Glycerol inclusion levels in corn and sunflower silages

Martins, Adriana de Souza; Oliveira, Juliane Ribeiro de; Lederer, M.; Moletta, José Luiz; Galetto, Shivelly Los; Pedrosa, Victor Breno

doi:10.1590/s1413-70542014000500009

Cited by 10 publications

(10 citation statements)

References 18 publications

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“…On the other hand, the crude protein, neutral detergent fiber, acid detergent fiber and ether extract contents decreased. These results are similar to those found by Martins et al (2014) that observed increase of dry matter, non-fiber carbohydrates and total digestible nutrients and reduction of crude protein levels, neutral detergent fiber and acid fiber, due to the addition of glycerin (0, 15, 30 and 45%) in the corn silage.…”

Section: De Bcsupporting

confidence: 91%

“…Martins et al (2014), when assessing the corn and sunflower silages with 0, 15, 30 and 45% of glycerin did not observe differences in pH at the opening of the silages.…”

Section: Introductionmentioning

confidence: 70%

“…It is observed that there was an enrichment of the roughage in readily fermentable carbohydrates, as the inclusion of glycerin was higher, offsetting to some extent the losses that occur during ensiling and exposure to oxygen after opening the silo. Martins et al (2014) when evaluating levels of inclusion of glycerin in corn silage observed that the NFC also increased linearly with values of 36.2; 44.8; 53.4 and 62.8% respectively.…”

Section: De Bcmentioning

confidence: 96%

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Nutritional composition and ruminal degradability of corn silage (Zea mays L.) with addition of glycerin in silage

et al. 2015

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The objective was to study the corn silage with addition of 0, 5, 10, 15 and 20% glycerin, ensiled in experimental silos of PVC. At the opening of the silos there were evaluated the chemical composition, in vitro digestibility of dry matter (IVDDM) and cell wall (IVDCW) and aerobic stability through measures of temperature and pH of silage at 0, 24, 48, 72, 96 and 120 hours. In situ degradability of dry matter, crude protein and neutral detergent fiber of silages were evaluated in fistulated cattle using samples incubated at 0, 2, 4, 6, 12, 24, 48 and 96 hours. The experimental design was completely randomized design and statistical analyzes were performed using Bayesian inference. Increases were observed in DM, mineral matter (MM), non-fibrous carbohydrates (NFC) and reductions for neutral detergent fiber (NDF), acid detergent fiber (ADF), crude protein (CP) and ether extract (EE) as the inclusion of glycerin was higher. The content of total digestible nutrients (TDN) estimated in treatments with 5, 10, 15 and 20% glycerin, were superior to the control (P<0,05) range of 2.13, 8.95, 10.33 and 13.13% respectively. The temperature and pH of the silage with 10 and 15 and 20% glycerin remained lower than those levels (P<0.05) measured during silage and 20% glycerin showed high stability after 120hours. The IVDDM and IVDCW in corn silages with 15 and 20% were higher than the other (P<0,05). The effective degradability of DM fractions in passage rates of 2, 5 and 8% / h was better in silage with 15% and 20% glycerin. Glycerin has proved to be a great additive for corn silage being able to enrich the energy density, improving the degradability of DM and maintaining the aerobic stability of silage. Key words: Digestibility of dry matter, energy, aerobic stability, glycerol, pH, temperature ResumoObjetivou-se estudar a silagem de milho ensilada com 0, 5, 10, 15 e 20% de glicerina, em silos experimentais de PVC. Foi avaliada a estabilidade aeróbia por medidas de pH e temperatura da massa ensilada (TME) às 0, 24, 48, 72, 96 e 120h. Foi avaliada a composição química e a digestibilidade in vitro da matéria seca (DIVMS) e da parede celular (DIVPC). Em três bovinos fistulados avaliou-se a degradabilidade in situ da matéria seca (MS), e a porcentagem de desaparecimento da proteína bruta (PB) e da fibra em detergente neutro (FDN) incubadas em 0, 2, 6, 12, 24, 48, 72 e 96h. O delineamento experimental foi inteiramente casualisado e as análises estatísticas realizadas por Inferência Bayesiana. Foram observados aumentos de MS, CNF, matéria mineral e a redução de FDN, PB, fibra em detergente ácido e extrato etéreo à medida que se aumentou a inclusão da glicerina. O NDT estimado nas silagens com 5, 10, 15 e 20% de glicerina, foi superior ao controle (P<0,05) variando de 2,13; 8,95; 10,33 e 13,13%, respectivamente. O pH e a TME das silagens com 10, 15 e 20% de glicerina se mantiveram inferiores (P<0,05) aos com 0 e 5% de glicerina no período avaliado, destacando-se a silagem com 20% de glicerina com maior estabilidade até 120...

