Cinética ruminal da fração fibrosa de volumosos para ruminantes

Muniz, Elaine Barbosa; Mizubuti, Ivone Yurika; Pereira, Elzânia Sales; Pimentel, Patrícia Guimarães; Ribeiro, Edson Luiz de Azambuja; Pinto, Andréa Pereira

doi:10.1590/s1806-66902012000300025

Cited by 26 publications

(17 citation statements)

References 17 publications

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“…The lower values obtained for the degradable fraction of NDF, in relation to the other fractions, can be related to the elephant grass cutting age used in the ensiling process (82 days), since tropical grasses reach early phenological maturity with increase of support structures represented by fiber carbohydrates and lignin that reduce the cell wall availability and the percentage of cellular content, interfering with the degradation of DM and NDF (Muniz et al, 2012). The use of lower cutting ages in elephant grass silage may be advantageous for NDF contents.…”

Section: Resultsmentioning

confidence: 96%

<b>Ruminal degradation of elephant grass silages added with faveira pods

Garcez

Santos

Nicolini

et al. 2018

Acta Sci. Anim. Sci.

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The objective of this study was to evaluate in situ ruminal degradability of elephant grass silages with addition of 8, 16 and 24% of faveira pods in experimental silos of 100x50 mm, equipped with bunsen valves. The content of crude protein (cp) and neutral detergent fiber (ndf) were determined on a dry matter basis. To evaluate the in situ degradability of dm, cp and ndf, nylon bags containing 4 g sample were incubated in the rumen of three fistulated cattle for 6, 24 and 72h. The dm and cp content of elephant grass silages increased (p < 0.05) from 8% inclusion associated with a higher concentration of constituents in faveira pods (77.25 and 9.61% dm). The ndf fraction reduced 10.91% (p < 0.05) when adding 24% pods. The potential degradation (pd) of dm and cp increased with inclusion of faveira pods, with 75.97 and 95.21%, respectively, for the level of 24%. There was increased potentially degradable fraction (bp) of ndf by 7.07% with inclusion of 24% faveira pods, as well as a reduced colonization time (lag) from 3.81 to 3.44 hours. The addition of up to 24% faveira pods to elephant grass silages improves rumen microbial degradation, and it is indicated this level of addition to obtain better quality silage.

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Section: Resultsmentioning

confidence: 96%

<b>Ruminal degradation of elephant grass silages added with faveira pods

Garcez

Santos

Nicolini

et al. 2018

Acta Sci. Anim. Sci.

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“…Animals fed DC or FC had lower CTGI and higher carcass yield. Differences observed for CTGI depend on the NDF intake, since diets containing higher percentage of NDF increase food residence time in the gastrointestinal tract (Muniz et al, 2012), even after fasting imposed to animals before slaughter.…”

Section: Resultsmentioning

confidence: 97%

<b>Fresh or dehydrated spineless cactus in diets for lambs

Andrade

Batista

Carvalho

et al. 2016

Acta Sci. Anim. Sci.

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ABSTRACT. The objective was to evaluate the effect of partial or total replacement of Tifton 85 hay with fresh or dehydrated spineless cactus on performance and body weight components of sheep. Thirty hair lambs, with 19 kg ± 0.35 kg initial weight, were randomly divided into five treatments, namely: Tifton 85 Hay (HA); Tifton 85 Hay + fresh spineless cactus (HAFC); Tifton 85 Hay + dehydrated spineless cactus (HADC); fresh spineless cactus (FC); dehydrated spineless cactus (DC). In addition to the spineless cactus and hay, the complete mixture contained soybean meal, mineral salt and limestone in all treatments. Animals were confined for 75 days and then slaughtered. The weight of body components was recorded. Dry matter intake, total digestible nutrients intake and voluntary water intake were higher (p < 0.05) for the DC and HADC treatments. The average daily gain was 118 g day -1and body weight at slaughter of 25.8 kg were not influenced (p > 0.05) by treatments. The cold carcass weight, rib eye area, weight and yield of the skin, liver, kidney and large intestine were higher (p < 0.05) for the DC and HADC treatments. Partial or total replacement of Tifton 85 hay with fresh or dehydrated spineless cactus, in complete diets for sheep, increases the weight of the cold carcass and non-carcass components.Keywords: cacti, body weight components, cactus meal.Palma forrageira in natura ou desidratada na dieta de ovinos RESUMO. Objetivou-se avaliar o efeito da substituição parcial ou total do feno de Tifton 85 por palma forrageira in natura ou desidratada sobre o desempenho e componentes do peso corporal de ovinos. Foram distribuídos aleatoriamente 30 cordeiros deslanados, com peso vivo inicial de 19 kg ± 0,35 kg, em cinco tratamentos, a saber: feno de Tifton 85 (FE); feno de Tifton 85 + palma in natura (FEPA); feno de Tifton 85 + palma desidratada (FEPD); palma in natura (PA); palma desidratada (PD). Além da palma e feno ofertou-se, na forma de mistura completa, farelo de soja, sal mineral e calcário em todos os tratamentos. Os animais foram mantidos confinados durante 75 dias; decorridos esse período foram abatidos e tiveram os pesos dos componentes corporais registrados. O consumo de matéria seca, nutrientes digestíveis totais e ingestão voluntária de água foram maiores (p < 0,05) para os tratamentos PD e FEPD. O ganho médio diário foi de 118 g dia -1 e o peso corporal ao abate de 25,8 kg e não foram influenciados (p > 0,05) pelos tratamentos. O peso de carcaça fria e área de olho de lombo foram menores (p < 0,05) para dieta FE. A substituição parcial ou total do feno de Tifton 85 por palma forrageira (in natura ou desidratada) melhora o desempenho e as características de carcaça de ovinos.Palavras-chave: cactácea, componentes do peso corporal, farelo de palma.

