Fermentative losses and chemical composition of elephant grass silage added with
            castor bean hull

Furtado, Rafael Nogueira; Carneiro, Maria Socorro de Souza; Coutinho, Danielle Nascimento; Cândido, Magno José Duarte; Silva, Eranildo Brasil da

doi:10.5935/1806-6690.20190017

Cited by 7 publications

(10 citation statements)

References 2 publications

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“…The greatest gas losses occurred in the control treatment, while the lowest was found in the levels of 3.0 and 4.5% fibrolytic enzymes (Table 2). This is probably because in the control treatment there were more favorable conditions for gas-producing bacteria, such as enterobacteria and the genus Clostridium (Furtado, Carneiro, Coutinho, Cândido & Silva, 2019). However, these results differ from those reported by Del Valle et al (2018), who observed no significant effect of fibrolytic enzymes on gas losses in silages of sugarcane (Saccharum officinarum L. RB02-5799).…”

Section: Resultscontrasting

confidence: 61%

“…On the other hand, when harvested late or managed inappropriately, it has high content of NDF, especially lignin, a plant component that has very reduced digestibility. For these reasons, it is necessary to use additives that modulate anaerobic fermentation and increase the nutritional value of elephant grass silage (Furtado, Carneiro, Coutinho, Cândido, & Silva, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes

Lemos

Andrade²,

Silva

et al. 2020

Acta Sci. Anim. Sci.

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The aim of this study was to evaluate nutritional value, fermentation losses, and aerobic stability of elephant grass silage (Pennisetum purpureum Schum.) treated with exogenous fibrolytic enzymes. The experiment was conducted in a completely randomized design with four replicates (experimental silos) and five levels of fibrolytic enzymes (0, 1.5, 3.0, 4.5 and 6.0%). For this, the elephant grass was ensiled at 70 days of age in plastic buckets with 20L capacity. Silos were opened 60 days after sealing. Analyses were made for chemical composition, in vitro dry matter digestibility (IVDMD), effluent losses (EL), gas losses (GL) and dry matter recovery (DMR), as well as the aerobic stability of the silage. Data were analyzed with PROC REG of SAS® University, at 5% probability. There was an increase in IVDMD content (p < 0.0001) and reduction in NDF and ADF contents (p < 0.0001) according to enzyme levels. These results were related to the increase in the degradation of fiber fractions. There were higher EL (p = 0.0062) as a function of enzyme levels and aerobic deterioration after silo opening, at all levels tested. Thus, it can be concluded that the exogenous fibrolytic enzymes change the chemical composition of elephant grass silage, and increase its digestibility and nutritional value. Moreover, when used alone as an additive, fibrolytic enzymes are not able to recover all dry matter of this silage (with effluent and gas losses), and are not able to maintain aerobic stability in the first hours after opening the silos.

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Section: Resultscontrasting

confidence: 61%

Section: Introductionmentioning

confidence: 99%

Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes

Lemos

Andrade²,

Silva

et al. 2020

Acta Sci. Anim. Sci.

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“…The recovery of dry matter of the ensiled mass was inversely correlated with EL and GL, where lower proportions of these are related to a higher percentage of DM in the final product, due to the lower activity of spoilage microorganisms during fermentation, resulting in greater efficiency in the preservation of silage components (FURTADO et al, 2019). A similar effect was reported by Garcez et al (2019), when evaluated the effect of including faveira pod in elephant grass silage, obtaining values of 62.27, 63.56, 68.83, and 70.47% DMR in inclusions of 0, 8, 16 and 24% faveira pods, respectively.…”

Section: Resultsmentioning

confidence: 99%

Mesquite pods as a source of soluble carbohydrates in elephant grass silages

Ferreira¹,

Garcez²,

Mascena³

et al. 2021

Bol. Ind. Anim.

