Influence of condensed tannins from Brazilian semi-arid legumes on ruminal degradability, microbial colonization and ruminal enzymatic activity in Saanen goats

Página do item simplificado
dc.contributor.authorGuimaraes-Beelen, P. M.
dc.contributor.authorBerchielli, T. T.
dc.contributor.authorBeelen, R.
dc.contributor.authorMedeiros, A. N.
dc.contributor.institutionUniversidade Federal da Paraíba (UFPB)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Fed de Alagoas
dc.date.accessioned2014-05-20T15:23:09Z
dc.date.available2014-05-20T15:23:09Z
dc.date.issued2006-01-01
dc.description.abstractThe present study aimed at determining the influence of condensed tannins present in the Brazilian legume species Mimosa hostilis, Mimosa caesalpinifolia and Bauhinia cheilantha on ruminal degradability, microbial colonization and enzymatic activity. Polyethylene glycol (PEG) was used to reduce the astringency and concentration of soluble condensed tannins. Four ruminally-cannulated Saanen goats (60 +/- 8 kg BW) were fed, in two experimental periods, with a hay diet based on the studied legumes treated or non-treated with PEG. Voluntary intake, microbial colonization, DM, CP, NDF, and ruminal degradability of PEG treated and non-treated forage leaves, as well as pH, ammonia and 1,4 P-endoglucanase activity of the rumen content were evaluated. Astringency and soluble tannin concentration of the studied legumes were reduced by approximately 70% and 50%, respectively, with PEG treatment. Average DM intake was higher for the treated diet (16.76 g DM/kg BW/day against 13.06 g DM/kg BW/day). Percentile values for degradation parameters and for potential and effective degradabilities of DM, CP and NDF were also affected by the tannins, but at different intensities. Electron microscopic observations of ruminally-incubated legume leaves showed a more effective microbial colonization of PEG-treated leaves for all legume species. A decrease in pH and an increase in ammonia concentration and in endoglucanase activity in the ruminal content was also observed for PEG-treated diets at all sampling periods. Condensed tannins of the studied legume species have influenced the adhesion conditions, colonization and enzymatic activity of the microbial ecosystem, and consequently the ruminal degradation of the different dietary fractions. For this reason, the reduction in condensed tannin would be of great importance to improve the nutrition of ruminant feeding of these species. (c) 2005 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Fed da Paraiba, Dept Anim Sci, BR-58397000 Areia, PB, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Anim Sci, BR-14870000 Jaboticabal, SP, Brazil
dc.description.affiliationUniv Fed de Alagoas, Dept Anim Sci, BR-5710000 Rio Largo, AL, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Anim Sci, BR-14870000 Jaboticabal, SP, Brazil
dc.format.extent35-44
dc.identifierhttp://dx.doi.org/10.1016/j.smallrumres.2005.01.007
dc.identifier.citationSmall Ruminant Research. Amsterdam: Elsevier B.V., v. 61, n. 1, p. 35-44, 2006.
dc.identifier.doi10.1016/j.smallrumres.2005.01.007
dc.identifier.issn0921-4488
dc.identifier.lattes5317385915649516
dc.identifier.urihttp://hdl.handle.net/11449/33994
dc.identifier.wosWOS:000234283900005
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofSmall Ruminant Research
dc.relation.ispartofjcr0.974
dc.relation.ispartofsjr0,485
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectrumen microbial colonizationpt
dc.subjectastringencypt
dc.subjectendoglucanase activitypt
dc.subjectnative legumespt
dc.subjectBrazilian semi-arid regionpt
dc.subjectSaanen goatspt
dc.titleInfluence of condensed tannins from Brazilian semi-arid legumes on ruminal degradability, microbial colonization and ruminal enzymatic activity in Saanen goatsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes5317385915649516
unesp.author.orcid0000-0002-8026-7324[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

Arquivos

Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções

Artigos - Zootecnia - FCAV