Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1186170
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dc.contributor.authorFURTADO, A. J.
dc.contributor.authorABDALLA FILHO, A. L.
dc.contributor.authorPERNA JUNIOR, F.
dc.contributor.authorPASQUINI NETO, R.
dc.contributor.authorSILVA, G. V. da
dc.contributor.authorLOBO, A. A. G.
dc.contributor.authorCOELHO, L. de M.
dc.contributor.authorBRUNO, J. F.
dc.contributor.authorBERNDT, A.
dc.contributor.authorPEDROSO, A. de F.
dc.contributor.authorMEDEIROS, S. R. de
dc.contributor.authorOLIVEIRA, P. P. A.
dc.contributor.authorRODRIGUES, P. H. M.
dc.date.accessioned2026-04-08T13:48:32Z-
dc.date.available2026-04-08T13:48:32Z-
dc.date.created2026-04-08
dc.date.issued2026
dc.identifier.citationAnimal Feed Science and Technology, v. 334, 116659, 2026.
dc.identifier.issn1873-2216
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1186170-
dc.descriptionWith global population growth, livestock production must be intensified with reduced environmental impact. The benefits of legume-grass intercropping are well-documented; however, no studies have evaluated ruminal fermentation and digestive kinetics. Pigeon pea, a legume intercropped with tropical grasses, can improve the nutritional value of forage, increasing digestive efficiency and mitigating methane emissions, while also reducing the need for nitrogen fertilization. Over two years, nine rumen-cannulated Nellore bulls were allocated to nine experimental paddocks (1.25 ha each; total area of 11.25 ha) in a randomized complete block design, with year as the blocking factor. Treatments followed a 3 × 2 factorial arrangement, consisting of three forage systems and two seasons (dry and rainy), with three paddock replicates per treatment: DEG, a degraded pasture; REC, recovered pasture fertilized with 200 kg of N; and MIX, mixture of legume-grass pasture. External and internal markers were used to determine dry matter intake (DMI). Grass and legume intake proportions were estimated using C3 and C4 carbon isotopes. The concentration and production of short-chain fatty acids, methane, and ammonia compounds were calculated using the ex-situ fermentation technique. Animals in DEG pasture presented a higher DMI of the supplement and higher relative energy loss as methane production, while a higher level of DM digestibility was observed in the MIX pasture. Higher ruminal concentrations of NH3-N were obtained for animals in the REC pasture. The lowest ruminal DM and NDF degradation rates were observed in the MIX pasture.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectEx-situ
dc.subjectIn-situ
dc.titleIntake, digestibility and rumen fermentation in Nellore bulls grazing degraded or recovered pastures of Urochloa ssp. or the grass intercropped with pigeon pea.
dc.typeArtigo de periódico
dc.subject.thesagroIngestão
dc.subject.thesagroDigestibilidade
dc.subject.thesagroFermentação
dc.subject.thesagroTouro
dc.subject.thesagroGado Nelore
dc.subject.thesagroPastagem
dc.subject.thesagroCapim Urochloa
dc.subject.thesagroGramínea
dc.subject.thesagroGuandu
dc.subject.thesagroCajanus Cajan
dc.subject.thesagroEfeito Estufa
dc.subject.thesagroMetano
dc.subject.nalthesaurusDigestibility
dc.subject.nalthesaurusRumen fermentation
dc.subject.nalthesaurusNellore
dc.subject.nalthesaurusBulls
dc.subject.nalthesaurusGrazing
dc.subject.nalthesaurusPastures
dc.subject.nalthesaurusUrochloa
dc.subject.nalthesaurusPigeon peas
dc.subject.nalthesaurusCajanus
dc.subject.nalthesaurusGreenhouse gases
dc.subject.nalthesaurusMethane
dc.subject.nalthesaurusTropical pastures
riaa.ainfo.id1186170
riaa.ainfo.lastupdate2026-04-08
dc.identifier.doihttps://doi.org/10.1016/j.anifeedsci.2026.116659
dc.contributor.institutionALTHIERES JOSÉ FURTADO, UNIVERSIDADE DE SÃO PAULO; ADIBE LUIZ ABDALLA FILHO, UNIVERSIDADE DE SÃO PAULO; FLÁVIO PERNA JUNIOR, UNIVERSIDADE DE SÃO PAULO; ROLANDO PASQUINI NETO, UNIVERSIDADE DE SÃO PAULO; GABRIELE VOLTARELI DA SILVA, UNIVERSIDADE DE SÃO PAULO; ANNELISE AILA GOMES LOBO, UNIVERSIDADE DE SÃO PAULO; LARISSA DE MELLO COELHO, UNIVERSIDADE DE SÃO PAULO; JAQUELINE FERNANDES BRUNO, UNIVERSIDADE DE SÃO PAULO; ALEXANDRE BERNDT, CPPSE; ANDRE DE FARIA PEDROSO, CPPSE; SERGIO RAPOSO DE MEDEIROS, CPPSE; PATRICIA PERONDI ANCHAO OLIVEIRA, CPPSE; PAULO HENRIQUE MAZZA RODRIGUES, UNIVERSIDADE DE SÃO PAULO.
Appears in Collections:Artigo em periódico indexado (CPPSE)

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