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VAGENS DE ALGAROBA COMO ADITIVO ENERGÉTICO EM SILAGENS DE CAPIM ELEFANTE R es umoObjetivou-se nesta pesquisa avaliar os parâmetros fermentativos e a composição química da silagem de Capim Elefante com adição de 8, 16, 24 ou 32% de vagens de algaroba trituradas, como fonte de carboidratos solúveis, junto ao tratamento controle (sem vagens). Foram avaliados os parâmetros fermentativos quanto às perdas por gases (PG), perdas por efluentes (PE), recuperação de matéria seca (RMS), pH, nitrogênio amoniacal (N-NH3), e a composição química referente aos teores de matéria seca (MS), proteína bruta (PB), fibra em detergente neutro (FDN), fibra em detergente ácido (FDA), hemicelulose (HEM), celulose (CEL), lignina (LIG) e nutrientes digestíveis totais (NDT). Observou-se comportamento quadrático (p<0,05) para PG, obtendo-se redução de 45,58% nesse parâmetro com 32% de inclusão, em relação ao tratamento controle. Houve decréscimo (p<0,05) nos valores de PE (59,22%) e N-NH3 (38,21%) e acréscimo na RMS de 17,57% conforme a adição das vagens na silagem. Quanto à composição química, a inclusão das vagens promoveu incrementos (p<0,05) de 72,28%, 69,58% e 29,80% para os teores de MS, PB e NDT, respectivamente, e diminuição nos valores de FDN (29,92%) e FDA (31,84%) até o maior de nível de inclusão das vagens (32%). A inclusão de até 32% de vagens de algaroba trituradas em silagem de capim elefante promove melhor estabilidade fermentativa no silo, por redução nas perdas e aumento no teor de MS da massa ensilada, o que minimiza a lixiviação de nutrientes. O uso das vagens como fonte de carboidratos solúveis, também pode melhorar a composição química da silagem, elevando os teores de PB e de NDT, e reduzindo os teores de FDN, FDA e Lignina.

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“…The losses through fermentation gases (% initial DM) in the ensiling process and the DM recovery index were calculated as described by Furtado et al (2019).…”

Section: Methodsmentioning

confidence: 99%

Chemical composition and fatty acid profile of a seedpropagated elephant grass genotype, ensiled at different regrowth ages

Lopes

Bedeschi²,

Morenz³

et al. 2022

Semina: Ciênc. Agrár.

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This study aimed to evaluate the chemical composition and fatty acid (FA) profile of forage and silage of a seed-propagated elephant grass genotype called “PCEA” harvested at 75, 90, 105 and 120 days of regrowth. A randomized block design with five replications was used. The results were analyzed by mixed models (P < 0.05) that included treatment (regrowth age) as a fixed effect and block as a random effect. Linear and quadratic effects of the treatments were analyzed using orthogonal contrasts. There was linear increase on total dry matter (DM) forage production and linear decrease on leaf:stem ratio as a function of the increase in regrowth age (P < 0.05). In response to the advance of regrowth age, “PCEA” forage and silage showed linear decreases on crude protein (CP) content (g kg-1 DM) and in vitro DM digestibility (g kg-1); and linear increases on DM (g kg-1), lignin (g kg-1 DM), and acid detergent insoluble protein (%CP) contents (P < 0.05). All “PCEA” silages had DM content < 200 g kg-1, pH > 4.0, and ammonia N content > 10% total N. In response to the advance of regrowth age, linear decreases (P < 0.05) were observed on forage and silage linoleic, α-linolenic, and total FA contents (g kg-1 DM). From 75 to 120 days of regrowth, the seed-propagated elephant grass genotype “PCEA” presents forage and silage with low nutritional quality for feeding dairy cattle, moderate to high linoleic acid contents, and moderate to low α-linolenic acid contents. The “PCEA” forage and silage obtained from 75 to 120 days of regrowth presents low potential for production of milk naturally enriched with bioactive FAs beneficial to human health.

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Fermentative losses and chemical composition of elephant grass silage added with castor bean hull

Cited by 7 publications

References 2 publications

Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes

Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes

Mesquite pods as a source of soluble carbohydrates in elephant grass silages

Chemical composition and fatty acid profile of a seedpropagated elephant grass genotype, ensiled at different regrowth ages

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