Degradability Model
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Performance and metabolite profile of dairy cows fed tropical grasses and concentrates containing crude protein with low or high degradability
ABSTRACT Ten Holstein-Zebu crossbred cows distributed into two simultaneous Latin squares (5 × 5) as a 2 × 2 factorial arrangement formed by chopped sugarcane or elephant grass silage, both with high or low protein degradability supplements and a corn silage as a control treatment, were compared using orthogonal contrasts. The studied variables were the pe
R. Bras. Zootec.. Publicado em: 2016-09
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2. Rumen degradation and passage kinetics of silage made from different corn hybrids
The objective of the present study was to evaluate the parameters related to the digestion of the fiber from silages of four corn hybrids (BX1280, SHS4070, 2B433, and DKB390) developed for silage production. Four rumen-cannulated castrated Holstein × Zebu crossbred cattle with approximate initial weight of 400 kg were distributed in a Latin square design. T
R. Bras. Zootec.. Publicado em: 2014-10
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3. Degradation kinetics of calcium polyphosphate bioceramic: an experimental and theoretical study
In this work, the degradation kinetics of calcium polyphosphate bioceramic was studied. Liquid state31P nuclear magnetic resonance (NMR), X-ray diffraction (XRD) and scanning electron microscope (SEM) were used to characterize the product. The in vitro degradation test was carried out at 37 ºC for up to 48 hours for both the simulation solution and the extr
Materials Research. Publicado em: 2009
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4. Estimação dos parâmetros no modelo para degradabilidade in situ de Mertens e Loften
The aim of this study is to evaluate the behavior of the parameters of the degradation model proposed by Mertens & Loften (1980) fitted to the results of a rehearsal of degradability in situ. In the experiment, we evaluate the potentially degradable residue of neutral detergent fiber (NDF) of coastcross grass (Cynodon dactylon x Cynodon nlemfunensis) cut at
Ciência e Agrotecnologia. Publicado em: 2008-10
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5. Total and Cecal Digestion of Roughages in Horses. / Digestão Total e Cecal de Alimentos Volumosos em Eqüinos.
This work aimed to evaluate digestibility and degradability of nutrients, and kinetics of passage in horses fed with forages using mobile bag and in situ cecal digestion. Two digestion trials were carried out and seven forages were used, lucerne (Medicago sativa), peanut (Arachis pintoi), Desmodium ovalifolium, Stylosanthes guianensis, Cajanus cajan, Macropt
Publicado em: 2007
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6. Performance of Nellore cattle fed individualy or in group, nutrient requirements and proteic evaluation of feeds for ruminants / Desempenho de bovinos Nelore alimentados individualmente ou em grupo, exigências nutricionais e avaliação protéica de alimentos para ruminantes
The present work was developed based on four experiments. The two firsts were conducted aiming to evaluate the fecal dry matter production using total fecal collection or estimated by chromic oxide (Cr2O3), titanium dioxide (TiO2), isolated, purified and enriched lignin of Eucalyptus grandis (LIPE), indigestible neutral and acid detergent fiber (NDFi and ADF
Publicado em: 2007
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7. Evolução da biodegradabilidade da matéria orgânica em um sistema de lagoas de estabilização
Waste stabilization ponds (WSP) have been widely used for sewage treatment in hot climate regions because they are economic and environmentally sustainable. In the present study a WSP complex comprising a primary facultative pond (PFP) followed by two maturation ponds (MP-1 and MP-2) was studied, in the city of Natal-RN. The main objective was to study the b
Publicado em: 2006
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8. EstimaÃÃo do Tempo de LatÃncia em um Modelo NÃo-linear de Degradabilidade in situ / Parameters estimation in the model for in situ degradability of Mertens and Loften
Ojetivou-se avaliar o comportamento dos parÃmetros do modelo de degradaÃÃo proposto por Mertens &Loften (1980) ajustado aos resultados de um ensaio de degradabilidade in situ. o experimento avaliou o resÃduo potencialmente degradÃvel da fibra em detergente neutro (FDN) da gramÃnea coast-cross (Cynodon dactylon x Cynodon nlemfunensis) submetida a trÃs
Publicado em: 2005
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9. Sistema silvipastoril e monocultivo de braquiária para recria de novilhas mestiças: disponibilidade e consumo de forragem, ganho de peso e validação do CNCPS.
Four trials were caried out to evaluate growing crossbred holstein x zebu heifers on silvopastoral system (SPS) and signalgrass (Brachiaria decumbens Stapf.) monoculture (SGM). On the first trial were evaluated dry matter avalability and chemical composition and crossbred heifers performance on silvopastoral system and signalgrass monoculture, in rainy seaso
Publicado em: 2005
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10. Determinants of degradability among sugarcane clones in bovine rumen / Determinantes da degradabilidade entre clones de cana-de-aÃÃcar no rÃmen de bovinos
The objective of this work was to evaluate the variability of nutritive value among sugarcane clones, to estimate the correlation between plant digestibility and productivity, and to define which agronomical and chemical traits would be most important as determinants of nutritive value. Twenty sugarcane industrial clones were evaluated in a completely random
Publicado em: 2004