Composição tecidual de capim-mulato II sob diferentes estruturas de dossel e seu impacto sob a digestibilidade

Detalhes bibliográficos
Autor(a) principal: Basso, Kelen Cristina
Data de Publicação: 2024
Outros Autores: Andrade, Jordana Lemos Andrade de, Assis, Daniel Ferreira de, Moreira, Ana Silvia Franco Pinheiro, Kuster, Vinicius Coelho, Barbero, Leando Martins, Ferreira, Isabel Cristina
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/44974
Resumo: Different heights of forage management modify the plant architecture, changing the proportion of young and mature tissues and its nutritional value. Thus, the objective of this study was to evaluate the tissue composition of leaves of hybrid Urochloa cv. Mulato II (syn. Brachiaria) kept under four management conditions simulating continuous grazing in the rainy and dry seasons. In addition, the effect of the variation of the percentage of tissues in the leaf on its digestibility was carried out based on the contents of crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF) and in vitro dry matter digestibility (IVDMD). Four stocking levels were evaluated simulating continuous grazing, with a canopy height of 10, 20, 30, and 40 cm. It was found that the pastures with 10 and 20 cm had the lowest percentage of lignified tissues in the rainy and dry seasons, which consequently resulted in greater tissue disappearance, mainly of the mesophyll. Pastures with 10 cm had higher CP contents, lower NDF and ADF contents, and consequently higher IVDMD. Therefore, the Mulato II grassland managed with 10 cm had greater degradability of the leaf tissues, due to the higher percentage of rapidly digestible tissues.
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spelling Composição tecidual de capim-mulato II sob diferentes estruturas de dossel e seu impacto sob a digestibilidade Composición tisular de pasto Mulato II bajo diferentes estructuras de dosel y su impacto en la digestibilidadThe tissue composition of Mulato II grass under different canopy structures and its impact on digestibility Anatomia foliarLotação contínuaPorcentagem de tecidosUrochloa híbrida.Leaf anatomyContinuous grazingDefoliation severityUrochloa hybrid.Anatomía de la hojaPastoreo continuoPorcentaje de tejidosUrochloa híbrida.Different heights of forage management modify the plant architecture, changing the proportion of young and mature tissues and its nutritional value. Thus, the objective of this study was to evaluate the tissue composition of leaves of hybrid Urochloa cv. Mulato II (syn. Brachiaria) kept under four management conditions simulating continuous grazing in the rainy and dry seasons. In addition, the effect of the variation of the percentage of tissues in the leaf on its digestibility was carried out based on the contents of crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF) and in vitro dry matter digestibility (IVDMD). Four stocking levels were evaluated simulating continuous grazing, with a canopy height of 10, 20, 30, and 40 cm. It was found that the pastures with 10 and 20 cm had the lowest percentage of lignified tissues in the rainy and dry seasons, which consequently resulted in greater tissue disappearance, mainly of the mesophyll. Pastures with 10 cm had higher CP contents, lower NDF and ADF contents, and consequently higher IVDMD. Therefore, the Mulato II grassland managed with 10 cm had greater degradability of the leaf tissues, due to the higher percentage of rapidly digestible tissues.Las diferentes alturas de manejo del forraje modifican la arquitectura de la planta, alterando la proporción de tejidos jóvenes y maduros y su valor nutricional. Por lo tanto, buscamos evaluar la composición tisular de hojas de Urochloa híbrido cv. Mulato II (sin. Brachiaria) mantenido bajo cuatro condiciones de manejo simulando pastoreo continuo en las estaciones lluviosa y seca. Además, se determinó el efecto de variar el porcentaje de tejidos de la hoja sobre su digestibilidad con base en los niveles de proteína cruda (PB), fibra insoluble en detergente neutro (FDN), fibra insoluble en detergente ácido (FDA) y digestibilidad in vitro de la materia seca. (IVDMS). Se evaluaron cuatro niveles de carga simulando pastoreo continuo, manteniendo alturas de dosel de 10, 20, 30 y 40 cm. Se encontró que los pastos de 10 y 20 cm tuvieron el menor porcentaje de tejidos lignificados en condiciones húmedas y secas, lo que en consecuencia resultó en una mayor desaparición de tejidos, principalmente del mesofilo. Los pastos con 10 cm tuvieron mayores contenidos de PB, menores contenidos de FDN y FDA y, en consecuencia, mayores IVDMS. Por lo tanto, se concluye que el pasto mulato II manejado a 10 cm presentó mayor degradabilidad de los tejidos foliares, debido al mayor porcentaje de tejidos de rápida digestión.Diferentes alturas de manejo da forragem modificam a arquitetura da planta, alterando a proporção dos tecidos jovens e maduros e o seu valor nutricional. Desta forma, objetivou-se avaliar a composição tecidual de folhas de Urochloa híbrida cv. Mulato II (syn. Brachiaria) mantida sob quatro condições de manejo simulando pastejo contínuo na época das águas e da seca. Além disso, avaliou-se o efeito da variação da porcentagem de tecidos na folha sob sua digestibilidade com base nos teores de proteína bruta (PB), de fibra em detergente neutro (FDN), de fibra em detergente ácido (FDA) e na digestibilidade in vitro da matéria seca (DIVMS). Foram avaliados quatro níveis de lotação simulando pastejo contínuo, com manutenção da altura do dossel 10, 20, 30 e 40 cm. Foi verificado que os pastos com 10 e 20 cm apresentaram a menor porcentagem de tecidos lignificados nas águas e secas, o que consequentemente resultou em maior desaparecimento de tecidos, principalmente do mesófilo. Pastos com 10 cm apresentaram maiores teores de PB, menores teores de FDN e FDA, e consequentemente maior DIVMS. Portanto, conclui-se que o capim-mulato II manejado com 10 cm apresentou maior degradabilidade dos tecidos foliares, em virtude da maior porcentagem de tecidos de rápida digestão.  