Effect of urea on gas and effluent losses, microbial populations, aerobic stability and chemical composition of corn (Zea mays L.) silage
We evaluated the effects of urea addition on gas and effluent losses, fermentation profile, microbial populations, aerobic stability and chemical composition of corn silages. A completely randomised design with five levels of urea (0, 0.5, 1.0, 1.5, and 2.0% based on dry matter) and five replicates...
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| Autores principales: | , , , , , , , , , |
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| Formato: | Online |
| Lenguaje: | eng |
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Facultad de Ciencias Agrarias-UNCuyo
2021
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| Acceso en línea: | https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/4185 |
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Revista de la Facultad de Ciencias Agrarias |
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Revista de la Facultad de Ciencias Agrarias |
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R-107 |
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eng |
| format |
Online |
| author |
dos Santos, Ana Paula Maia Santos, Edson Mauro Silva de Oliveira, Juliana Pinto de Carvalho, Gleidson Giordano Garcia Leal de Araújo, Gherman Moura Zanine, Anderson Martins Araújo Pinho, Ricardo Ferreira, Daniele de Jesus da Silva Macedo, Alberto Jefferson Pereira Alves, Joyce |
| spellingShingle |
dos Santos, Ana Paula Maia Santos, Edson Mauro Silva de Oliveira, Juliana Pinto de Carvalho, Gleidson Giordano Garcia Leal de Araújo, Gherman Moura Zanine, Anderson Martins Araújo Pinho, Ricardo Ferreira, Daniele de Jesus da Silva Macedo, Alberto Jefferson Pereira Alves, Joyce Effect of urea on gas and effluent losses, microbial populations, aerobic stability and chemical composition of corn (Zea mays L.) silage ácido láctico bacterias de ácido láctico aditivos de ensilaje levaduras Zea mays L. lactic acid lactic acid bacteria silage additives yeasts Zea mays L. |
| author_facet |
dos Santos, Ana Paula Maia Santos, Edson Mauro Silva de Oliveira, Juliana Pinto de Carvalho, Gleidson Giordano Garcia Leal de Araújo, Gherman Moura Zanine, Anderson Martins Araújo Pinho, Ricardo Ferreira, Daniele de Jesus da Silva Macedo, Alberto Jefferson Pereira Alves, Joyce |
| author_sort |
dos Santos, Ana Paula Maia |
| title |
Effect of urea on gas and effluent losses, microbial populations, aerobic stability and chemical composition of corn (Zea mays L.) silage |
| title_short |
Effect of urea on gas and effluent losses, microbial populations, aerobic stability and chemical composition of corn (Zea mays L.) silage |
| title_full |
Effect of urea on gas and effluent losses, microbial populations, aerobic stability and chemical composition of corn (Zea mays L.) silage |
| title_fullStr |
Effect of urea on gas and effluent losses, microbial populations, aerobic stability and chemical composition of corn (Zea mays L.) silage |
| title_full_unstemmed |
Effect of urea on gas and effluent losses, microbial populations, aerobic stability and chemical composition of corn (Zea mays L.) silage |
| title_sort |
effect of urea on gas and effluent losses, microbial populations, aerobic stability and chemical compositivo of corn (zea mays l.) silage |
| description |
We evaluated the effects of urea addition on gas and effluent losses, fermentation profile, microbial populations, aerobic stability and chemical composition of corn silages. A completely randomised design with five levels of urea (0, 0.5, 1.0, 1.5, and 2.0% based on dry matter) and five replicates was used. A decreasing linear effect of urea levels on effluent losses in corn silages was observed. In parallel, an increasing linear effect of urea levels on pH, increasing from 3.49 to 4.12 in silages without urea in relation to silages with the maximum urea level, was also observed. Urea addition improved the aerobic stability of the silages, with 62 h for the silages without urea and from 90 to >96 h for the silages with urea. Based on the results of the principal components, two groups (I and II) could be distinguished. The most discriminating variables in group I were dry matter (-0.9), pH (-1.2) and lactic acid bacteria (-0.9), while in group II, effluent losses (1.0), ethanol (1.0), acetic acid (0.8) and gas losses (0.8) were most important. The use of urea at inclusion levels of around 2% in corn silage reduced gas losses, improved the nutritive value and promote the aerobic stability of silages.
Highlights:
The addition of urea in the corn silages increased the pH values from 3.49 (control) to 4.12 (2% of urea DM).
The use of urea improved chemical composition of corn silages.
The addition of urea reduced the moulds and yeast populations in the corn silages after exposure to air.
