Chemical composition of corn silage produced by scientific studies in Brazil - A meta-analysis
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25966 |
Resumo: | The objective of the present study was to perform a meta-analysis that compared the chemical composition of corn silage produced for different experimental purposes, i.e., by research groups that studied corn silage (SCS) or by research groups that only used corn silage (UCS) as a form of roughage. We analyzed 203 papers that were published between January 1994 and December 2014 and contained a total of 647 treatments and the analysis of 1701 silos. We found a significant difference (P < 0.0001) in the dry matter (DM) content of SCS silage (33.00%) and that of UCS silage (30.64%). The DM contents of neutral detergent fiber for the SCS and UCS silage were high (54.72 and 55.14% DM, respectively) but were not significantly different from one another (P = 0.5936), and the acid detergent fiber content of the UCS silage (31.04% DM) was higher than that of the SCS silage (29.65%, P = 0.0214), which indicated that the UCS silage was less digestible than the SCS silage. This was also corroborated (P = 0.0064) by the mean content of total digestible nutrients (64.18% DM) in the UCS silage, which likely results from the lower level of care taken when using standard silage production methods, compared to that taken by SCS researchers. Therefore, we concluded that the corn silage produced by research groups in Brazil are not analyzed in full and that, as a result, there is a paucity of important information, such as the content of organic acids. In addition, we also found that corn silage produced in Brazil contains a high level of neutral detergent fiber. |
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Chemical composition of corn silage produced by scientific studies in Brazil - A meta-analysisComposição bromatológica de silagens de milho produzidas em condições experimentais no Brasil - MetanáliseStarchCarbohydrateFiberRuminantConserved roughageZea mays.AmidoCarboidratoFibraRuminanteVolumoso conservadoZea mays.The objective of the present study was to perform a meta-analysis that compared the chemical composition of corn silage produced for different experimental purposes, i.e., by research groups that studied corn silage (SCS) or by research groups that only used corn silage (UCS) as a form of roughage. We analyzed 203 papers that were published between January 1994 and December 2014 and contained a total of 647 treatments and the analysis of 1701 silos. We found a significant difference (P < 0.0001) in the dry matter (DM) content of SCS silage (33.00%) and that of UCS silage (30.64%). The DM contents of neutral detergent fiber for the SCS and UCS silage were high (54.72 and 55.14% DM, respectively) but were not significantly different from one another (P = 0.5936), and the acid detergent fiber content of the UCS silage (31.04% DM) was higher than that of the SCS silage (29.65%, P = 0.0214), which indicated that the UCS silage was less digestible than the SCS silage. This was also corroborated (P = 0.0064) by the mean content of total digestible nutrients (64.18% DM) in the UCS silage, which likely results from the lower level of care taken when using standard silage production methods, compared to that taken by SCS researchers. Therefore, we concluded that the corn silage produced by research groups in Brazil are not analyzed in full and that, as a result, there is a paucity of important information, such as the content of organic acids. In addition, we also found that corn silage produced in Brazil contains a high level of neutral detergent fiber.Objetivou-se analisar metanaliticamente a composição bromatológica de silagens de milho, estudadas ou utilizadas em dietas para ruminantes, em condições experimentais brasileiras. Foram utilizados artigos publicados entre janeiro de 1994 e dezembro de 2014, totalizando 203 artigos científicos com 647 tratamentos, envolvendo a análise de 1.701 silos. Observou-se diferença (P < 0,0001) no teor de matéria seca (MS) encontrado nas silagens entre pesquisas que estudam especificamente silagem de milho (ESM, de 33,00% de MS), para as que utilizam silagem de milho como suporte em outras avaliações científicas USM, 30,64% de MS). Os teores de fibra em detergente neutro são elevados para ESM (54,72% da MS) e para USM (55,14% da MS), não havendo diferença (P = 0,5936). As USM apresentam valores maiores (P = 0,0214) de fibra em detergente ácido (FDA) (31,04% da MS), ou seja, fornecem volumoso de menor digestibilidade que as ESM. Este fato é também corroborado (P = 0,0064) pelo nível médio de nutrientes digestíveis totais (NDT) (64,18% da MS) nos estudos USM, pois geralmente não há o mesmo cuidado com as premissas básicas de produção de silagem, comparado com o grupo ESM cujas silagens apresentaram em média 29,65% de FDA e 66,79% de NDT. As silagens de milho de planta inteira produzidas em condições experimentais no Brasil não são analisadas por completo, faltam informações imprescindíveis como o teor de ácidos orgânicos. Além disso, apresentam alto teor de fibra em detergente