Re-ensiling and its effects on chemical composition, in vitro digestibility, and quality of corn silage after different lengths of exposure to air

Lima, Eduardo Moura de; Gonçalves, Lúcio Carlos; Keller, Kelly Moura; Rodrigues, J. A. dos S.; Santos, Fábio dos; Michel, Pedro Henrique Fulgêncio; Raposo, Vinícius Silveira; Jayme, Diogo Gonzaga

doi:10.1139/cjas-2016-0005

Cited by 15 publications

(22 citation statements)

References 27 publications

(11 reference statements)

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“…Chen & Weinberg (2014) also reported the drying process of forage exposed to air, when corn and wheat silages were subjected to 48 hours of exposure to the environment. Nonetheless, Lima et al (2017) and Michel et al (2017) reported that DM content was not altered in corn and sorghum silages exposed for up to 48 and 24 hours, respectively. Pesq.…”

Section: Resultsmentioning

confidence: 96%

“…Later, the material should be re-ensiled in the farm of destination. This practice has been recently studied in Brazil (Michel et al, 2017;Lima et al, 2017) and in other parts of the world, as in Israel (Chen & Weinberg, 2014). The re-ensiling is advantageous for producers who do not have an available area for planting, or machinery for planting and harvesting.…”

Section: Introductionmentioning

confidence: 99%

“…Studies on the effects of re-ensiling on the quality of corn silage are rare and recent (Chen & Weinberg, 2014;Lima et al, 2017). These studies have proved that re-ensiling can be done without causing a negative effect on the quality of the roughage.…”

Section: Introductionmentioning

confidence: 99%

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Chemical characteristics, aerobic stability, and microbiological counts in corn silage re-ensiled with bacterial inoculant

Coelho

Gonçalves

Rodrigues

et al. 2018

Pesq. agropec. bras.

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The objective of this work was to evaluate the effects of re-ensiling and bacterial inoculation on the quality of corn silage. The experiment was carried out in a 2x2 factorial design with or without inoculant (association of Lactobacillus plantarum and Propionibacterium acidipropionici), and with re-ensiling after 36 hours of aerobic exposure or only ensiling of the whole plant of 'BRS 1055' corn. The fermentative quality, nutritional parameters, dry matter losses, aerobic stability, and microbiological counts of silages were evaluated. Re-ensiling caused an increase of pH and in acetic acid and propionic acid concentrations, as well as in the dry matter (DM), crude protein, neutral detergent fiber, and neutral detergent fiber crude protein contents. Conversely, there was a reduction in the nonfiber carbohydrates concentration and in in vitro dry matter digestibility for the re-ensiled material. All changes were explained by the higher-effluent production and DM loss of re-ensiled material that was subjected to two compactions. Microbiology was not altered by the treatments. The use of inoculant altered ash content, but it did not influence other parameters. In contrast, re-ensiling after 36 hours of aerobic exposure caused a reduction in the nutritive value of corn silage and accentuated the DM losses.

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Section: Resultsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Chemical characteristics, aerobic stability, and microbiological counts in corn silage re-ensiled with bacterial inoculant

Coelho

Gonçalves

Rodrigues

et al. 2018

Pesq. agropec. bras.

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“…A comercialização de silagem no mercado brasileiro vem crescendo ao longo dos anos exigindo a necessidade de reensilagem da SM (Coelho et al, 2018). Alguns fatores têm contribuído para estimular o mercado de venda de silagem, tais como: área limitada para o cultivo da cultura do milho, perdas excessivas durante o armazenamento, limitações climáticas e topografia (de Lima et al, 2016). Em fazendas de porte menor a escassez de mão de obra e recursos financeiros limitados para aquisição dos equipamentos necessários para o cultivo e colheita da cultura, contribuem para a decisão de compra de forragem (dos Anjos et al, 2018).…”

Section: Introductionunclassified

“…Em fazendas de porte menor a escassez de mão de obra e recursos financeiros limitados para aquisição dos equipamentos necessários para o cultivo e colheita da cultura, contribuem para a decisão de compra de forragem (dos Anjos et al, 2018). Desta forma, a aquisição de silagem e sua reensilagem se tornou prática comum realizada no Brasil (de Lima et al, 2016). As transferências demandam tempos longos (1 a 2 dias), durante os quais as silagens são inevitavelmente expostas ao ar (Chen e Weinberg 2014), e isso pode causar deterioração da silagem devido à estimulação de microorganismos aeróbios.…”

