Parâmetros bromatológicos e fermentativos das silagens de milho e girassol

Possenti, Rosana Aparecida; Junior, Evaldo Ferrari; Bueno, Mauro Sartori; Bianchini, Diorande; Leinz, Frederico Fontoura; Rodrigues, Carlos Frederico de Carvalho

doi:10.1590/s0103-84782005000500031

Cited by 33 publications

(36 citation statements)

References 3 publications

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“…The values found for CP in the present study were close to those reported by Vilela (1985), who obtained contents of 4 to 7% in the DM, although inferior to those mentioned by Evangelista et al (1991) and Obeid et al (1992), who obtained contents of 6.9 to 7.1 and from 5.9 to 10.9 in the DM, respectively, for the silage of corn intercropped with soybean, and Possenti et al (2005), who found mean values of 9.4% CP in the corn silage.…”

Section: Resultssupporting

confidence: 85%

Intercropping of corn, brachiaria grass and leguminous plants: productivity, quality and composition of silages

et al. 2012

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-The present study was carried out with the objective to evaluate the productive and qualitative characteristics of forages produced in systems of intercropping of corn, brachiaria grass and different leguminous plants. Productivity, bromatological composition and the fermentative profile of the silages from the following treatments were evaluated: corn in exclusive cultivation (CEC); intercropping of corn with brachiaria grass (CB); intercropping of corn, brachiaria grass and Calopogonium mucunoides (CBCal); intercropping of corn, brachiaria grass and Macrotyloma axillare (CBMac); and intercropping of corn, brachiaria grass and Stylozanthes capitata (CBSty). The experimental design utilized was completely randomized. For each type of cultivation, five plots or replications of three linear meters were harvested, and the material was separated. The variables assessed were: dry matter productivity per area; dry matter productivity of corn per area; crude protein production per area and productivity of total digestible nutrients per area. The material originated from the cultures was ensiled, with dry matter between 28 and 32%. After, the material was placed and compacted appropriately in bucket silos. A sample was collected from each replication for determination of the contents of DM, crude protein (CP), ether extract (EE), lignin, neutral and acid detergent fibers (NDF and ADF) and TDN. A fraction of the sample of silages from each treatment was compressed for extraction of the juice and determination of the silage quality. There was difference between the forms of cultivation for the dry matter production per hectare. The CEC with production of 11920.1 kg DM/ha did not differ from CB (8997.41 kg DM/ha) or CBCal (10452.10 kg DM/ha); however, it was superior to CBMac (8429.75 kg DM/ha) and to CBSty (8164.83 kg DM/ha). The contents of DM, CP, NDF, ADF, lignin and TDN did not differ between the silages from the different treatments. All the silages presented good quality with good fermentation patterns.

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Section: Resultssupporting

confidence: 85%

Intercropping of corn, brachiaria grass and leguminous plants: productivity, quality and composition of silages

et al. 2012

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“…Agrotec., Lavras, v.38, n.5, p.497-505, set./out., 2014 Corn silage CP average was lower (7.3%) than that of sunflower silage (9.3%) and there was no interaction effect between silage sources and glycerol levels. Possenti et al (2005) and Paziani et al (2009) found values between 6.7 to 9.4% CP for corn silage and Viana et al (2012) values between 11.6 and 12.1% for sunflower silage. The lower results for sunflower silage CP may be related to the variety and the vegetative stage of the plant at the time of cutting.…”

Section: Parametermentioning

confidence: 95%

“…Similarly, the corn silage NDF and ADF decreased with the addition of glycerol. Possenti et al (2005) evaluating the chemical composition of corn silages found levels of 63, 32 and 62 of %NDF, ADF and TDN, respectively. In the present study, the addition of 45% glycerol in corn silage provided NDF and ADF means of 25.3% and 4.3%, respectively, and for the NDT, levels of 88%.…”

Section: Parametermentioning

confidence: 99%

“…At all levels of added glycerol, pH values of corn silage were lower when compared to the sunflower silage, being more suitable for proper preservation of the material. The higher sunflower silage pH was probably due to the higher CP content (Table 4) that during protein decomposition can produce nitrogen compounds that neutralize lactic acid, causing higher pH (Possenti et al, 2005).…”

Section: Parametermentioning

confidence: 99%

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Glycerol inclusion levels in corn and sunflower silages

