoliation severity: no defoliation (DS0); 20% depletion of pre-grazing canopy height (DS20); and 40% depletion of pre-grazing canopy height (DS40), with eight replications. Heifers were allowed to graze the patches (0.7 × 0.7 m) and their grazing behavior was recorded. Canopy structure measurements were taken both before and after grazing. Patches from CH35 presented greater stem mass for grass (p = 0.001) and legume (p = 0.002) than did patches from CH25. Bite rate, bite mass and instantaneous intake rate were greater for CH25 than for CH35 (p < 0.001, p = 0.068, and p = 0.074), and bite mass and instantaneous intake rate were lower for DS20 compared to DS0 (p = 0.032 and p = 0.016). Greater stem mass in the grazing strata negatively influenced the instantaneous intake rate.Escola Superior de Agricultura "Luiz de Queiroz"2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162022000200401Scientia Agricola v.79 n.2 2022reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/1678-992x-2020-0090info:eu-repo/semantics/openAccessFerreira,Igor MachadoHomem,Bruno Grossi CostaLima,Italo Braz Gonçalves deDubeux Junior,José Carlos BatistaBernardes,Thiago FernandesDanés,Marina de Arruda CamargoCasagrande,Daniel Rumeeng2021-05-14T00:00:00Zoai:scielo:S0103-90162022000200401Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2021-05-14T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Twenty-five-centimeter pre-grazing canopy height in palisade grass and forage peanut
title Twenty-five-centimeter pre-grazing canopy height in palisade grass and forage peanut
spellingShingle Twenty-five-centimeter pre-grazing canopy height in palisade grass and forage peanut
Ferreira,Igor Machado
Arachis pintoi
Brachiaria
Urochloa
forage intake
warm-season legume
title_short Twenty-five-centimeter pre-grazing canopy height in palisade grass and forage peanut
title_full Twenty-five-centimeter pre-grazing canopy height in palisade grass and forage peanut
title_fullStr Twenty-five-centimeter pre-grazing canopy height in palisade grass and forage peanut
title_full_unstemmed Twenty-five-centimeter pre-grazing canopy height in palisade grass and forage peanut
title_sort Twenty-five-centimeter pre-grazing canopy height in palisade grass and forage peanut
author Ferreira,Igor Machado
author_facet Ferreira,Igor Machado
Homem,Bruno Grossi Costa
Lima,Italo Braz Gonçalves de
Dubeux Junior,José Carlos Batista
Bernardes,Thiago Fernandes
Danés,Marina de Arruda Camargo
Casagrande,Daniel Rume
author_role author
author2 Homem,Bruno Grossi Costa
Lima,Italo Braz Gonçalves de
Dubeux Junior,José Carlos Batista
Bernardes,Thiago Fernandes
Danés,Marina de Arruda Camargo
Casagrande,Daniel Rume
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Ferreira,Igor Machado
Homem,Bruno Grossi Costa
Lima,Italo Braz Gonçalves de
Dubeux Junior,José Carlos Batista
Bernardes,Thiago Fernandes
Danés,Marina de Arruda Camargo
Casagrande,Daniel Rume
dc.subject.por.fl_str_mv Arachis pintoi
Brachiaria
Urochloa
forage intake
warm-season legume
topic Arachis pintoi
Brachiaria
Urochloa
forage intake
warm-season legume
description ABSTRACT: Short-term grazing behavior variables are sensitive to the canopy structure and have an impact on daily forage intake. This study evaluated the effect of pre- and post-grazing canopy heights on the forage harvesting process at a patch scale in a mixture of Brachiaria brizantha (Hochst. ex A. Rich.) Stapf. syn. Urochloa brizantha R.D. Webster cv. Marandu (palisade grass) and Arachis pintoi Krapov. & W.C. Greg. cv. Belomonte (forage peanut). Treatments were allocated to a split-plot arrangement in a completely randomized design. The plots, in their entirety, consisted of two pre-grazing canopy heights: 25 cm (CH25) and 35 cm (CH35); subplots consisted of three levels of defoliation severity: no defoliation (DS0); 20% depletion of pre-grazing canopy height (DS20); and 40% depletion of pre-grazing canopy height (DS40), with eight replications. Heifers were allowed to graze the patches (0.7 × 0.7 m) and their grazing behavior was recorded. Canopy structure measurements were taken both before and after grazing. Patches from CH35 presented greater stem mass for grass (p = 0.001) and legume (p = 0.002) than did patches from CH25. Bite rate, bite mass and instantaneous intake rate were greater for CH25 than for CH35 (p < 0.001, p = 0.068, and p = 0.074), and bite mass and instantaneous intake rate were lower for DS20 compared to DS0 (p = 0.032 and p = 0.016). Greater stem mass in the grazing strata negatively influenced the instantaneous intake rate.
publishDate 2022
dc.date.none.fl_str_mv 2022-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162022000200401
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162022000200401
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1678-992x-2020-0090
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.79 n.2 2022
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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