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dc.contributor.authorGomes, Raphael dos Santospt_BR
dc.contributor.authorOliveira, Tadeu Silva dept_BR
dc.contributor.authorPereira, José Carlospt_BR
dc.contributor.authorVieira, Ricardo Augusto Mendonçapt_BR
dc.contributor.authorSilva, Cássio José dapt_BR
dc.contributor.authorLeonel, Fernando de Paulapt_BR
dc.contributor.authorFernandes, Alberto Magnopt_BR
dc.contributor.authorAzevedo, Flavio Henrique Vidalpt_BR
dc.date.accessioned2017-12-07T05:18:46Z-
dc.date.available2017-12-07T05:18:46Z-
dc.date.issued2016-09pt_BR
dc.identifier.citationGOMES, Raphael dos Santos et al. Kinetics of digestion of low-quality forage grazed by beef cattle fed supplements containing increasing levels of rumen undegradable protein. Revista Brasileira de Zootecnia, Viçosa, v. 45, n. 9, p. 563-571, set. 2016. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000900563&lng=en&nrm=iso>. Acesso em: 21 dez. 2017. doi: http://dx.doi.org/10.1590/s1806-92902016000900009.pt_BR
dc.identifier.urihttp://repositorio.unb.br/handle/10482/30358-
dc.language.isoenpt_BR
dc.publisherSociedade Brasileira de Zootecniapt_BR
dc.rightsAcesso Abertopt_BR
dc.titleKinetics of digestion of low-quality forage grazed by beef cattle fed supplements containing increasing levels of rumen undegradable proteinpt_BR
dc.typeArtigopt_BR
dc.subject.keywordProteínapt_BR
dc.subject.keywordCapimpt_BR
dc.subject.keywordSuplementação nutricionalpt_BR
dc.rights.licenseRevista Brasileira de Zootecnia - This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0). Fonte: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000900563&lng=en&nrm=iso. Acesso em: 21 dez. 2017.-
dc.identifier.doihttp://dx.doi.org/10.1590/s1806-92902016000900009pt_BR
dc.description.abstract1This experiment was conducted to evaluate the degradation kinetics and microbial efficiency of beef cattle grazing on low-quality forage and receiving supplements with different levels of rumen undegradable protein (RUP). The animals grazed on palisade grass pasture solely or this pasture and supplement containing 40 or 60 g of RUP per 100 g of crude protein (CP). The degradation profiles of neutral detergent fiber, fiber carbohydrates, and neutral detergent insoluble protein were interpreted kinetically by using a decreasing logistic model. Treatments (no supplement, or RUP at 40 or 60 g−1 100 g CP) did not affect rumen fill; however, the increase in the indigestible fiber carbohydrate fraction that occurred at the expense of the digestible fiber carbohydrate fraction resulted in a greater rumen fill effect. The palisade grass showed a significant proportion of its nitrogen in the form of slowly degradable protein as neutral detergent insoluble protein, which amounted to 26 g per 100 g CP. Supplementation with 40 g of RUP per 100 g CP decresead the indigestible fraction of the low-quality forage. However, the absence of a rumen-fill effect demonstrates that the additional supply of nutrients contributes greatly to increasing growth efficiency and use of the available energy from the forage by the ruminal microorganisms.-
dc.description.unidadeFaculdade de Agronomia e Medicina Veterinária (FAV)-
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