Evaluation of corn cultivars harvested at two cutting heights for ensilage

Detalhes bibliográficos
Autor(a) principal: Caetano,Hamilton
Data de Publicação: 2011
Outros Autores: Oliveira,Mauro Dal Secco de, Freitas Júnior,José Esler de, Rêgo,Aníbal Coutinho do, Rennó,Francisco Palma, Carvalho,Marina Vieira de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Zootecnia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000100003
Resumo: The objective of this study was to evaluate the agronomic characteristics, bromatological-chemical composition and digestibility of 11 corn cultivars (Zea mays) harvested at two cutting heights. Cultivars D 766, D 657, D 1000, P 3021, P 3041, C 805, C 333, AG 5011, FO 01, CO 9621 and BR 205 were evaluated when they were harvested 5 cm above ground (low) and 5 cm below the insertion of the first ear (high). The experiment was designed as random blocks, with three replicates, arranged in an 11 x 2 factorial scheme. Cultivars presented similar productions of forage dry matter and grains. Percentages of stalk, leaf, straw, cob and kernel fractions were different among cultivars, as well as dry matter content of the whole plant at harvest. Considering the whole plant, only the contents of gross energy, nitrogen in neutral detergent fiber, and in vitro neutral and acid detergent fiber digestibility did not differ among cultivars. Increase on the cutting height improved forage quality due to the reduction of stalk and leaf fractions and contents of cell wall constituents.
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spelling Evaluation of corn cultivars harvested at two cutting heights for ensilagedigestibilityneutral detergent fiberplant fractionsproductivityplant fractionswater soluble carbohydratesThe objective of this study was to evaluate the agronomic characteristics, bromatological-chemical composition and digestibility of 11 corn cultivars (Zea mays) harvested at two cutting heights. Cultivars D 766, D 657, D 1000, P 3021, P 3041, C 805, C 333, AG 5011, FO 01, CO 9621 and BR 205 were evaluated when they were harvested 5 cm above ground (low) and 5 cm below the insertion of the first ear (high). The experiment was designed as random blocks, with three replicates, arranged in an 11 x 2 factorial scheme. Cultivars presented similar productions of forage dry matter and grains. Percentages of stalk, leaf, straw, cob and kernel fractions were different among cultivars, as well as dry matter content of the whole plant at harvest. Considering the whole plant, only the contents of gross energy, nitrogen in neutral detergent fiber, and in vitro neutral and acid detergent fiber digestibility did not differ among cultivars. Increase on the cutting height improved forage quality due to the reduction of stalk and leaf fractions and contents of cell wall constituents.Sociedade Brasileira de Zootecnia2011-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000100003Revista Brasileira de Zootecnia v.40 n.1 2011reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/S1516-35982011000100003info:eu-repo/semantics/openAccessCaetano,HamiltonOliveira,Mauro Dal Secco deFreitas Júnior,José Esler deRêgo,Aníbal Coutinho doRennó,Francisco PalmaCarvalho,Marina Vieira deeng2011-01-26T00:00:00Zoai:scielo:S1516-35982011000100003Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2011-01-26T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false
dc.title.none.fl_str_mv Evaluation of corn cultivars harvested at two cutting heights for ensilage
title Evaluation of corn cultivars harvested at two cutting heights for ensilage
spellingShingle Evaluation of corn cultivars harvested at two cutting heights for ensilage
Caetano,Hamilton
digestibility
neutral detergent fiber
plant fractions
productivity
plant fractions
water soluble carbohydrates
title_short Evaluation of corn cultivars harvested at two cutting heights for ensilage
title_full Evaluation of corn cultivars harvested at two cutting heights for ensilage
title_fullStr Evaluation of corn cultivars harvested at two cutting heights for ensilage
title_full_unstemmed Evaluation of corn cultivars harvested at two cutting heights for ensilage
title_sort Evaluation of corn cultivars harvested at two cutting heights for ensilage
author Caetano,Hamilton
author_facet Caetano,Hamilton
Oliveira,Mauro Dal Secco de
Freitas Júnior,José Esler de
Rêgo,Aníbal Coutinho do
Rennó,Francisco Palma
Carvalho,Marina Vieira de
author_role author
author2 Oliveira,Mauro Dal Secco de
Freitas Júnior,José Esler de
Rêgo,Aníbal Coutinho do
Rennó,Francisco Palma
Carvalho,Marina Vieira de
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Caetano,Hamilton
Oliveira,Mauro Dal Secco de
Freitas Júnior,José Esler de
Rêgo,Aníbal Coutinho do
Rennó,Francisco Palma
Carvalho,Marina Vieira de
dc.subject.por.fl_str_mv digestibility
neutral detergent fiber
plant fractions
productivity
plant fractions
water soluble carbohydrates
topic digestibility
neutral detergent fiber
plant fractions
productivity
plant fractions
water soluble carbohydrates
description The objective of this study was to evaluate the agronomic characteristics, bromatological-chemical composition and digestibility of 11 corn cultivars (Zea mays) harvested at two cutting heights. Cultivars D 766, D 657, D 1000, P 3021, P 3041, C 805, C 333, AG 5011, FO 01, CO 9621 and BR 205 were evaluated when they were harvested 5 cm above ground (low) and 5 cm below the insertion of the first ear (high). The experiment was designed as random blocks, with three replicates, arranged in an 11 x 2 factorial scheme. Cultivars presented similar productions of forage dry matter and grains. Percentages of stalk, leaf, straw, cob and kernel fractions were different among cultivars, as well as dry matter content of the whole plant at harvest. Considering the whole plant, only the contents of gross energy, nitrogen in neutral detergent fiber, and in vitro neutral and acid detergent fiber digestibility did not differ among cultivars. Increase on the cutting height improved forage quality due to the reduction of stalk and leaf fractions and contents of cell wall constituents.
publishDate 2011
dc.date.none.fl_str_mv 2011-01-01
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=S1516-35982011000100003
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000100003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-35982011000100003
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 Sociedade Brasileira de Zootecnia
publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
dc.source.none.fl_str_mv Revista Brasileira de Zootecnia v.40 n.1 2011
reponame:Revista Brasileira de Zootecnia (Online)
instname:Sociedade Brasileira de Zootecnia (SBZ)
instacron:SBZ
instname_str Sociedade Brasileira de Zootecnia (SBZ)
instacron_str SBZ
institution SBZ
reponame_str Revista Brasileira de Zootecnia (Online)
collection Revista Brasileira de Zootecnia (Online)
repository.name.fl_str_mv Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)
repository.mail.fl_str_mv ||bz@sbz.org.br|| secretariarbz@sbz.org.br
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