Fracionamento de carboidratos e de proteína das silagens de diferentes forrageiras

Viana, Pablo Teixeira; Pires, Aureliano José Vieira; Oliveira, Leandro Barbosa de; Carvalho, Gleidson Giordano Pinto de; Ribeiro, Lucinéia de Fátima Chasko; Chagas, Daiane Maria Trindade; Filho, Carlos Souza Nascimento; Carvalho, Aline Oliveira

doi:10.1590/s1516-35982012000200009

Cited by 20 publications

(20 citation statements)

References 17 publications

(26 reference statements)

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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%

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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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Section: Parametermentioning

confidence: 95%

“…The tropical regions are characterized by a high number of forage species with potential for silage. Some options are corn (Zea mays), sorghum (Sorghum bicolor) and sunflower (Helianthus annuus) (Oliveira et al, 2010;Viana et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Glycerol inclusion levels in corn and sunflower silages

et al. 2014

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“…Corn has favorable characteristics for silage production because it offers a good yield of dry matter (DM) per hectare and high nutritional value (Viana et al, 2012). However, the technology used in corn silage demands considerable costs in technical and financial resources (Sousa et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…However, the technology used in corn silage demands considerable costs in technical and financial resources (Sousa et al, 2009). Sunflower silage is a potential alternative, which can replace corn in areas where weather conditions or time of year limits the growth of the corn crop (Viana et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Performance of lactating dairy cows fed sunflower or corn silages and concentrate based on citrus pulp or ground corn

et al. 2017

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-This study aimed to evaluate the effect of diets containing sunflower or corn silages and concentrate based on citrus pulp or ground corn on intake, apparent digestibility, feeding behavior, microbial protein production, and production, composition, and fatty acid profile of milk from dairy cows. Eight multiparous lactating Holstein cows (586±61 kg live weight; 25.0±4.0 kg daily milk yield at 80 to 120 days in milk) were randomly assigned to a double 4 × 4 Latin square design with a 2 × 2 factorial array. The experimental diets were: sunflower silage + citrus pulp-based concentrate; sunflower silage + ground corn-based concentrate; corn silage + citrus pulp-based concentrate; and corn silage + ground corn-based concentrate. The dry matter intake was highest for diets containing sunflower silage and lowest for diets with citrus pulp. Sunflower silage provided the highest intakes of crude protein, neutral detergent fiber, and ether extract. Except for the ether extract, the type of forage and carbohydrate did not influence the apparent nutrient digestibility. The forage and carbohydrate sources did not influence the feed eating time, but animals fed sunflower silage showed decreased rumination time and chewing activity. The microbial protein production was not altered with the diets. No differences were observed for milk production or composition, except for the milk urea nitrogen and lactose concentration. The type of forage influenced the milk fatty acid profile, to which corn silage presented higher values for fatty acids up to a 17-carbon chain length. The inclusion of sunflower silage and citrus pulp, compared with corn silage and ground corn, alters dry matter intake and ingestive behavior, but maintains milk production and composition with satisfactory characteristics of the milk fatty acid profile, providing an alternative feed for dairy cows.

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“…The fit between fermentation protein and carbohydrates (for the same rate of degradation) promotes maximum microbial synthesis and enhances the metabolizable protein (VIANA et al, 2012). However, robust technical and nutritional foundations should be applied, and a truly viable economic alternative should be ensured, as the ingredients that are usually used undergo price variations.…”

Section: Introductionmentioning

confidence: 99%

Ruminal degradation of dry matter and neutral detergent fiber of banana peel treated with limestone

et al. 2016

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This study aimed to evaluate the kinetics of dry matter degradation and neutral detergent fiber of banana peel treated with limestone. The banana peel has been acquired from a candy manufacturer that after washing with chlorinated water to 1% and pulp removal was discarded. The banana peel in nature was treated with 1, 2, 3 and 4% of limestone in the natural matter, homogenized and pre-dried in the sun for 120 hours. The experiment was conducted in a completely randomized experimental design, with five treatments (0 (control), 1, 2, 3 and 4% inclusion of limestone) with 3 repetitions. The dry matter potential degradability, showed no difference (P>0.05) in the levels compared to the control with an average of 67.58%. The insoluble degradation fraction rate of dry matter and the fiber fraction did not differ (P> 0.05) between levels and control. In relation to effective degradability of neutral detergent fiber, there was an increase of 3.47% for each percentage unit increased limestone. In relation to the ruminal degradation parameters of dry matter and neutral detergent fiber is not recommended the utilization of limestone as an additive in the treatment of banana peel. Key words: Feed evaluation, coproducts, degradability, calcium oxide, ruminants ResumoObjetivou-se avaliar a cinética de degradação da matéria seca e fibra em detergente neutro da casca de banana tratada com calcário. A casca de banana foi adquirida de uma indústria de doces que após lavagem com água clorada a 1% e retirada da polpa, era descartada. A casca de banana in natura foi tratada com 1, 2, 3 e 4% de calcário na matéria natural, homogeneizadas e pré-seca ao sol durante 120 horas. O experimento foi realizado em um delineamento experimental inteiramente ao acaso, sendo cinco tratamentos (0 (controle), 1, 2, 3 e 4% de inclusão de calcário) com 3 repetições. A degradabilidade potencial da matéria seca, não apresentou diferença (P>0,05) dos níveis em relação ao controle com média de 67,58%. A taxa de degradação da fração insolúvel da matéria seca e da fração fibrosa não diferiu (P>0,05) entre níveis e o controle. Em relação á degradabilidade efetiva da fibra em detergente neutro, houve incremento de 3,47% para cada unidade percentual de calcário aumentada. Em relação aos parâmetros da degradação ruminal da matéria seca e da fibra em detergente neutro, recomenda-se a utilização 4% de inclusão de calcário na matéria natural da casca de banana.

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Fracionamento de carboidratos e de proteína das silagens de diferentes forrageiras

Cited by 20 publications

References 17 publications

Glycerol inclusion levels in corn and sunflower silages

Glycerol inclusion levels in corn and sunflower silages

Performance of lactating dairy cows fed sunflower or corn silages and concentrate based on citrus pulp or ground corn

Ruminal degradation of dry matter and neutral detergent fiber of banana peel treated with limestone

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