Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heights
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , |
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=S1516-35982013001200003 |
Resumo: | The present study evaluated the microbial population, fermentation profile, losses and dry matter recovery, and chemical composition of silages of buffel grass at different cutting heights. To evaluate the microbial fermentation dynamics, the treatments resulted from a 4 × 5 factorial combination consisting of 4 cutting heights and 5 fermentation periods, in a completely randomized design with three replications. The fermentation was evaluated at the end of 1, 3, 7, 15 and 30 days. The other characteristics of silages with 30 days were evaluated following a completely randomized design with four treatments, consisting of 4 cutting heights (30, 40, 50 and 60 cm), and five replications. Fermentation period and cutting height effects and interaction between both factors were observed on the populations of lactic acid bacteria (LAB), enterobacteria and molds and yeasts. The peak of development of LAB populations was observed on the seventh day of fermentation for the heights of 40 and 50 cm, with 8.25 and 8.30 log cfu/g, respectively. The pH values of silages ranged with different cutting heights, in which at the height of 50 cm the decrease was most pronounced. However, the pH values were similar between the cutting heights at the end of 30 days of fermentation. Quadratic relationship was observed between lactic acid concentrations and cutting heights. The crude protein content behaved linearly, initially showing 128.5 g/kg DM at 30 cm, decreasing as the cutting heights increased. The neutral detergent fiber and ether extract contents increased linearly with the cutting heights. Based on microbial populations, fermentation, losses and chemical composition, it is recommended to harvest buffel grass for silage from 50 cm on. |
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Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heightsCenchrus ciliarisenterobacterialactic acidmicrobiologysemiaridThe present study evaluated the microbial population, fermentation profile, losses and dry matter recovery, and chemical composition of silages of buffel grass at different cutting heights. To evaluate the microbial fermentation dynamics, the treatments resulted from a 4 × 5 factorial combination consisting of 4 cutting heights and 5 fermentation periods, in a completely randomized design with three replications. The fermentation was evaluated at the end of 1, 3, 7, 15 and 30 days. The other characteristics of silages with 30 days were evaluated following a completely randomized design with four treatments, consisting of 4 cutting heights (30, 40, 50 and 60 cm), and five replications. Fermentation period and cutting height effects and interaction between both factors were observed on the populations of lactic acid bacteria (LAB), enterobacteria and molds and yeasts. The peak of development of LAB populations was observed on the seventh day of fermentation for the heights of 40 and 50 cm, with 8.25 and 8.30 log cfu/g, respectively. The pH values of silages ranged with different cutting heights, in which at the height of 50 cm the decrease was most pronounced. However, the pH values were similar between the cutting heights at the end of 30 days of fermentation. Quadratic relationship was observed between lactic acid concentrations and cutting heights. The crude protein content behaved linearly, initially showing 128.5 g/kg DM at 30 cm, decreasing as the cutting heights increased. The neutral detergent fiber and ether extract contents increased linearly with the cutting heights. Based on microbial populations, fermentation, losses and chemical composition, it is recommended to harvest buffel grass for silage from 50 cm on.Sociedade Brasileira de Zootecnia2013-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001200003Revista Brasileira de Zootecnia v.42 n.12 2013reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/S1516-35982013001200003info:eu-repo/semantics/openAccessPinho,Ricardo Martins AraujoSantos,Edson MauroCarvalho,Gleidson Giordano Pinto deSilva,Ana Paula Gomes daSilva,Thiago Carvalho daCampos,Fleming SenaMacedo,Carlos Henrique Oliveiraeng2013-12-11T00:00:00Zoai:scielo:S1516-35982013001200003Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2013-12-11T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false |
dc.title.none.fl_str_mv |
Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heights |
title |
Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heights |
spellingShingle |
Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heights Pinho,Ricardo Martins Araujo Cenchrus ciliaris enterobacteria lactic acid microbiology semiarid |
title_short |
Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heights |
title_full |
Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heights |
title_fullStr |
Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heights |
title_full_unstemmed |
Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heights |
title_sort |
Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heights |
author |
Pinho,Ricardo Martins Araujo |
author_facet |
Pinho,Ricardo Martins Araujo Santos,Edson Mauro Carvalho,Gleidson Giordano Pinto de Silva,Ana Paula Gomes da Silva,Thiago Carvalho da Campos,Fleming Sena Macedo,Carlos Henrique Oliveira |
author_role |
author |
author2 |
Santos,Edson Mauro Carvalho,Gleidson Giordano Pinto de Silva,Ana Paula Gomes da Silva,Thiago Carvalho da Campos,Fleming Sena Macedo,Carlos Henrique Oliveira |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Pinho,Ricardo Martins Araujo Santos,Edson Mauro Carvalho,Gleidson Giordano Pinto de Silva,Ana Paula Gomes da Silva,Thiago Carvalho da Campos,Fleming Sena Macedo,Carlos Henrique Oliveira |
dc.subject.por.fl_str_mv |
Cenchrus ciliaris enterobacteria lactic acid microbiology semiarid |
topic |
Cenchrus ciliaris enterobacteria lactic acid microbiology semiarid |
description |
The present study evaluated the microbial population, fermentation profile, losses and dry matter recovery, and chemical composition of silages of buffel grass at different cutting heights. To evaluate the microbial fermentation dynamics, the treatments resulted from a 4 × 5 factorial combination consisting of 4 cutting heights and 5 fermentation periods, in a completely randomized design with three replications. The fermentation was evaluated at the end of 1, 3, 7, 15 and 30 days. The other characteristics of silages with 30 days were evaluated following a completely randomized design with four treatments, consisting of 4 cutting heights (30, 40, 50 and 60 cm), and five replications. Fermentation period and cutting height effects and interaction between both factors were observed on the populations of lactic acid bacteria (LAB), enterobacteria and molds and yeasts. The peak of development of LAB populations was observed on the seventh day of fermentation for the heights of 40 and 50 cm, with 8.25 and 8.30 log cfu/g, respectively. The pH values of silages ranged with different cutting heights, in which at the height of 50 cm the decrease was most pronounced. However, the pH values were similar between the cutting heights at the end of 30 days of fermentation. Quadratic relationship was observed between lactic acid concentrations and cutting heights. The crude protein content behaved linearly, initially showing 128.5 g/kg DM at 30 cm, decreasing as the cutting heights increased. The neutral detergent fiber and ether extract contents increased linearly with the cutting heights. Based on microbial populations, fermentation, losses and chemical composition, it is recommended to harvest buffel grass for silage from 50 cm on. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-12-01 |
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=S1516-35982013001200003 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001200003 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-35982013001200003 |
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.42 n.12 2013 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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1750318150934593536 |