Dehydratation rate and chemical composition of stargrass (Cynodon nlemfuensis Vanderyst) hay as a function of nitrogen fertilization

Detalhes bibliográficos
Autor(a) principal: Calixto Júnior, Moysés
Data de Publicação: 2007
Outros Autores: Jobim, Clóves Cabreira, Canto, Marcos Weber do
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2992
Resumo: The objective of this study was to determine the dehydratation rate of after-harvest forage in the field conditions and to evaluate the chemical composition as a function of nitrogen fertilization. It was used two fertilization levels (50 and 100 kg/N/ha) and forage was harvest with 28 days growth. During field wilting, one sample at harvest time and seven others after it were collected to determine the dehydratation rate of the whole plant and the leaf and stem fractions. A completely randomized experimental design with ten replications was used, and the chemical composition data were compared by F Test (5%). The water loss rate was higher for leaf when compared to stem fraction, showing the same pattern for both fertilization levels. In chemical composition evaluations, crude protein (CP) was different (P0.05). In vitro dry matter digestibility (INDMD) and in vitro crude protein digestibility (INCPD) were not affected (P>0.05) by the levels of nitrogen fertilization. Nitrogen fertilization increased the CP concentration in Stargrass hay, but did not affect the fiber fraction, not increasing the nutritional quality of hay.
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spelling Dehydratation rate and chemical composition of stargrass (Cynodon nlemfuensis Vanderyst) hay as a function of nitrogen fertilizationTaxa de desidratação e composição químico-bromatológica do feno de grama-estrela (Cynodon nlemfuensis Vanderyst) em função de níveis de adubação nitrogenadaDigestibilityFiberForageProtein.DigestibilidadeFibraForragemProteína.The objective of this study was to determine the dehydratation rate of after-harvest forage in the field conditions and to evaluate the chemical composition as a function of nitrogen fertilization. It was used two fertilization levels (50 and 100 kg/N/ha) and forage was harvest with 28 days growth. During field wilting, one sample at harvest time and seven others after it were collected to determine the dehydratation rate of the whole plant and the leaf and stem fractions. A completely randomized experimental design with ten replications was used, and the chemical composition data were compared by F Test (5%). The water loss rate was higher for leaf when compared to stem fraction, showing the same pattern for both fertilization levels. In chemical composition evaluations, crude protein (CP) was different (P0.05). In vitro dry matter digestibility (INDMD) and in vitro crude protein digestibility (INCPD) were not affected (P>0.05) by the levels of nitrogen fertilization. Nitrogen fertilization increased the CP concentration in Stargrass hay, but did not affect the fiber fraction, not increasing the nutritional quality of hay.O objetivo do trabalho foi determinar a taxa de desidratação da forragem após o corte, em condições de campo e avaliar a composição química em função da adubação nitrogenada. Utilizou-se dois níveis de adubação (50 e 100 Kg/N/ha) com o corte realizado após 28 dias de crescimento. Durante o período de secagem a campo foram realizadas amostragens no momento do corte e mais outras sete após o corte, para determinar a taxa de desidratação da planta e das frações folha e colmo. O delineamento experimental foi inteiramente casualizado com dez repetições e os dados de composição química, comparados pelo teste F (5%). A velocidade de perda de água foi maior para a folha comparada ao colmo, mostrando o mesmo padrão para os dois níveis de adubação. Na avaliação da composição química, a PB diferiu (P0,05) para o nível de nitrogênio. Da mesma forma, para a DIVMS e DIVPB não houve efeito (P>0,05) entre os níveis de adubação nitrogenada. A adubação nitrogenada proporcionou aumento no teor de PB do feno de grama-estrela, porém não afetou os componentes da fibra, não resultando em aumento na qualidade nutricional do feno.UEL2007-08-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/299210.5433/1679-0359.2007v28n3p493Semina: Ciências Agrárias; Vol. 28 No. 3 (2007); 493-502Semina: Ciências Agrárias; v. 28 n. 3 (2007); 493-5021679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2992/2539Calixto Júnior, MoysésJobim, Clóves CabreiraCanto, Marcos Weber doinfo:eu-repo/semantics/openAccess2015-11-19T18:38:58Zoai:ojs.pkp.sfu.ca:article/2992Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2015-11-19T18:38:58Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Dehydratation rate and chemical composition of stargrass (Cynodon nlemfuensis Vanderyst) hay as a function of nitrogen fertilization
Taxa de desidratação e composição químico-bromatológica do feno de grama-estrela (Cynodon nlemfuensis Vanderyst) em função de níveis de adubação nitrogenada
title Dehydratation rate and chemical composition of stargrass (Cynodon nlemfuensis Vanderyst) hay as a function of nitrogen fertilization
spellingShingle Dehydratation rate and chemical composition of stargrass (Cynodon nlemfuensis Vanderyst) hay as a function of nitrogen fertilization
Calixto Júnior, Moysés
Digestibility
Fiber
Forage
Protein.
