Chemical fractionation of carbohydrate and protein composition of corn silages fertilized with increasing doses of nitrogen

Detalhes bibliográficos
Autor(a) principal: Neumann,Mikael
Data de Publicação: 2017
Outros Autores: Nörnberg,José Laerte, Leão,Guilherme Fernando Mattos, Horst,Egon Henrique, Figueira,Danúbia Nogueira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Ciência Rural
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000500251
Resumo: ABSTRACT: The use of nitrogen fertilizers in corn crops for silage can improve both production and, theoretically, nutritional quality, especially carbohydrate and protein fractions, thereby optimizing animal production. Thus, the aim of this study was to evaluate the effect of increasing levels of nitrogen fertilization in carbohydrate and protein fractionation on the resulting corn silage (Zea mays L.). Nitrogen fertilization was carried out in the urea form (45-00-00) in V5 stage, at the following doses: T1: 0kg N ha-1; T2: 45kg N ha-1; T3: 90kg N ha-1; and T4: 135kg N ha-1. Crops were harvested at R4 stage and submitted to ensiling in experimental PVC silos. The chemical composition of the resulting silage was evaluated after silo opening. There was no statistical difference (P<0.05) in the average contents of gross protein (GP), as well as its C fraction, showing that increasing nitrogen doses in coverage linearly increased GP and linearly decreased its C fraction. For total carbohydrates, there was a linear decreasing behavior due to such consumption with the highest levels of nitrogen applied. Increased nitrogen fertilization dose in corn also linearly enhanced pH in the resulting silage. Therefore, nitrogen increases in coverage can alter carbohydrates and GP fractionation of corn silage, with increases in soluble fiber, GP, and pH, and reduction in the protein indigestible fraction.
id UFSM-2_979fad370b783410133c3db477671cfa
oai_identifier_str oai:scielo:S0103-84782017000500251
network_acronym_str UFSM-2
network_name_str Ciência rural (Online)
repository_id_str
spelling Chemical fractionation of carbohydrate and protein composition of corn silages fertilized with increasing doses of nitrogenstarchorganic acidsC fractionpHsolubilityABSTRACT: The use of nitrogen fertilizers in corn crops for silage can improve both production and, theoretically, nutritional quality, especially carbohydrate and protein fractions, thereby optimizing animal production. Thus, the aim of this study was to evaluate the effect of increasing levels of nitrogen fertilization in carbohydrate and protein fractionation on the resulting corn silage (Zea mays L.). Nitrogen fertilization was carried out in the urea form (45-00-00) in V5 stage, at the following doses: T1: 0kg N ha-1; T2: 45kg N ha-1; T3: 90kg N ha-1; and T4: 135kg N ha-1. Crops were harvested at R4 stage and submitted to ensiling in experimental PVC silos. The chemical composition of the resulting silage was evaluated after silo opening. There was no statistical difference (P<0.05) in the average contents of gross protein (GP), as well as its C fraction, showing that increasing nitrogen doses in coverage linearly increased GP and linearly decreased its C fraction. For total carbohydrates, there was a linear decreasing behavior due to such consumption with the highest levels of nitrogen applied. Increased nitrogen fertilization dose in corn also linearly enhanced pH in the resulting silage. Therefore, nitrogen increases in coverage can alter carbohydrates and GP fractionation of corn silage, with increases in soluble fiber, GP, and pH, and reduction in the protein indigestible fraction.Universidade Federal de Santa Maria2017-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000500251Ciência Rural v.47 n.5 2017reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/0103-8478cr20160270info:eu-repo/semantics/openAccessNeumann,MikaelNörnberg,José LaerteLeão,Guilherme Fernando MattosHorst,Egon HenriqueFigueira,Danúbia Nogueiraeng2017-03-21T00:00:00ZRevista
dc.title.none.fl_str_mv Chemical fractionation of carbohydrate and protein composition of corn silages fertilized with increasing doses of nitrogen
title Chemical fractionation of carbohydrate and protein composition of corn silages fertilized with increasing doses of nitrogen
spellingShingle Chemical fractionation of carbohydrate and protein composition of corn silages fertilized with increasing doses of nitrogen
Neumann,Mikael
starch
organic acids
C fraction
pH
solubility
title_short Chemical fractionation of carbohydrate and protein composition of corn silages fertilized with increasing doses of nitrogen
title_full Chemical fractionation of carbohydrate and protein composition of corn silages fertilized with increasing doses of nitrogen
title_fullStr Chemical fractionation of carbohydrate and protein composition of corn silages fertilized with increasing doses of nitrogen
title_full_unstemmed Chemical fractionation of carbohydrate and protein composition of corn silages fertilized with increasing doses of nitrogen
title_sort Chemical fractionation of carbohydrate and protein composition of corn silages fertilized with increasing doses of nitrogen
author Neumann,Mikael
author_facet Neumann,Mikael
Nörnberg,José Laerte
Leão,Guilherme Fernando Mattos
Horst,Egon Henrique
Figueira,Danúbia Nogueira
author_role author
author2 Nörnberg,José Laerte
Leão,Guilherme Fernando Mattos
Horst,Egon Henrique
Figueira,Danúbia Nogueira
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Neumann,Mikael
Nörnberg,José Laerte
Leão,Guilherme Fernando Mattos
Horst,Egon Henrique
Figueira,Danúbia Nogueira
dc.subject.por.fl_str_mv starch
organic acids
C fraction
pH
solubility
topic starch
organic acids
C fraction
pH
solubility
description ABSTRACT: The use of nitrogen fertilizers in corn crops for silage can improve both production and, theoretically, nutritional quality, especially carbohydrate and protein fractions, thereby optimizing animal production. Thus, the aim of this study was to evaluate the effect of increasing levels of nitrogen fertilization in carbohydrate and protein fractionation on the resulting corn silage (Zea mays L.). Nitrogen fertilization was carried out in the urea form (45-00-00) in V5 stage, at the following doses: T1: 0kg N ha-1; T2: 45kg N ha-1; T3: 90kg N ha-1; and T4: 135kg N ha-1. Crops were harvested at R4 stage and submitted to ensiling in experimental PVC silos. The chemical composition of the resulting silage was evaluated after silo opening. There was no statistical difference (P<0.05) in the average contents of gross protein (GP), as well as its C fraction, showing that increasing nitrogen doses in coverage linearly increased GP and linearly decreased its C fraction. For total carbohydrates, there was a linear decreasing behavior due to such consumption with the highest levels of nitrogen applied. Increased nitrogen fertilization dose in corn also linearly enhanced pH in the resulting silage. Therefore, nitrogen increases in coverage can alter carbohydrates and GP fractionation of corn silage, with increases in soluble fiber, GP, and pH, and reduction in the protein indigestible fraction.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-01
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=S0103-84782017000500251
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000500251
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0103-8478cr20160270
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 Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Ciência Rural v.47 n.5 2017
reponame:Ciência Rural
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Ciência Rural
collection Ciência Rural
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1749140551289012224