Características bromatológicas, fermentativas e população de leveduras de silagens de cana-de-açúcar acrescidas de ureia e aditivos absorventes de umidade

Lopes, João de Magalhães; Evangelista, Antônio Ricardo

doi:10.1590/s1516-35982010000500007

Cited by 26 publications

(23 citation statements)

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“…These results indicate that the silage with 1% urea did not improve the fiber quality, i.e., it did not solubilize the cell wall components. These results corroborate Lopes and Evangelista (2010), who observed the greatest ADF content in silage with the highest urea content (1.5%). The data found in this study and by the aforementioned authors prove that the chemical additives used are not always able to solubilize the ADF components; however, hemicellulose, which is an NDF component of better nutritive value, was solubilized by CaO, even when a lower dose (0.5%) was used in the ensiling of sugarcane.…”

supporting

confidence: 91%

“…The silage without additive not from differ (P>0.05) from that with 1% CaO. Lopes and Evangelista (2010) found the lowest percentage of CP (12.33%) in the sugarcane silage utilizing 1.5% urea, with 1% urea. Thus, the elevated CP content in the silage with 1% in this study differs from the values found in the literature, so we can infer that some problem related to the sampling of this silage may have contributed to this result, e.g.…”

Section: Resultsmentioning

confidence: 80%

“…Lopes and Evangelista (2010) evaluated the fermentation characteristics of sugarcane silages enriched with 1.5% urea and observed high levels of N-NH 3 (36.68%) and pH (6.48). According to these authors, the greater amount of ammonia nitrogen in the silage with 1.5% urea explains the pH at silo opening.…”

Section: Resultsmentioning

confidence: 99%

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Qualitative parameters of sugarcane silages treated with urea and calcium oxide

et al. 2015

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The objective was to evaluate the fermentation parameters, chemical composition and fractionation of carbohydrates of sugarcane silages treated with urea and calcium oxide (CaO). Upon ensiling, the treatments applied to the sugarcane were: 1% urea; 0.5% urea + 0.5% CaO; and 1% CaO, in relation to a control silage, without additive. The chemical additives (urea and CaO) were added at ensiling, in an amount calculated based on the fresh matter (as is). A completely randomized design consisting of four treatments (silages) and nine replicates was adopted. The material was conditioned in PVC mini-silos for five months. At the end of the storage period, silos were weighed again and samples were collected to quantify the losses caused by fermentation, dry matter recovery, pH, and ammonia nitrogen (N-NH 3 ) of the silages and to evaluate the chemical composition and fractionation of carbohydrates. The silage with 1% CaO showed the highest recovery of dry matter, and in terms of carbohydrate fractionation, it showed the highest levels of soluble and potentially soluble carbohydrates. Addition of 1% CaO during ensiling reduces the fermentation losses of sugarcane silages. Key words: Chemical additives, dry matter recovery, ensiling ResumoObjetivou-se avaliar os parâmetros fermentativos, a composição química e o fracionamento de carboidratos das silagens de cana-de-açúcar tratadas com ureia e óxido de cálcio (CaO). Na ensilagem, os tratamentos aplicados à cana foram 1% de ureia; 0,5% de ureia + 0,5% de CaO; e 1% de CaO, em comparação a uma silagem controle, sem aditivo. Os aditivos químicos (ureia e CaO) foram adicionados no momento da ensilagem, em quantidade calculada com base na matéria natural. Utilizouse um delineamento inteiramente casualizado, composto de quatro tratamentos (silagens) e nove repetições. O material foi acondicionado em minissilos de PVC, durante cinco meses. Ao fim do período de armazenamento, foi feita uma nova pesagem e coletadas amostras, para quantificação das perdas decorrentes da fermentação, da recuperação de matéria seca, do pH e do nitrogênio amoniacal (N-NH 3 ) das silagens e para avaliação da composição química e do fracionamento de carboidratos. A silagem com 1% de CaO apresentou maior recuperação de matéria seca, e em relação ao fracionamento dos carboidratos apresentou maior teor de carboidratos solúveis e potencialmente solúveis. A adição de 1% de CaO durante a ensilagem reduz as perdas fermentativas de silagens da cana-de-açúcar. Palavras-chave: Aditivos químicos, ensilagem, recuperação de matéria seca

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supporting

confidence: 91%

Section: Resultsmentioning

confidence: 80%

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Qualitative parameters of sugarcane silages treated with urea and calcium oxide

et al. 2015

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“…The use of urea in the sugar cane ensilage reduced 27% of the aerobic stability in relation to the control, and inhibited the effect of L. buchneri, as observed in the silage with inoculate + urea, which presented the same stability as control: 33 hours. This inhibition was probably due to formation of ammonia inside the silo, because the ammonia presents inhibitory effect with microorganisms (Lopes & Evangelista, 2010), which is already evident with yeast and may have reduced the growth of populations of heterofermentative lactic-acid bacteria, producing acetic and lactic acid. Pedroso et al (2008) observed that the aerobic stability in sugar cane silage with addition of 10 g/kg of urea did not differ from the control silage.…”