Digestibilidade
Fibra
Forragem
Proteína.
title_short Dehydratation rate and chemical composition of stargrass (Cynodon nlemfuensis Vanderyst) hay as a function of nitrogen fertilization
title_full Dehydratation rate and chemical composition of stargrass (Cynodon nlemfuensis Vanderyst) hay as a function of nitrogen fertilization
title_fullStr Dehydratation rate and chemical composition of stargrass (Cynodon nlemfuensis Vanderyst) hay as a function of nitrogen fertilization
title_full_unstemmed Dehydratation rate and chemical composition of stargrass (Cynodon nlemfuensis Vanderyst) hay as a function of nitrogen fertilization
title_sort Dehydratation rate and chemical composition of stargrass (Cynodon nlemfuensis Vanderyst) hay as a function of nitrogen fertilization
author Calixto Júnior, Moysés
author_facet Calixto Júnior, Moysés
Jobim, Clóves Cabreira
Canto, Marcos Weber do
author_role author
author2 Jobim, Clóves Cabreira
Canto, Marcos Weber do
author2_role author
author
dc.contributor.author.fl_str_mv Calixto Júnior, Moysés
Jobim, Clóves Cabreira
Canto, Marcos Weber do
dc.subject.por.fl_str_mv Digestibility
Fiber
Forage
Protein.
Digestibilidade
Fibra
Forragem
Proteína.
topic Digestibility
Fiber
Forage
Protein.
Digestibilidade
Fibra
Forragem
Proteína.
description The objective of this study was to determine the dehydratation rate of after-harvest forage in the field conditions and to evaluate the chemical composition as a function of nitrogen fertilization. It was used two fertilization levels (50 and 100 kg/N/ha) and forage was harvest with 28 days growth. During field wilting, one sample at harvest time and seven others after it were collected to determine the dehydratation rate of the whole plant and the leaf and stem fractions. A completely randomized experimental design with ten replications was used, and the chemical composition data were compared by F Test (5%). The water loss rate was higher for leaf when compared to stem fraction, showing the same pattern for both fertilization levels. In chemical composition evaluations, crude protein (CP) was different (P0.05). In vitro dry matter digestibility (INDMD) and in vitro crude protein digestibility (INCPD) were not affected (P>0.05) by the levels of nitrogen fertilization. Nitrogen fertilization increased the CP concentration in Stargrass hay, but did not affect the fiber fraction, not increasing the nutritional quality of hay.
publishDate 2007
dc.date.none.fl_str_mv 2007-08-30
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://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2992
10.5433/1679-0359.2007v28n3p493
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2992
identifier_str_mv 10.5433/1679-0359.2007v28n3p493
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2992/2539
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 UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 28 No. 3 (2007); 493-502
Semina: Ciências Agrárias; v. 28 n. 3 (2007); 493-502
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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