Cynodon production and nutritive value at different harvesting ages through year seasons

Detalhes bibliográficos
Autor(a) principal: Gonçalves, Geane Dias
Data de Publicação: 2008
Outros Autores: Santos, Geraldo Tadeu dos, Cecato, Ulysses, Jobim, Clóves Cabreira, Damasceno, Júlio Cezar, Branco, Antônio Ferriani, Faria, Karla Peron
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta Scientiarum. Animal Sciences (Online)
Texto Completo: https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/2582
Resumo: The aim of this experiment was to estimate production, leaf/stem ratio and nutritive value (NV) of three Cynodon gender cultivars (Coastcross, Tifton 44 and Tifton 85), harvested at 21, 42 and 63 days, during spring and summer; 42, 63 and 84 days during fall; 63 and 84 days during winter. The experimental design was split splot, with three replications. Age harvest was evaluated by regression and the models were chosen based on identity analysis. Older harvest age increased (P < 0.05) dry matter (DM) production, neutral detergent fiber (NDF) and acid detergent fiber (ADF), for all seasons. Leaf/stem ratio (L/S), crude protein (CP), metabolizable energy (ME) estimated, dry matter in vitro digestibility (DMIVD) and organic matter in vitro digestibility (OMIVD) were negatively affected (p < 0.05). However, L/S and CP were not affected (P > 0.05) by increasing forage harvest age in winter. Independently of the season, all cultivars showed similar production and NV. Considering the results for chemical composition and ME estimated, older harvest ages (63 and 84 days) are not recommended, because there was a NV decrease for all cultivars, harvest ages between 21 and 42 days being thus recommended.
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spelling Cynodon production and nutritive value at different harvesting ages through year seasonsProdução e valor nutritivo de gramíneas do gênero Cynodon em diferentes idades ao corte durante o anocoastcrossdigestibilidade in vitroenergia metabolizávelrelação lâmina/colmoTifton5.04.00.00-2 ZootecniaThe aim of this experiment was to estimate production, leaf/stem ratio and nutritive value (NV) of three Cynodon gender cultivars (Coastcross, Tifton 44 and Tifton 85), harvested at 21, 42 and 63 days, during spring and summer; 42, 63 and 84 days during fall; 63 and 84 days during winter. The experimental design was split splot, with three replications. Age harvest was evaluated by regression and the models were chosen based on identity analysis. Older harvest age increased (P < 0.05) dry matter (DM) production, neutral detergent fiber (NDF) and acid detergent fiber (ADF), for all seasons. Leaf/stem ratio (L/S), crude protein (CP), metabolizable energy (ME) estimated, dry matter in vitro digestibility (DMIVD) and organic matter in vitro digestibility (OMIVD) were negatively affected (p < 0.05). However, L/S and CP were not affected (P > 0.05) by increasing forage harvest age in winter. Independently of the season, all cultivars showed similar production and NV. Considering the results for chemical composition and ME estimated, older harvest ages (63 and 84 days) are not recommended, because there was a NV decrease for all cultivars, harvest ages between 21 and 42 days being thus recommended.O experimento teve por objetivos estimar a produção de MS, relação lâmina/colmo e o valor nutritivo de três cultivares do gênero Cynodon (Coastcross, Tifton 44 e Tifton 85) colhidos com a idade de 21, 42 e 63 dias, na primavera e no verão, 42, 63 e 84 dias, no outono e 63 e 84 dias, no inverno. Utilizou-se o delineamento experimental de parcelas subdivididas (cultivares como parcelas e idade com sub-parcela) com três repetições. Para avaliar os efeitos da idade, foi realizada análise de regressão e os modelos foram escolhidos baseados em análise de identidade. Com o aumento da idade de colheita, houve aumento (P < 0,05) na produção de matéria seca (PMS) e nos teores de fibra em detergente neutro (FDN) e fibra em detergente ácido (FDA), nas quatro estações do ano. A relação lâmina/colmo (L/C), o teor de proteína bruta (PB), a energia metabolizável (EM) estimada e a digestibilidade in vitro da matéria seca (DIVMS) e da matéria orgânica (DIVMO) foram afetadas negativamente (P < 0,05) à medida em que aumentou-se a idade de colheita. Entretanto, a relação L/C e os teores de PB não foram afetados (P > 0,05) pela idade, no inverno. Os resultados mostram que a produção e o valor nutritivo dos três cultivares foram semelhantes ao longo do ano. Pelos dados obtidos em relação à composição química e estimativa de EM, a realização de cortes em idades avançadas (63 e 84 dias) não seria recomendada diante da diminuição do valor nutritivo da forragem dos três cultivares, sendo recomendados colheitas entre 21 e 42 dias.Editora da Universidade Estadual de