Section: Results An Discussionmentioning

confidence: 99%

Chemical composition, fermentation, in vitro digestibility and in situ degradability of sugar cane silages with Lactobacillus, urea and agricultural byproduct

Maeda

Zeoula²,

Jobim³

et al. 2011

R. Bras. Zootec.

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-The objective of this study was to evaluate the sugarcane silage in relation to chemical composition, pH, total losses, aerobic stability, in vitro digestibility of dry matter (IVDDM) and effective degradability (ED) of bovine and buffaloes under the following treatments (on a dry matter (DM) basis): sugarcane silage control (control), with addition of 3.3% urea; with addition of Lactobacillus buchneri (inoculate); with inoculate + 3.3% urea; with inoculate + 25.0% soybean hull, and with inoculate + 25.0% cassava byproduct meal. The experiment was analyzed through a completely randomized design with three replications, and for DM ED, a double 4 × 4 Latin square with a 4 × 2 factorial arrangement was used. The sugarcane variety was the RB-855156 (precocious). The urea increased the protein level and reduced neutral and acid detergent fiber and lignin fractions. Treatments with inoculate + cassava byproduct and inoculate + soybean hull increased DM levels. Bovines presented higher IVDDM than buffaloes. pH values varied from 3.1 to 4.0. Mean total losses observed were 7.8%. Treatments with inoculate + cassava and inoculate + soybean hulls resulted in larger aerobic stability with 61 and 81 hours, respectively, in relation to silages control (24 h) and control with 3.3% urea (33 h). A higher DM ED was verified for silages with inoculate + control and inoculate + soybean hulls at 2%/h passage rates and higher neutral detergent fiber ED for the treatment of control + inoculate + soybean hulls at 2 and 5%/h. Silages treated with urea, L. buchneri or agricultural byproduct plus inoculate presented better quality pattern.

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“…Além disso, evita sobras de um ano para outro e reduz os riscos de perdas pelo fogo ou geada. Porém, o processo de produção e fornecimento da silagem de cana de açúcar aos animais envolve perdas consideráveis e pode até inviabilizar esta opção (Lopes and Evangelista, 2010).…”

Section: Introductionunclassified

Ensilaje de caña con aditivos químicos e inoculantes

Silveira

Santos²

2017

Pubvet

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RESUMO. O efeito de diferentes aditivos: ureia, cloreto de sódio (NaCl), Óxido de Cálcio (CaO) e inoculante bacteriano na silagem de cana de açúcar foi avaliado, através da composição química bromatológica e parâmetros de fermentação para redução de perdas do material ensilado. A silagem foi preparada com aditivos químicos e inoculante bacteriano, tratamento 1, controle; tratamento 2, cana de açúcar + 1% de ureia; tratamento 3, cana de açúcar + 2% de NaCl; tratamento 4, cana de açúcar + 2% de CaO; tratamento 5, cana de açúcar + bactéria Lactobacillus buchneri. Numericamente os menores valores encontrados foram com o inoculante Lactobacillus buchneri, os demais tratamentos foram satisfatórios quanto à preservação do material ensilado. Conclui-se que a ureia teve o melhor valor de proteína bruta (PB), melhorando a qualidade da silagem e inibindo a proliferação dos microrganismos indesejáveis para a silagem de cana de açúcar. Palavras chave: Aditivos químicos, fermentação alcoólica, conservação de volumosoSilage of cane sugar increased with chemical additives and inoculant bacteria.ABSTRACT. The effect of different additives: Urea, sodium chloride (NaCl), calcium oxide (CaO) and silage inoculant in sugarcane mas evaluated by chemical components and fermentation parameters for the reduction of the ensiled material losses. Silage was prepared with chemical additives and inoculate yourself bacterial, tration 1 control; tration 2 sugarcane + 1 % urea; tration 3 sugarcane 2% NaCl; tration 4 sugarcane + 2% CaO; tration 5 sugarcane + Lactobacillus buchneri bacteria. Numerically the lowest values were found with the inoculant Lactobacillus buchneri, the other treatments were satisfactory as the preservation of the ensiled material. It follows that the urea had the best value crude protein (PB), improving the quality of the silage and inhibiting undesirable proliferation of micro-organisms for silage sugarcane Keywords: Chemical additives, fermentation, forage conservation Evaluación del ensilaje de caña de azúcar con inclusión de aditivos químicos e inoculantes bacterianos RESUMEN. El efecto de diferentes aditivos: urea, cloruro de sodio (NaCl), óxido de calcio (CaO) e inoculantes bacterianos en ensilaje de caña de azúcar fue evaluado, por medio de la composición química bromatológica y parámetros de fermentación para reducción de pérdidas del material

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Características bromatológicas, fermentativas e população de leveduras de silagens de cana-de-açúcar acrescidas de ureia e aditivos absorventes de umidade

Cited by 26 publications

References 9 publications

Qualitative parameters of sugarcane silages treated with urea and calcium oxide

Qualitative parameters of sugarcane silages treated with urea and calcium oxide

Chemical composition, fermentation, in vitro digestibility and in situ degradability of sugar cane silages with Lactobacillus, urea and agricultural byproduct

Ensilaje de caña con aditivos químicos e inoculantes

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