Urea addition improved the aerobic stability of the corn silages.
|
| publisher |
Facultad de Ciencias Agrarias-UNCuyo |
| publishDate |
2021 |
| url |
https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/4185 |
| topic |
ácido láctico bacterias de ácido láctico aditivos de ensilaje levaduras Zea mays L. lactic acid lactic acid bacteria silage additives yeasts Zea mays L. |
| topic_facet |
ácido láctico bacterias de ácido láctico aditivos de ensilaje levaduras Zea mays L. lactic acid lactic acid bacteria silage additives yeasts Zea mays L. |
| work_keys_str_mv |
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| _version_ |
1800220927518048256 |
| spelling |
I11-R107article-41852021-07-07T00:39:14Z Effect of urea on gas and effluent losses, microbial populations, aerobic stability and chemical compositivo of corn (Zea mays L.) silage Effect of urea on gas and effluent losses, microbial populations, aerobic stability and chemical composition of corn (Zea mays L.) silage dos Santos, Ana Paula Maia Santos, Edson Mauro Silva de Oliveira, Juliana Pinto de Carvalho, Gleidson Giordano Garcia Leal de Araújo, Gherman Moura Zanine, Anderson Martins Araújo Pinho, Ricardo Ferreira, Daniele de Jesus da Silva Macedo, Alberto Jefferson Pereira Alves, Joyce ácido láctico bacterias de ácido láctico aditivos de ensilaje levaduras Zea mays L. lactic acid lactic acid bacteria silage additives yeasts Zea mays L. We evaluated the effects of urea addition on gas and effluent losses, fermentation profile, microbial populations, aerobic stability and chemical composition of corn silages. A completely randomised design with five levels of urea (0, 0.5, 1.0, 1.5, and 2.0% based on dry matter) and five replicates was used. A decreasing linear effect of urea levels on effluent losses in corn silages was observed. In parallel, an increasing linear effect of urea levels on pH, increasing from 3.49 to 4.12 in silages without urea in relation to silages with the maximum urea level, was also observed. Urea addition improved the aerobic stability of the silages, with 62 h for the silages without urea and from 90 to >96 h for the silages with urea. Based on the results of the principal components, two groups (I and II) could be distinguished. The most discriminating variables in group I were dry matter (-0.9), pH (-1.2) and lactic acid bacteria (-0.9), while in group II, effluent losses (1.0), ethanol (1.0), acetic acid (0.8) and gas losses (0.8) were most important. The use of urea at inclusion levels of around 2% in corn silage reduced gas losses, improved the nutritive value and promote the aerobic stability of silages. Highlights: The addition of urea in the corn silages increased the pH values from 3.49 (control) to 4.12 (2% of urea DM). The use of urea improved chemical composition of corn silages. The addition of urea reduced the moulds and yeast populations in the corn silages after exposure to air. Urea addition improved the aerobic stability of the corn silages. We evaluated the effects of urea addition on gas and effluent losses, fermentation profile, microbial populations, aerobic stability and chemical composition of corn silages. A completely randomised design with five levels of urea (0, 0.5, 1.0, 1.5, and 2.0% based on dry matter) and five replicates was used. A decreasing linear effect of urea levels on effluent losses in corn silages was observed. In parallel, an increasing linear effect of urea levels on pH, increasing from 3.49 to 4.12 in silages without urea in relation to silages with the maximum urea level, was also observed. Urea addition improved the aerobic stability of the silages, with 62 h for the silages without urea and from 90 to >96 h for the silages with urea. Based on the results of the principal components, two groups (I and II) could be distinguished. The most discriminating variables in group I were dry matter (-0.9), pH (-1.2) and lactic acid bacteria (-0.9), while in group II, effluent losses (1.0), ethanol (1.0), acetic acid (0.8) and gas losses (0.8) were most important. The use of urea at inclusion levels of around 2% in corn silage reduced gas losses, improved the nutritive value and promote the aerobic stability of silages. Highlights: The addition of urea in the corn silages increased the pH values from 3.49 (control) to 4.12 (2% of urea DM). The use of urea improved chemical composition of corn silages. The addition of urea reduced the moulds and yeast populations in the corn silages after exposure to air. Urea addition improved the aerobic stability of the corn silages. Facultad de Ciencias Agrarias-UNCuyo 2021-07-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/4185 10.48162/rev.39.030 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 53 No. 1 (2021): January-June; 309-319 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 53 Núm. 1 (2021): Enero-Junio; 309-319 1853-8665 0370-4661 eng https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/4185/3019 https://creativecommons.org/licenses/by-nc-sa/3.0/deed.es |
