2017
DOI: 10.17523/bia.v74n3p195
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Cinética ruminal de forrageiras tropicais submetidas ou não a sistema de irrigação

Abstract: RESUMO: Avaliou-se a composição química e a cinética de fermentação ruminal de quatro espécies forrageiras submetidas ou não à irrigação. As espécies avaliadas foram Urochloa brizantha cv. MG5 (MG-5), Andropogon gayanus (Andropogon), Urochloa humidicola (Humidicola) e Digitaria umfolozi (Digitaria umfolozi). O experimento foi conduzido na fazenda experimental Campus Rural, São Cristóvão, SE. Observou-se diferença significativa (P<0,0001) nos teores de matéria seca (MS), matéria orgânica (MO), proteína bruta (P… Show more

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Cited by 3 publications
(4 citation statements)
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“…The DM content of a forage plant is a consequence of its momentary physiological stage in response to environmental conditions (Campos et al, 2016). Accordingly, low water availability in the soil reduces the amount of water in the plant tissues (Oliveira et al, 2017). This was evidenced by the higher DM contents recorded in the dry and transition periods and lower values found in the rainy season for all forage cultivars evaluated (Figure 2b).…”
Section: Chemical Compositionmentioning
confidence: 96%
See 1 more Smart Citation
“…The DM content of a forage plant is a consequence of its momentary physiological stage in response to environmental conditions (Campos et al, 2016). Accordingly, low water availability in the soil reduces the amount of water in the plant tissues (Oliveira et al, 2017). This was evidenced by the higher DM contents recorded in the dry and transition periods and lower values found in the rainy season for all forage cultivars evaluated (Figure 2b).…”
Section: Chemical Compositionmentioning
confidence: 96%
“…Fraction D corresponds to the degradation of fibrous carbohydrates (Oliveira et al, 2017). Thus, larger volumes of gas produced from the V fl fraction positively correlate with NDF and fiber quality in a forage plant, which can strongly indicate pasture quality.…”
Section: In Vitro Digestibility and Degradation Kineticsmentioning
confidence: 97%
“…Among the many existing ruminant-production models, animals raised on pasture stand out as the most practical and economic systems (Porto et al, 2017). However, in semi-arid environments, this activity is strongly affected by long periods of drought that compromise animal husbandry on pasture (Oliveira et al, 2017). Irregular rainfall distribution can lead to changes in forage plant growth (Magalhães et al, 2012).…”
Section: Introductionmentioning
confidence: 99%
“…Há indícios de que o fenômeno da dormência, em sementes de plantas forrageiras tropicais, é complexo e envolve vários fatores. SIMPSON (1990) 1988) ou a desestruturação do pericarpo pela imersão em ácido sulfúrico concentrado (GROF, 1968;McLEAN & GROF, 1968;JARK FILHO, 1976;ATALLA & TOSELLO, 1979;WlllTEMAN & MENDRA, 1982;CRUZ & TAKAKI, 1983;OLIVEIRA & MASTROCOLA, 1984;GOEDERT, 1985;ELLIS et al, 1985;WEST & MAROUSKY, 1989;FREITAS et al, 1990;BRASIL, 1992;GARCIA & CÍCERO, 1992e MAEDA, 1995. Tais fatos sugerem relações diretas dessas estruturas com a dormência, da mesma forma que a constatada em arroz (ROBERTS, 1982e SESHU & SORRELIS, 1986.…”
Section: Revisão De Literaturaunclassified