Section: Introductionunclassified

Efeito do aditivo químico a base de ácido propiônico e ácido fórmico em silagens de milho: perfil fermentativo e desempenho de vacas leiteiras

Arthur¹

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Effect of propionic acid and formic acid-based chemical additives on corn silages: fermentative profile and performance of dairy vaccines Organic acids have a great impact on silage fermentation and aerobic stability, acting very effectively against fungi and yeast. The objective of the present study was to evaluate the impact of a chemical additive in the fermentation profile of whole plant corn silage (WPCS) with high dry matter content and the dairy cows' performance fed with re-ensiled WPCS. The study was divided into two trials: Trial 1) The chemical additive Lupro-Mix® NA (35% propionic acid, 21% sodium formate, 20% formic acid, 4% sodium propionate and 20% water) was added in whole plant corn with high dry matter (~40%) and ensiled in experimental silos. The treatments were as follows: (i) without additive (control); (ii) Lupro-Mix® NA (4L per ton of natural matter). A completely randomized design with four replications per treatment was used. The additive was significantly efficient in reducing ethanol content, 1.2 propanediol, ethyl lactate, ethyl acetate, as well as DM losses. There was also a significant increase of propionic acid in relation to the control treatment, thus reflecting in greater aerobic stability of the treated mass. The silage with Lupro-Mix® NA showed a satisfactory result in the maintenance of the aerobic stability and reduction of the silage losses. Trial 2) The same additive tested in laboratory silos was tested on commercial scale silages in bag silos to feed lactating. In a cross over design, the cows were distributed in randomized blocks in 10 pairs of two animals, randomly distributed, within each block, in two treatments (i) silage without additive (control); (ii) silage with Lupro-Mix® NA (4L per ton of natural matter). The results pointed to a numerical reduction in the ingestion time of the animals fed treated silages. Similarly, numerically there was an increase in dry matter intake, milk yield, 4% fat corrected milk, and milk energy, as well as a trend towards increased protein content and yield. The use of Lupro-Mix® NA chemical additive reduces DM losses, improves aerobic stability and dairy cow performance.

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Effects of re‐ensiling on the fermentation quality and microbial community of napier grass (Pennisetum purpureum) silage

2021

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BACKGROUND With the rapid development of animal husbandry, the silage trade has increased in frequency. The re‐ensiling of materials is often required before or after trading, resulting in the exposure of the silage to air before re‐sealing. To develop a re‐ensiling technique for silage, different silage exposure periods were simulated to check the possible effects on the fermentation quality and microbial community of silage. RESULTS Fresh and wilted napier grass (Pennisetum purpureum) were ensiled for 90 days, then exposed to air for 0, 6, 12, 24, 36 or 48 h, before being re‐ensiled. As a control, grass was directly ensiled for 180 days. Wilting increased the relative abundance of Klebsiella. The relative abundance of Paenibacillus in the unwilted silage was much higher than that in the wilted silage. Re‐ensiling increased the relative abundance of Lactobacillus, but decreased the relative abundances of Klebsiella, Bacillus, and Paenibacillus. In addition, Lactobacillus became the dominant bacteria in the re‐ensiled fresh and wilted silages. Re‐ensiling within 48 h of exposure did not affect the fermentation quality of the wilted silage, whereas that of the unwilted silage declined when exposed to air for over 24 h. CONCLUSION Re‐ensiling wilted napier grass silage within 48 h of aerobic exposure did not cause the fermentation quality to decline. The unwilted napier grass silage contained a higher relative abundance of Paenibacillus and significantly deteriorated when re‐ensiled after over 24 h of aerobic exposure. © 2021 Society of Chemical Industry

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Re-ensiling and its effects on chemical composition, in vitro digestibility, and quality of corn silage after different lengths of exposure to air

Cited by 15 publications

References 27 publications

Chemical characteristics, aerobic stability, and microbiological counts in corn silage re-ensiled with bacterial inoculant

Chemical characteristics, aerobic stability, and microbiological counts in corn silage re-ensiled with bacterial inoculant

Efeito do aditivo químico a base de ácido propiônico e ácido fórmico em silagens de milho: perfil fermentativo e desempenho de vacas leiteiras

Effects of re‐ensiling on the fermentation quality and microbial community of napier grass (Pennisetum purpureum) silage

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