et al. 2014

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Due to the seasonal cycle of forage, the use of silage to feed animals provides nutrients throughout the year. However, its quality can be improved with the inclusion of additives and other products. Glycerol is a rich source of energy and present a high efficiency of utilization by animals. The purpose of this work was to evaluate the effect of glycerol inclusion on the chemical and fermentation characteristics of corn and sunflower silages. Two silage sources (maize and sunflower) were used and four levels of glycerol inclusion (0, 15, 30 and 45%) based on dry matter were carried out. The experimental design was completely randomized in a 2 x 4 factorial arrangement with five replications. The pH values and chemical composition of corn and sunflower silages were determined. In both silages there was increment of dry matter, non-fiber carbohydrates and total digestible nutrients (TDN) added to a reduction of crude protein, neutral detergent fiber and acid detergent fiber due to the glycerol inclusion. The corn silage required 45% glycerol to achieve the TDN level of the sunflower silage. The glycerol addition contributed to the increase in the nutritional value, offsetting loss of quality in the ensiling process. Index terms:Crude glycerin, biofuels, dry matter, fermentation quality, conserved forage. RESUMOEm decorrência do ciclo estacional das forrageiras, o uso de silagem na alimentação animal permite o suprimento de nutrientes durante o ano todo. No entanto, sua qualidade pode ser melhorada com a inclusão de aditivos e outros produtos. O glicerol constitui uma fonte rica em energia e apresenta alta eficiência de utilização pelos animais. Assim, neste trabalho, objetivou-se avaliar o efeito da inclusão de glicerol nas silagens de milho e de girassol sobre as características bromatológicas e fermentativas do material ensilado. Foram utilizadas duas fontes de silagem (milho e girassol) e quatro níveis de inclusão de glicerol (0, 15, 30 e 45%), com base na matéria seca. O delineamento experimental foi o inteiramente casualizado, em esquema fatorial (2x4) com cinco repetições. Determinaram-se os valores de pH e da composição bromatológica das silagens de milho e de girassol.Em ambas as silagens houve incremento nos teores de matéria seca, carboidratos não fibrosos e nutrientes digestíveis totais (NDT), somados à redução de proteína bruta, fibra em detergente neutro e fibra em detergente ácido com a inclusão de glicerol. A silagem de milho necessitou de 45% de inclusão de glicerol para alcançar o teor de NDT da silagem de girassol. A inclusão de glicerol nas silagens de milho e de girassol contribui com o aumento no valor nutritivo, compensando possíveis perdas de qualidade no processo de ensilagem.Termos para indexação: Glicerina bruta, biocombustíveis, matéria seca, qualidade de fermentação, forragem conservada.

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“…: 45.20%+8.54%) of potentially absorbed forage. For the purpose of comparison, 57.2% and 67.7% of sunflower and corn silage, respectively, is expected to be absorbed by ruminants (POSSENTI et al, 2005).…”

Section: Resultsmentioning

confidence: 99%

Forage production from fine branches and sprouts of native maniçoba

Rangel

Bakke

Silva

et al. 2017

SCA

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The growth and forage production of Manihot glaziovii were evaluated in plants growing in Itapetim-PE, Brazil via a complete block experimental design with four treatments (0, 33, 50, and 100% branch cutting intensity) to analyze increases in height and diameter. Furthermore, 3×2 factorial treatments (three branch cutting intensities: 33, 50, and 100% as well as two types of collected forage material: Branches with diameter < 10 mm and corresponding sprouts on the same branches 1 year after being cut) were analyzed for improvement in forage quantity and quality parameters. Height increase was affected (P < 0.05) by branch cutting intensity (0.29, 0.11, 0.43, and -0.04 m plant -1 , respectively, for 0, 33, 50, and 100% branch cutting intensities), while the increase in diameter was not affected (P > 0.05) (3.97 mm plant -1 was the overall mean increase). Cutting intensity×type of collected material, in combination, affected (P < 0.05) the quantity of the collected forage: means were considered similar (P > 0.05) in the first (branches) and second (sprouts) forage collection events for 33% (0.66 and 0.75 kg dry matter plant -1 , respectively) and 50% (1.40 and 1.73 kg dry matter plant -1 , respectively) cutting intensities; it decreased (P < 0.05) from the first to the second collection events, when 100% of branches and sprouts were harvested (3.37 and 2.06 kg dry matter plant -1 , respectively). The combined effects of aforementioned parameters were observed (P < 0.05) as interactions for some forage quality variables. Neutral detergent fiber content remained constant (P > 0.05) between 50.57 and 54.41% in forage containing branch and sprouts from 33 and 50% cutting intensities. It increased (P < 0.05) to 62.20% in sprouts from 100% cutting intensity. Acid detergent fiber content increased (P < 0.05) from around 38.4% to 46.63% in sprouts from plants subjected to 100% cutting intensity. The crude protein (between 8.72 and 10.08%) and ether extract (between 2.74 and 4.35%) contents were unaffected (P > 0.05) by these factors. Mineral matter content was higher (P < 0.05) in sprouts from all cutting intensities with 5.9% being the highest. Up to 50% of Manihot glaziovii branches with Ø < 10 mm and corresponding 1-year-old sprouts can be pruned with no negative effect on the quality and quantity (up to 1.73 kg dry matter plant -1 ) of the collected forage. Key words: Forage tree. Cutting intensity. Manihot glaziovii. Semiarid. ResumoO crescimento e a produção de forragem de Manihot glaziovii foram avaliados em plantas se desenvolvendo em Itapetim-PE, Brasil, através de um experimento no delineamento em blocos casualizados com 4 tratamentos (intensidades de corte dos ramos: 0, 33, 50 e 100%) para analisar o aumento em altura e diâmetro. Adicionalmente, foram considerados3x2 tratamentos fatoriais (três intensidades de corte dos ramos: 33, 50 e 100%, e dois tipos de material forrageiro coletado: Ramos com diâmetro < 10mm e respectivas rebrotas desses 1 ano após serem cortados) para analisar parâmetros de quant...

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Parâmetros bromatológicos e fermentativos das silagens de milho e girassol

Cited by 33 publications

References 3 publications

Intercropping of corn, brachiaria grass and leguminous plants: productivity, quality and composition of silages

Intercropping of corn, brachiaria grass and leguminous plants: productivity, quality and composition of silages

Glycerol inclusion levels in corn and sunflower silages

Forage production from fine branches and sprouts of native maniçoba

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