Kinetics of digestion of low-quality forage grazed by beef cattle fed supplements containing increasing levels of rumen undegradable protein

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorGomes, Raphael dos Santos-
Autor(es): dc.creatorOliveira, Tadeu Silva de-
Autor(es): dc.creatorPereira, José Carlos-
Autor(es): dc.creatorVieira, Ricardo Augusto Mendonça-
Autor(es): dc.creatorSilva, Cássio José da-
Autor(es): dc.creatorLeonel, Fernando de Paula-
Autor(es): dc.creatorFernandes, Alberto Magno-
Autor(es): dc.creatorAzevedo, Flavio Henrique Vidal-
Data de aceite: dc.date.accessioned2024-10-23T16:13:02Z-
Data de disponibilização: dc.date.available2024-10-23T16:13:02Z-
Data de envio: dc.date.issued2017-12-07-
Data de envio: dc.date.issued2017-12-07-
Data de envio: dc.date.issued2016-09-
Fonte completa do material: dc.identifierhttp://repositorio.unb.br/handle/10482/30358-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/s1806-92902016000900009-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/902734-
Descrição: dc.descriptionThis 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.-
Descrição: dc.descriptionFaculdade de Agronomia e Medicina Veterinária (FAV)-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherSociedade Brasileira de Zootecnia-
Direitos: dc.rightsAcesso Aberto-
Direitos: dc.rightsRevista 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.-
Palavras-chave: dc.subjectProteína-
Palavras-chave: dc.subjectCapim-
Palavras-chave: dc.subjectSuplementação nutricional-
Título: dc.titleKinetics of digestion of low-quality forage grazed by beef cattle fed supplements containing increasing levels of rumen undegradable protein-
Tipo de arquivo: dc.typelivro digital-
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