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Section: De Bcsupporting

confidence: 91%

“…Martins et al (2014), when assessing the corn and sunflower silages with 0, 15, 30 and 45% of glycerin did not observe differences in pH at the opening of the silages.…”

Section: Introductionmentioning

confidence: 70%

Section: De Bcmentioning

confidence: 96%

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Nutritional composition and ruminal degradability of corn silage (Zea mays L.) with addition of glycerin in silage

et al. 2015

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“…The composition of crude glycerin, i.e., mainly non-fibrous carbohydrates, reduced the proportions of NDF and ADF with increasing levels of crude glycerin, which is related to the dilution effect (Table 3). Martins et al (2014) observed reductions by 25.3 and 24.7% of NDF when 450 g kg −1 of DM of glycerin was added to silage produced with corn and sunflower, respectively.…”

Section: Discussionmentioning

confidence: 83%

The use of crude glycerin as an alternative to reduce fermentation losses and enhance the nutritional value of Piatã grass silage

et al. 2017

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-The objective of this study was to evaluate fermentation losses and the nutritional value of silage of Brachiaria brizantha cv BRS Piatã ensiled with different levels of crude glycerin. The experiment followed a 4 × 2 completely randomized factorial design with four doses of crude glycerin (0, 100, 200, and 300 g kg −1 of DM silage) and two cutting ages (45 and 60 days) with four replicates per treatment (silos). The parameters of dry matter losses, effluents losses, gas losses, pH, microbial population, and nutritional value of the silage were evaluated. There was no difference in pH among the tested doses of crude glycerin. However, reductions in dry matter and gas losses were observed as a function of crude glycerin doses. Bacterial populations of lactic acid and facultative mesophilic anaerobes also increased as a function of crude glycerin inclusion. Crude glycerin increased ether extract levels and reduced neutral detergent fiber and acid detergent fiber concentrations (dilution effect), improving chemical composition of the silage. Crude glycerin can be used in the ensiling of Piatã grass and the dose of 300 g kg −1 of DM yields the best results.Key Words: biodiesel, byproduct, forage conservation, glycerol, ruminants Revista Brasileira de Zootecnia

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“…De característica higroscópica e boa palatabilidade pelos ruminantes (Mota et al, 2011), é alternativa para diminuir custos e melhorar o valor nutricional da ração. Ainda, a glicerina possui potencial uso como aditivo, para auxiliar no processo fermentativo e qualidade nutricional em silagens de algumas forrageiras (Martins et al,2014;Rigueira et al, 2017).…”

Section: Introductionunclassified

Substituição do milho moído pela glicerina como aditivo em silagem de capim elefante

Viégas¹,

Tonin²,

Silveira³

et al. 2018

Bol. Ind. Anim.

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este estudo testar o aumento linear da inclusão de glicerina bruta (86% de pureza) em substituição ao milho moído, como aditivo, na forragem de capim-elefante destinada a ensilagem, avaliando-se a qualidade nutricional do alimento e a viabilidade da ensilagem do material. Foram testados cinco níveis de substituição do milho pela glicerina em taxas que variaram de 3,12 a 12,5% sobre a matéria natural da forragem, além de um tratamento controle (apenas forragem). Realizaram-se análises bromatológicas e de digestibilidade para avaliar o valor nutricional da mistura durante a ensilagem e após o processo fermentativo, na silagem. Para avaliar a qualidade fermentativa foram feitas avaliações de pH, nitrogênio amoniacal, recuperação de matéria seca e densidade. A inclusão do milho moído incrementou (P<0,05) o teor de matéria seca em até 28%, tanto na forragem fresca, bem como na silagem. Tanto a inclusão do milho, bem como a substituição deste pela glicerina resultou (P<0,05) em um incremento médio de 25% e 32% na digestibilidade in situ e valor energético da silagem, respectivamente quando comparado ao capim puro. Isto, devido ao decréscimo (P<0,05) dos teores de fibra em detergente neutro e fibra em detergente ácido na silagem. A inclusão de glicerina aumentou (P<0,05) as perdas de proteína bruta durante a fermentação e diminuiu a recuperação da matéria seca. O teor de matéria seca da forragem parece ser fator chave para o sucesso de inclusão da glicerina como aditivo na ensilagem do capim-elefante, no intuito de evitar perdas expressivas de qualidade nutricional durante a fermentação.Palavras-chave: avaliação nutricional, fermentação, subproduto. REPLACEMENT OF GROUND CORN WITH GLYCERIN IN ELEPHANT GRASS SILAGEABSTRACT: This study was performed to test the linear inclusion of crude glycerin (86% purity) replacing ground corn as an additive mixed with elephant grass forage for silage, evaluating the nutritional quality of the food and the viability of silage. Five levels of glycerin as corn substitute were tested, ranging from 3.12 to 12.5% of total forage green matter, in addition to a control treatment (forage only). Bromatological and digestibility analyses were carried out to evaluate the nutritional value of the mixture during ensiling and of the silage after the fermentation process. The pH, ammoniacal nitrogen, dry matter recovery, and density were measured to evaluate the fermentative quality. The inclusion of ground corn increased (P<0.05) by 28% the dry matter content in both fresh forage and silage. The inclusion of corn and its substitution with glycerin improved (P<0.05) by 25 and 32% in in situ digestibility and the energy value of the food, respectively, when compared to the control treatment. This finding was due to a decrease (P<0.05) in neutral detergent fiber and acid detergent fiber in silage. The inclusion of glycerin increased (P<0.05) crude protein losses during fermentation and decreased dry matter recovery. The dry matter content of forage seems to be a key factor for the successful inclusion ...

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Glycerol inclusion levels in corn and sunflower silages

Cited by 10 publications

References 18 publications

Nutritional composition and ruminal degradability of corn silage (Zea mays L.) with addition of glycerin in silage

Nutritional composition and ruminal degradability of corn silage (Zea mays L.) with addition of glycerin in silage

The use of crude glycerin as an alternative to reduce fermentation losses and enhance the nutritional value of Piatã grass silage

Substituição do milho moído pela glicerina como aditivo em silagem de capim elefante

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