2009
DOI: 10.1590/s1516-35982009000900024
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Degradação in vitro da fibra em detergente neutro de forragem tropical de alta qualidade em função da suplementação com proteína e/ou carboidratos

Abstract: RESUMO -Objetivou-se avaliar o efeito da suplementação proteica e/ou com carboidratos sobre a degradação ruminal da fibra em detergente neutro (FDN) de forragem tropical de alta qualidade. No experimento, foi simulada a suplementação de bovinos em terminação sob pastejo durante o período chuvoso (70% de forragem e 30% de concentrado, com base na matéria seca). Como forragem basal utilizou-se amostra de capim-elefante (Pennisetum purpureum Schum.) cortado aos 21 dias de rebrotação. O concentrado utilizado no tr… Show more

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Cited by 27 publications
(37 citation statements)
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“…The authors observed a decrease in the degradability of DM and NDF at lower pH values. Likewise, Costa et al (2009) evaluated the in vitro degradation of elephant grass supplemented with different sources of carbohydrate and proteins, demonstrating a decrease in the degradation rate of NDF that was attributed to increased amounts of soluble carbohydrates. Costa et al (2008) also found a decrease in the degradation of fiber from low-quality tropical forages that were supplemented with starch.…”
Section: Discussionmentioning
confidence: 99%
“…The authors observed a decrease in the degradability of DM and NDF at lower pH values. Likewise, Costa et al (2009) evaluated the in vitro degradation of elephant grass supplemented with different sources of carbohydrate and proteins, demonstrating a decrease in the degradation rate of NDF that was attributed to increased amounts of soluble carbohydrates. Costa et al (2008) also found a decrease in the degradation of fiber from low-quality tropical forages that were supplemented with starch.…”
Section: Discussionmentioning
confidence: 99%
“…Thus, these food sources provide the nutrient supply for most of the maintenance requirements of animal production (PAULINO et al, 2006). However, during the dry season as well as in more intensive grazing animal production systems, the forages may be supplemented with ingredients rich in nonfiber carbohydrates (NFC), which, while providing rapid fermentation energy to the rumen microflora, can have adverse effects on the ruminal ecosystem and fiber digestion (COSTA et al, 2009). …”
Section: Introductionmentioning
confidence: 99%
“…Isto pode ser em virtude da forma como os suplementos afetam o ambiente ruminal, variando em função da origem química dos carboidratos presentes no suplemento (CostA et al, 2009).…”
Section: Resultsunclassified