Evaluation of relative biological efficiency of additives in sugarcane ensiling
The objective of this study was to evaluate the effects of adding alkalis on the fermentative pattern, aerobic stability and nutritive value of the sugarcane silage. A completely randomized design with 6 additives in two concentrations (1 or 2%), plus a control group, totalizing 13 treatments [(6×2)+1] with four replications, was used. The additives were sodium hydroxide (NaOH), limestone (CaCO3), urea (CO(NH2)2), sodium bicarbonate (NaHCO3), quicklime (CaO) and hydrated lime (Ca(OH)2). The material was ensiled in 52 laboratory silos using plastic buckets with 12 L of capacity. Silos were opened 60 days after ensiling, when organic acids concentration, aerobic stability and chemical composition were determined. The Relative Biological Efficiency (RBE) was calculated by the slope ratio method, using the data obtained from ratio between desirable and undesirable silage products, according to the equation: D/U ratio = [lactic/(ethanol + acetic + butyric)]. All additives affected dry matter, crude protein, acid detergent fiber, neutral detergent fiber contents and buffering capacity. Except for urea and quicklime, all additives increased the in vitro dry matter digestibility. In general, these additives altered the fermentative pattern of sugarcane silage, inhibiting alcoholic fermentation and improving lactic acid production. The additive that showed the best RBE in relation to sodium hydroxide (100%) was limestone (89.4%). The RBE values of urea, sodium bicarbonate and hydrated lime were 49.2%, 47.7% and 34.3%, respectively.
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Sociedade Brasileira de Zootecnia
2012
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oai:scielo:S1516-359820120004000032012-05-23Evaluation of relative biological efficiency of additives in sugarcane ensilingBorgatti,Laura Maria OliveiraPavan Neto,JoséConrado,André Luiz VeigaMarino,Carolina TobiasMeyer,Paula MarquesRodrigues,Paulo Henrique Mazza alkalis fermentation silage The objective of this study was to evaluate the effects of adding alkalis on the fermentative pattern, aerobic stability and nutritive value of the sugarcane silage. A completely randomized design with 6 additives in two concentrations (1 or 2%), plus a control group, totalizing 13 treatments [(6×2)+1] with four replications, was used. The additives were sodium hydroxide (NaOH), limestone (CaCO3), urea (CO(NH2)2), sodium bicarbonate (NaHCO3), quicklime (CaO) and hydrated lime (Ca(OH)2). The material was ensiled in 52 laboratory silos using plastic buckets with 12 L of capacity. Silos were opened 60 days after ensiling, when organic acids concentration, aerobic stability and chemical composition were determined. The Relative Biological Efficiency (RBE) was calculated by the slope ratio method, using the data obtained from ratio between desirable and undesirable silage products, according to the equation: D/U ratio = [lactic/(ethanol + acetic + butyric)]. All additives affected dry matter, crude protein, acid detergent fiber, neutral detergent fiber contents and buffering capacity. Except for urea and quicklime, all additives increased the in vitro dry matter digestibility. In general, these additives altered the fermentative pattern of sugarcane silage, inhibiting alcoholic fermentation and improving lactic acid production. The additive that showed the best RBE in relation to sodium hydroxide (100%) was limestone (89.4%). The RBE values of urea, sodium bicarbonate and hydrated lime were 49.2%, 47.7% and 34.3%, respectively.info:eu-repo/semantics/openAccessSociedade Brasileira de ZootecniaRevista Brasileira de Zootecnia v.41 n.4 20122012-04-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400003en10.1590/S1516-35982012000400003 |
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Borgatti,Laura Maria Oliveira Pavan Neto,José Conrado,André Luiz Veiga Marino,Carolina Tobias Meyer,Paula Marques Rodrigues,Paulo Henrique Mazza |
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Borgatti,Laura Maria Oliveira Pavan Neto,José Conrado,André Luiz Veiga Marino,Carolina Tobias Meyer,Paula Marques Rodrigues,Paulo Henrique Mazza Evaluation of relative biological efficiency of additives in sugarcane ensiling |
author_facet |
Borgatti,Laura Maria Oliveira Pavan Neto,José Conrado,André Luiz Veiga Marino,Carolina Tobias Meyer,Paula Marques Rodrigues,Paulo Henrique Mazza |
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Borgatti,Laura Maria Oliveira |
title |
Evaluation of relative biological efficiency of additives in sugarcane ensiling |
title_short |
Evaluation of relative biological efficiency of additives in sugarcane ensiling |
title_full |
Evaluation of relative biological efficiency of additives in sugarcane ensiling |
title_fullStr |
Evaluation of relative biological efficiency of additives in sugarcane ensiling |
title_full_unstemmed |
Evaluation of relative biological efficiency of additives in sugarcane ensiling |
title_sort |
evaluation of relative biological efficiency of additives in sugarcane ensiling |
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The objective of this study was to evaluate the effects of adding alkalis on the fermentative pattern, aerobic stability and nutritive value of the sugarcane silage. A completely randomized design with 6 additives in two concentrations (1 or 2%), plus a control group, totalizing 13 treatments [(6×2)+1] with four replications, was used. The additives were sodium hydroxide (NaOH), limestone (CaCO3), urea (CO(NH2)2), sodium bicarbonate (NaHCO3), quicklime (CaO) and hydrated lime (Ca(OH)2). The material was ensiled in 52 laboratory silos using plastic buckets with 12 L of capacity. Silos were opened 60 days after ensiling, when organic acids concentration, aerobic stability and chemical composition were determined. The Relative Biological Efficiency (RBE) was calculated by the slope ratio method, using the data obtained from ratio between desirable and undesirable silage products, according to the equation: D/U ratio = [lactic/(ethanol + acetic + butyric)]. All additives affected dry matter, crude protein, acid detergent fiber, neutral detergent fiber contents and buffering capacity. Except for urea and quicklime, all additives increased the in vitro dry matter digestibility. In general, these additives altered the fermentative pattern of sugarcane silage, inhibiting alcoholic fermentation and improving lactic acid production. The additive that showed the best RBE in relation to sodium hydroxide (100%) was limestone (89.4%). The RBE values of urea, sodium bicarbonate and hydrated lime were 49.2%, 47.7% and 34.3%, respectively. |
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Sociedade Brasileira de Zootecnia |
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2012 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400003 |
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