Research, Society and Development2024-02-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/4497410.33448/rsd-v13i2.44974Research, Society and Development; Vol. 13 No. 2; e8613244974Research, Society and Development; Vol. 13 Núm. 2; e8613244974Research, Society and Development; v. 13 n. 2; e86132449742525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/44974/35969Copyright (c) 2024 Kelen Cristina Basso; Jordana Lemos Andrade de Andrade; Daniel Ferreira de Assis; Ana Silvia Franco Pinheiro Moreira; Vinicius Coelho Kuster; Leando Martins Barbero; Isabel Cristina Ferreirahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessBasso, Kelen Cristina Andrade, Jordana Lemos Andrade de Assis, Daniel Ferreira de Moreira, Ana Silvia Franco Pinheiro Kuster, Vinicius Coelho Barbero, Leando Martins Ferreira, Isabel Cristina2024-03-04T09:47:20Zoai:ojs.pkp.sfu.ca:article/44974Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-03-04T09:47:20Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Composição tecidual de capim-mulato II sob diferentes estruturas de dossel e seu impacto sob a digestibilidade
Composición tisular de pasto Mulato II bajo diferentes estructuras de dosel y su impacto en la digestibilidad
The tissue composition of Mulato II grass under different canopy structures and its impact on digestibility
title Composição tecidual de capim-mulato II sob diferentes estruturas de dossel e seu impacto sob a digestibilidade
spellingShingle Composição tecidual de capim-mulato II sob diferentes estruturas de dossel e seu impacto sob a digestibilidade
Basso, Kelen Cristina
Anatomia foliar
Lotação contínua
Porcentagem de tecidos
Urochloa híbrida.
Leaf anatomy
Continuous grazing
Defoliation severity
Urochloa hybrid.
Anatomía de la hoja
Pastoreo continuo
Porcentaje de tejidos
Urochloa híbrida.
title_short Composição tecidual de capim-mulato II sob diferentes estruturas de dossel e seu impacto sob a digestibilidade
title_full Composição tecidual de capim-mulato II sob diferentes estruturas de dossel e seu impacto sob a digestibilidade
title_fullStr Composição tecidual de capim-mulato II sob diferentes estruturas de dossel e seu impacto sob a digestibilidade
title_full_unstemmed Composição tecidual de capim-mulato II sob diferentes estruturas de dossel e seu impacto sob a digestibilidade
title_sort Composição tecidual de capim-mulato II sob diferentes estruturas de dossel e seu impacto sob a digestibilidade
author Basso, Kelen Cristina
author_facet Basso, Kelen Cristina
Andrade, Jordana Lemos Andrade de
Assis, Daniel Ferreira de
Moreira, Ana Silvia Franco Pinheiro
Kuster, Vinicius Coelho
Barbero, Leando Martins
Ferreira, Isabel Cristina
author_role author
author2 Andrade, Jordana Lemos Andrade de
Assis, Daniel Ferreira de
Moreira, Ana Silvia Franco Pinheiro
Kuster, Vinicius Coelho
Barbero, Leando Martins
Ferreira, Isabel Cristina
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Basso, Kelen Cristina
Andrade, Jordana Lemos Andrade de
Assis, Daniel Ferreira de
Moreira, Ana Silvia Franco Pinheiro
Kuster, Vinicius Coelho
Barbero, Leando Martins
Ferreira, Isabel Cristina
dc.subject.por.fl_str_mv Anatomia foliar
Lotação contínua
Porcentagem de tecidos
Urochloa híbrida.
Leaf anatomy
Continuous grazing
Defoliation severity
Urochloa hybrid.
Anatomía de la hoja
Pastoreo continuo
Porcentaje de tejidos
Urochloa híbrida.
topic Anatomia foliar
Lotação contínua
Porcentagem de tecidos
Urochloa híbrida.
Leaf anatomy
Continuous grazing
Defoliation severity
Urochloa hybrid.
Anatomía de la hoja
Pastoreo continuo
Porcentaje de tejidos
Urochloa híbrida.
description Different heights of forage management modify the plant architecture, changing the proportion of young and mature tissues and its nutritional value. Thus, the objective of this study was to evaluate the tissue composition of leaves of hybrid Urochloa cv. Mulato II (syn. Brachiaria) kept under four management conditions simulating continuous grazing in the rainy and dry seasons. In addition, the effect of the variation of the percentage of tissues in the leaf on its digestibility was carried out based on the contents of crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF) and in vitro dry matter digestibility (IVDMD). Four stocking levels were evaluated simulating continuous grazing, with a canopy height of 10, 20, 30, and 40 cm. It was found that the pastures with 10 and 20 cm had the lowest percentage of lignified tissues in the rainy and dry seasons, which consequently resulted in greater tissue disappearance, mainly of the mesophyll. Pastures with 10 cm had higher CP contents, lower NDF and ADF contents, and consequently higher IVDMD. Therefore, the Mulato II grassland managed with 10 cm had greater degradability of the leaf tissues, due to the higher percentage of rapidly digestible tissues.
publishDate 2024
dc.date.none.fl_str_mv 2024-02-20
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://rsdjournal.org/index.php/rsd/article/view/44974
10.33448/rsd-v13i2.44974
url https://rsdjournal.org/index.php/rsd/article/view/44974
identifier_str_mv 10.33448/rsd-v13i2.44974
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/44974/35969
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 13 No. 2; e8613244974
Research, Society and Development; Vol. 13 Núm. 2; e8613244974
Research, Society and Development; v. 13 n. 2; e8613244974
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
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