Qualidade de silagens de sorgo com aditivos

Vieira, F.A.P.; Borges, I.; Stehling, C.A.V.; Gonçalves, Lúcio Carlos; Coelho, Sandra Gesteira; Ferreira, Mercia; Rodrigues, J. A. S.

doi:10.1590/s0102-09352004000600011

Cited by 20 publications

(7 citation statements)

References 13 publications

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“…According to Vieira et al (2004), ensiling can result in the losses of nutrients due to the undesirable fermentation processes. Therefore, to overcome the nutritive losses of the ensiled material, certain additives are used.…”

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confidence: 99%

Evaluation of the Addition of Urea or Calcium Oxide (CaO) on the Recovery of Dry Matter of the By-Product of Sweet Corn Silage

Vieira¹,

Cezário²,

Valente³

et al. 2017

JAS

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The objective of this study was to evaluate the effects of the addition of different percentages of urea or calcium oxide (CaO) on the fermentative characteristics and chemical composition of the by-product of sweet corn silage, without whole kernel corn. The experimental design was completely randomized in a 2 × 5 factorial scheme, with two additives (CaO or urea) and five inclusion levels (0, 0.5, 1.0, 1.5, and 2.0% in natural matter of by-product of sweet corn silage). There was interaction between the type of additives and addition levels (CaO or urea) for pH values (P < 0.05). The mean pH values ranged from 3.40 to 5.36 in the additive silage. For effluent production, the additive type interaction and addition levels were significant (P < 0.05). The addition of CaO independent of the level used was not effective in reducing dry matter (DM) losses during ensilage. The total losses of DM presented a significant increase with the levels of addition of CaO, varying from 91 to 177% in relation to the control silage. The addition of urea to all levels had a satisfactory effect on the total loss of DM, ranging from 38 to 69% improvement in the reduction in relation to the control silage. The additive CaO was not efficient in reducing the fermentation losses and preserving the silage. However, urea was efficient in the recovery of DM in the ensilage process.

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confidence: 99%

Evaluation of the Addition of Urea or Calcium Oxide (CaO) on the Recovery of Dry Matter of the By-Product of Sweet Corn Silage

Vieira¹,

Cezário²,

Valente³

et al. 2017

JAS

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“…As for butyric acid, there was a behavior similar to that of propionic acid, however, the concentrations were within the appropriate range, according to Vieira et al (2004), less than 1.0 g kg -1 . The proliferation of clostridia negatively affects the quality of silage, due to the production of butyric acid, which limits the intake of silage by animals.…”

Section: Resultsmentioning

confidence: 80%

Fermentation Parameters and Quality of Sweet and Biomass Sorghum Silages With Doses of Vinasse

Taveira

Costa

Aquino

et al. 2020

JAS

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The cultivation of sorghum for silage production has gained more space each year because of its satisfactory nutritional characteristics, resistance to water deficit and adaptability to various types of soil. Thus, the use of sorghum silage has been an alternative for periods of low forage production, providing quality food for ruminants. In this context, the objective was to evaluate the fermentation parameters and quality of sweet and biomass sorghum silages added with doses of vinasse. The experiment was a 2 x 5 factorial completely randomized design with three replications of two sorghum species (sweet and biomass) and five doses of vinasse applied to the soil: 0; 50; 100; 150 and 200 m3 ha-1, totaling 30 experimental silos. For silage, sorghum species were harvested in the 105-day cycle, with 30.5 and 32.3 g kg-1 dry matter, for biomass and sweet sorghum, respectively. The results showed that the biomass sorghum silage showed higher dry mass production. However, the sweet sorghum silage presented a lower buffering capacity, NH3-N, and higher concentration of lactic acid. Doses of vinasse increased the content of crude protein, in vitro digestibility of dry matter and ether extract and reduced fiber fractions in both sorghum species, showing that both species can be used for silage production. Vinasse is a promising alternative to organic fertilizer, since the use of 200 m3 ha-1 positively influenced the fermentation parameters and nutritional value of the sorghum silages.

