Nutritional performance and metabolic characteristics of cattle fed tropical forages with protein and starch supplementation

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorFranco, Marcia O.-
Autor(es): dc.creatorDetmann, Edenio-
Autor(es): dc.creatorBatista, Erick D.-
Autor(es): dc.creatorRufino, Luana M. A.-
Autor(es): dc.creatorPaulino, Mario F.-
Autor(es): dc.creatorValadares Filho, Sebastião C.-
Data de aceite: dc.date.accessioned2026-02-09T11:42:15Z-
Data de disponibilização: dc.date.available2026-02-09T11:42:15Z-
Data de envio: dc.date.issued2022-05-25-
Data de envio: dc.date.issued2022-05-25-
Data de envio: dc.date.issued2021-01-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br//handle/1/50022-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1145583-
Descrição: dc.descriptionEffects of protein supplementation, with and without starch supplementation, on nutritional performance and metabolic characteristics of cattle fed low- and medium-quality tropical forages were evaluated using 4 cannulated steers distributed according to a 4 × 4 Latin square. Experimental periods were divided into two subperiods. In the first subperiod, two animals received low-quality hay and two animals received medium-quality. Supplementation schemes were evaluated in the second subperiod: low-quality hay with protein (300 g of crude protein – CP/d); low-quality hay with protein (300 g CP/d) and starch (225 g/d); medium-quality hay with protein (300 g CP/d); and medium-quality hay with protein (300 g CP/d) and starch (225 g/d) supplementation. Without supplementation, medium-quality forage provided higher intake, digestibility, nitrogen balance (NB) and efficiency of nitrogen utilization (EFNU). Comparing subperiods, supply of supplements depressed medium-quality forage intake, but did not affect low-quality forage intake. Supplementation increased NB, EFNU and serum concentration of IGF1 in animals fed low-quality forage. Protein supplementation increases nitrogen retention in animals, an effect attributed mainly to anabolic stimuli. However, this effect is more prominent when animals are fed low-quality forages. No positive impact on animal metabolism was obtained with combination of supplemental protein and starch.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherAcademia Brasileira de Ciências-
Direitos: dc.rightsacesso aberto-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
???dc.source???: dc.sourceAnais da Academia Brasileira de Ciências-
Palavras-chave: dc.subjectBrachiaria decumbens-
Palavras-chave: dc.subjectDigestibility-
Palavras-chave: dc.subjectFiber-
Palavras-chave: dc.subjectIGF-1-
Palavras-chave: dc.subjectLow-quality hay-
Palavras-chave: dc.subjectNitrogen balance-
Palavras-chave: dc.subjectPlantas forrageiras tropicais-
Palavras-chave: dc.subjectNutrição animal-
Palavras-chave: dc.subjectBovinos - Digestibilidade-
Palavras-chave: dc.subjectFibras-
Palavras-chave: dc.subjectFeno de baixa qualidade-
Palavras-chave: dc.subjectBalanço nitrogenado-
Título: dc.titleNutritional performance and metabolic characteristics of cattle fed tropical forages with protein and starch supplementation-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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