Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heights
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 co...
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Sociedade Brasileira de Zootecnia
2013-12-01
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doaj-d95c4d9f2090408286814a8c1b5adbb72020-11-24T23:33:43ZengSociedade Brasileira de ZootecniaRevista Brasileira de Zootecnia1806-92902013-12-01421285085610.1590/S1516-35982013001200003S1516-35982013001200003Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heightsRicardo Martins Araujo Pinho0Edson Mauro Santos1Gleidson Giordano Pinto de Carvalho2Ana Paula Gomes da Silva3Thiago Carvalho da Silva4Fleming Sena Campos5Carlos Henrique Oliveira Macedo6Universidade Federal da ParaíbaUniversidade Federal da ParaíbaUniversidade Federal da BahiaUniversidade Federal da ParaíbaUniversidade Federal de ViçosaUniversidade Federal da BahiaUniversidade Federal da ParaíbaThe 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001200003&lng=en&tlng=enCenchrus ciliarisenterobacterialactic acidmicrobiologysemiarid |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ricardo Martins Araujo Pinho Edson Mauro Santos Gleidson Giordano Pinto de Carvalho Ana Paula Gomes da Silva Thiago Carvalho da Silva Fleming Sena Campos Carlos Henrique Oliveira Macedo |
spellingShingle |
Ricardo Martins Araujo Pinho Edson Mauro Santos Gleidson Giordano Pinto de Carvalho Ana Paula Gomes da Silva Thiago Carvalho da Silva Fleming Sena Campos Carlos Henrique Oliveira Macedo Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heights Revista Brasileira de Zootecnia Cenchrus ciliaris enterobacteria lactic acid microbiology semiarid |
author_facet |
Ricardo Martins Araujo Pinho Edson Mauro Santos Gleidson Giordano Pinto de Carvalho Ana Paula Gomes da Silva Thiago Carvalho da Silva Fleming Sena Campos Carlos Henrique Oliveira Macedo |
author_sort |
Ricardo Martins Araujo Pinho |
title |
Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heights |
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 |
publisher |
Sociedade Brasileira de Zootecnia |
series |
Revista Brasileira de Zootecnia |
issn |
1806-9290 |
publishDate |
2013-12-01 |
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. |
topic |
Cenchrus ciliaris enterobacteria lactic acid microbiology semiarid |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001200003&lng=en&tlng=en |
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