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“…Vieira et al (2004) observed a pH increase after enriching the silages with 0.5% urea. Silages with a very high pH may favor the growth of enterobacteria (Pinho et al, 2016).…”

Section: Resultsmentioning

confidence: 92%

Qualitative parameters of pearl millet silage ammoniated with urea, at different compaction densities

Freitas

Carvalho

Santos

et al. 2017

Pesq. agropec. bras.

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-The objective of this work was to evaluate the effects of urea ammoniation of pearl millet silage, at different compaction densities, on chemical composition, losses in the ensilage process, fermentation profile, microbial population count, and aerobic stability. The experimental design was completely randomized, in a 2×4 factorial arrangement, with two compaction densities (600 and 800 kg m -³) and four urea levels (0, 2, 4, and 6% on a dry matter basis), with five replicates. For the aerobic stability assay, the experimental design was completely randomized, in a 2×4 factorial arrangement, with two times (0 and 72 hours) and four urea levels (0, 2, 4, and 6%, on dry matter basis), with five replicates. The urea levels interacted significantly with density as to the contents of organic matter, crude protein, neutral detergent insoluble protein, and as to dry matter recovery; and with exposure hours as to the contents of acid detergent fiber and lignin. Molds and yeasts were not observed in the ammoniated silages. The 800 kg m -³ density reduced losses in the fermentation process of pearl millet silage, and promoted better nutritive value than the compaction at 600 kg m -³. The use of urea does not reduce losses and does not improve the aerobic stability of silages; however, it controls mold growth after silage exposure to air.Index terms: Pennisetum glaucum, ADR500, ammoniation, fermentation losses, microbial populations. Parâmetros qualitativos da silagem de milheto amonizada com ureia, a diferentes densidades de compactaçãoResumo -O objetivo deste trabalho foi avaliar a amonização com ureia em silagens de milheto com diferentes densidades de compactação, quanto aos seus efeitos sobre a composição químico-bromatológica, as perdas no processo de ensilagem, o perfil fermentativo, a contagem de populações microbianas e a estabilidade aeróbia. Utilizou-se o delineamento inteiramente casualizado, em arranjo fatorial 2×4, com duas densidades de compactação (600 e 800 kg m -³) e quatro níveis de ureia (0, 2, 4 e 6% com base na matéria seca), com cinco repetições. Na avaliação da estabilidade aeróbia, utilizou-se o delineamento experimental inteiramente casualizado, em arranjo fatorial 2×4, com dois tempos (0 e 72 horas) e quatro níveis de ureia (0, 2, 4 e 6%, com base na matéria seca), com cinco repetições. Os níveis de ureia interagiram significativamente com a densidade, quanto aos teores de matéria orgânica, proteína bruta, proteína insolúvel em detergente neutro e quanto à recuperação de matéria seca; e com o tempo de exposição, quanto aos teores de fibra em detergente ácido e de lignina. Não se observaram mofos e leveduras nas silagens amonizadas. A densidade de compactação de 800 kg m -³ reduziu as perdas no processo de ensilagem do milheto e proporcionou silagem de maior valor nutritivo do que a compactação a 600 kg m -³. O uso de ureia não reduz as perdas e não melhora a estabilidade aeróbia das silagens; no entanto, controla o crescimento de mofos após a exposição da silagem ao ar.Termos para index...

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Qualidade de silagens de sorgo com aditivos

Cited by 20 publications

References 13 publications

Evaluation of the Addition of Urea or Calcium Oxide (CaO) on the Recovery of Dry Matter of the By-Product of Sweet Corn Silage

Evaluation of the Addition of Urea or Calcium Oxide (CaO) on the Recovery of Dry Matter of the By-Product of Sweet Corn Silage

Fermentation Parameters and Quality of Sweet and Biomass Sorghum Silages With Doses of Vinasse

Qualitative parameters of pearl millet silage ammoniated with urea, at different compaction densities

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