neutro.UEL2017-03-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa histórica; Metanáliseapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2596610.5433/1679-0359.2017v38n1p503Semina: Ciências Agrárias; Vol. 38 No. 1 (2017); 503-512Semina: Ciências Agrárias; v. 38 n. 1 (2017); 503-5121679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25966/20576Copyright (c) 2017 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessZardin, Pagiel BernardiVelho, João PedroJobim, Clóves CabreiraAlessio, Dileta Regina MoroHaygert-Velho, Ione Maria PereiraConceição, Gabriel Menegazzi daAlmeida, Paulo Sérgio Gois2022-11-29T14:59:48Zoai:ojs.pkp.sfu.ca:article/25966Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-11-29T14:59:48Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Chemical composition of corn silage produced by scientific studies in Brazil - A meta-analysis Composição bromatológica de silagens de milho produzidas em condições experimentais no Brasil - Metanálise |
title |
Chemical composition of corn silage produced by scientific studies in Brazil - A meta-analysis |
spellingShingle |
Chemical composition of corn silage produced by scientific studies in Brazil - A meta-analysis Zardin, Pagiel Bernardi Starch Carbohydrate Fiber Ruminant Conserved roughage Zea mays. Amido Carboidrato Fibra Ruminante Volumoso conservado Zea mays. |
title_short |
Chemical composition of corn silage produced by scientific studies in Brazil - A meta-analysis |
title_full |
Chemical composition of corn silage produced by scientific studies in Brazil - A meta-analysis |
title_fullStr |
Chemical composition of corn silage produced by scientific studies in Brazil - A meta-analysis |
title_full_unstemmed |
Chemical composition of corn silage produced by scientific studies in Brazil - A meta-analysis |
title_sort |
Chemical composition of corn silage produced by scientific studies in Brazil - A meta-analysis |
author |
Zardin, Pagiel Bernardi |
author_facet |
Zardin, Pagiel Bernardi Velho, João Pedro Jobim, Clóves Cabreira Alessio, Dileta Regina Moro Haygert-Velho, Ione Maria Pereira Conceição, Gabriel Menegazzi da Almeida, Paulo Sérgio Gois |
author_role |
author |
author2 |
Velho, João Pedro Jobim, Clóves Cabreira Alessio, Dileta Regina Moro Haygert-Velho, Ione Maria Pereira Conceição, Gabriel Menegazzi da Almeida, Paulo Sérgio Gois |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Zardin, Pagiel Bernardi Velho, João Pedro Jobim, Clóves Cabreira Alessio, Dileta Regina Moro Haygert-Velho, Ione Maria Pereira Conceição, Gabriel Menegazzi da Almeida, Paulo Sérgio Gois |
dc.subject.por.fl_str_mv |
Starch Carbohydrate Fiber Ruminant Conserved roughage Zea mays. Amido Carboidrato Fibra Ruminante Volumoso conservado Zea mays. |
topic |
Starch Carbohydrate Fiber Ruminant Conserved roughage Zea mays. Amido Carboidrato Fibra Ruminante Volumoso conservado Zea mays. |
description |
The objective of the present study was to perform a meta-analysis that compared the chemical composition of corn silage produced for different experimental purposes, i.e., by research groups that studied corn silage (SCS) or by research groups that only used corn silage (UCS) as a form of roughage. We analyzed 203 papers that were published between January 1994 and December 2014 and contained a total of 647 treatments and the analysis of 1701 silos. We found a significant difference (P < 0.0001) in the dry matter (DM) content of SCS silage (33.00%) and that of UCS silage (30.64%). The DM contents of neutral detergent fiber for the SCS and UCS silage were high (54.72 and 55.14% DM, respectively) but were not significantly different from one another (P = 0.5936), and the acid detergent fiber content of the UCS silage (31.04% DM) was higher than that of the SCS silage (29.65%, P = 0.0214), which indicated that the UCS silage was less digestible than the SCS silage. This was also corroborated (P = 0.0064) by the mean content of total digestible nutrients (64.18% DM) in the UCS silage, which likely results from the lower level of care taken when using standard silage production methods, compared to that taken by SCS researchers. Therefore, we concluded that the corn silage produced by research groups in Brazil are not analyzed in full and that, as a result, there is a paucity of important information, such as the content of organic acids. In addition, we also found that corn silage produced in Brazil contains a high level of neutral detergent fiber. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-03-02 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa histórica; Metanálise |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25966 10.5433/1679-0359.2017v38n1p503 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25966 |
identifier_str_mv |
10.5433/1679-0359.2017v38n1p503 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/25966/20576 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
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. 38 No. 1 (2017); 503-512 Semina: Ciências Agrárias; v. 38 n. 1 (2017); 503-512 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 |
_version_ |
1799306075918303232 |