Maringá2008-04-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/258210.4025/actascianimsci.v24i0.2582Acta Scientiarum. Animal Sciences; Vol 24 (2002); 1163-1174Acta Scientiarum. Animal Sciences; v. 24 (2002); 1163-11741807-86721806-2636reponame:Acta Scientiarum. Animal Sciences (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/2582/1761Gonçalves, Geane DiasSantos, Geraldo Tadeu dosCecato, UlyssesJobim, Clóves CabreiraDamasceno, Júlio CezarBranco, Antônio FerrianiFaria, Karla Peroninfo:eu-repo/semantics/openAccess2024-05-17T13:03:44Zoai:periodicos.uem.br/ojs:article/2582Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/oaiactaanim@uem.br||actaanim@uem.br|| rev.acta@gmail.com1807-86721806-2636opendoar:2024-05-17T13:03:44Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Cynodon production and nutritive value at different harvesting ages through year seasons
Produção e valor nutritivo de gramíneas do gênero Cynodon em diferentes idades ao corte durante o ano
title Cynodon production and nutritive value at different harvesting ages through year seasons
spellingShingle Cynodon production and nutritive value at different harvesting ages through year seasons
Gonçalves, Geane Dias
coastcross
digestibilidade in vitro
energia metabolizável
relação lâmina/colmo
Tifton
5.04.00.00-2 Zootecnia
title_short Cynodon production and nutritive value at different harvesting ages through year seasons
title_full Cynodon production and nutritive value at different harvesting ages through year seasons
title_fullStr Cynodon production and nutritive value at different harvesting ages through year seasons
title_full_unstemmed Cynodon production and nutritive value at different harvesting ages through year seasons
title_sort Cynodon production and nutritive value at different harvesting ages through year seasons
author Gonçalves, Geane Dias
author_facet Gonçalves, Geane Dias
Santos, Geraldo Tadeu dos
Cecato, Ulysses
Jobim, Clóves Cabreira
Damasceno, Júlio Cezar
Branco, Antônio Ferriani
Faria, Karla Peron
author_role author
author2 Santos, Geraldo Tadeu dos
Cecato, Ulysses
Jobim, Clóves Cabreira
Damasceno, Júlio Cezar
Branco, Antônio Ferriani
Faria, Karla Peron
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Gonçalves, Geane Dias
Santos, Geraldo Tadeu dos
Cecato, Ulysses
Jobim, Clóves Cabreira
Damasceno, Júlio Cezar
Branco, Antônio Ferriani
Faria, Karla Peron
dc.subject.por.fl_str_mv coastcross
digestibilidade in vitro
energia metabolizável
relação lâmina/colmo
Tifton
5.04.00.00-2 Zootecnia
topic coastcross
digestibilidade in vitro
energia metabolizável
relação lâmina/colmo
Tifton
5.04.00.00-2 Zootecnia
description The aim of this experiment was to estimate production, leaf/stem ratio and nutritive value (NV) of three Cynodon gender cultivars (Coastcross, Tifton 44 and Tifton 85), harvested at 21, 42 and 63 days, during spring and summer; 42, 63 and 84 days during fall; 63 and 84 days during winter. The experimental design was split splot, with three replications. Age harvest was evaluated by regression and the models were chosen based on identity analysis. Older harvest age increased (P < 0.05) dry matter (DM) production, neutral detergent fiber (NDF) and acid detergent fiber (ADF), for all seasons. Leaf/stem ratio (L/S), crude protein (CP), metabolizable energy (ME) estimated, dry matter in vitro digestibility (DMIVD) and organic matter in vitro digestibility (OMIVD) were negatively affected (p < 0.05). However, L/S and CP were not affected (P > 0.05) by increasing forage harvest age in winter. Independently of the season, all cultivars showed similar production and NV. Considering the results for chemical composition and ME estimated, older harvest ages (63 and 84 days) are not recommended, because there was a NV decrease for all cultivars, harvest ages between 21 and 42 days being thus recommended.
publishDate 2008
dc.date.none.fl_str_mv 2008-04-29
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://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/2582
10.4025/actascianimsci.v24i0.2582
url https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/2582
identifier_str_mv 10.4025/actascianimsci.v24i0.2582
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/2582/1761
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Editora da Universidade Estadual de Maringá
publisher.none.fl_str_mv Editora da Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Animal Sciences; Vol 24 (2002); 1163-1174
Acta Scientiarum. Animal Sciences; v. 24 (2002); 1163-1174
1807-8672
1806-2636
reponame:Acta Scientiarum. Animal Sciences (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum. Animal Sciences (Online)
collection Acta Scientiarum. Animal Sciences (Online)
repository.name.fl_str_mv Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv actaanim@uem.br||actaanim@uem.br|| rev.acta@gmail.com
_version_ 1799315358145839104

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