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“…Esse resultados foram semelhantes aos obtidos por Muniz et al (2012) para palma forrageira com 39,6; 24,0 e 17,2% para DE a 2, 5 e 8% respectivamente. 79,01 *a = fração solúvel ou rapidamente degradável (%); b = fração insolúvel ou lentamente degradável (%); c = taxa de degradação de b (%/h).…”

Section: Resultsunclassified

Nutritional value of the rhizome of macambira (Bomelia laciniosa) fresh or subjected to burning by fire

Garcez

Filho

Alves

et al. 2015

AVB

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RESUMO -Objetivou-se avaliar o valor nutritivo e a cinética da degradação ruminal in situ do rizoma da macambira in natura ou submetida à queima pelo fogo. Determinou-se os teores de matéria seca (MS), e com base na MS, a proteína bruta (PB), fibra em detergente neutro (FDN), fibra em detergente ácido (FDA), matéria mineral (MM), extrato etéreo (EE), energia bruta (EB), hemicelulose (HEM), celulose (CEL), lignina (LIG) e a degradabilidade in situ da MS, PB e FDN nos tempos 6, 24 e 72 horas. Verificou-se menor teor de MS na macambira in natura (61,3%) em relação à submetida a queima (66,9%), o que está relacionado à perda de umidade provocada pelo aquecimento. Os teores de fibra em detergente neutro (53,5% in natura e 58,4% queimada) e em detergente ácido (22,9 e 34,7%, respectivamente) foram elevados na macambira submetida à queima. Para a degradabilidade in situ houve redução nos valores de degradação potencial (DP) e efetiva (DE) pelo processo de queima, além de redução nas frações solúvel (a) e potencialmente degradável (b). A ação da queima à macambira promove aumento dos constituintes da parede celular e reduz à cinética de degradação da MS, PB e FDN, porém com potencial de melhoria da qualidade da fibra, quanto à degradação potencial deste constituinte. Assim, não se indica a realização da queima da macambira antes do fornecimento aos animais visando melhoria no valor nutritivo. Palavras-Chave: cactáceas; composição química; degradação.ABSTRACT -This study aimed to assess the nutritional value and the kinetics of in situ ruminal degradation of the rhizome of macambira fresh or subjected to burning by fire. We determined the dry matter (DM), and DM basis, the crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), mineral matter (MM), ether extract (EE), gross energy (GE), hemicellulose (HEM), cellulose (CEL), lignin (LIG) and in situ degradability of DM, CP and NDF in the times 6, 24 and 72 hours. The DM content of macambira fresh (61.3%) was lower compared to burned macambira (66.9%) due to loss of moisture caused by heating. The fiber neutral detergent (53.5% fresh and 58.4% burned) and acid detergent (22.9 and 34.7%, respectively) were higher in macambira subjected to burning For the in situ degradability decreased the values of potential degradation (PD) and effective (DE) when treatment with fire, and reduction in soluble fractions (a) and potentially degradable (b). The action of burning the macambira promotes increased cell wall constituents and reduces the degradation kinetics of DM, CP and NDF, but with potential for improving the quality of the fiber, as the potential degradation of this constituent. So, do not indicate the completion of burning macambira before the animal feeding for improvement in nutritional value.

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Cinética ruminal da fração fibrosa de volumosos para ruminantes

Cited by 26 publications

References 17 publications

<b>Ruminal degradation of elephant grass silages added with faveira pods

<b>Ruminal degradation of elephant grass silages added with faveira pods

<b>Fresh or dehydrated spineless cactus in diets for lambs

Nutritional value of the rhizome of macambira (Bomelia laciniosa) fresh or subjected to burning by fire

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