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Effects of the comminution rate and microbial contamination of particles in the rumen on in situ estimates of protein and amino acid digestion of expeller palm kernel and rapeseed meal

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Effects of the comminution rate and microbial contamination of particles in the rumen on in situ estimates of protein and amino acid digestion of expeller palm kernel and rapeseed meal

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dc.contributor.author Gonzalez, J. es_ES
dc.contributor.author Arroyo, J.M. es_ES
dc.contributor.author Mouhbi, R. es_ES
dc.contributor.author Guevara-Gonzalez, J. es_ES
dc.contributor.author Moya, V.J. es_ES
dc.contributor.author Piquer Querol, Olga es_ES
dc.date.accessioned 2016-01-13T11:07:02Z
dc.date.available 2016-01-13T11:07:02Z
dc.date.issued 2014-05
dc.identifier.issn 0022-5142
dc.identifier.uri http://hdl.handle.net/10251/59796
dc.description.abstract BACKGROUND Microbial corrected effective in situ estimates of ruminal undegraded fraction (RU) and intestinal effective digestibility (IED) of dry matter (DM), crude protein (CP) and amino acids (AA) of expeller palm kernel (EPK) and rapeseed meal (RSM) were measured on three rumen- and duodenum-cannulated wethers using N-15 labelling techniques and considering ruminal rates of comminution (k(c)) and outflow (k(p)) of particles. RESULTS The lack of k(c) and microbial correction overestimated the RU of DM by 4.91% (EPK) and 9.88% (RSM). The lack of this correction also overestimated in both feeds the RU of CP, individual and total (TAA) AA as well as the IED of DM, CP, TAA and most AA. RU estimates were higher for CP than for TAA, but the opposite was observed for IED. The intestinal digested fraction was higher for CP than for TAA: 17.4% (EPK) and 13.8% (RSM). Digestion led to large changes in the essential AA profile in both feeds. CONCLUSION The lack of k(c) and microbial correction as well as CP-based results leads to considerable overestimations in the protein use of both feeds. Digestion aggravates the lysine deficiency of EPK but has global positive effects in the absorbed profile of RSM. es_ES
dc.description.sponsorship This work has been supported by the CICYT-funded Project AGL 2006-08300. Analyses of 15N isotope ratios were performed at the Servicio Interdepartamental de Investigacion, Universidad Autonoma de Madrid, Spain. en_EN
dc.language Inglés es_ES
dc.publisher Wiley es_ES
dc.relation.ispartof Journal of the Science of Food and Agriculture es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Ruminal degradability es_ES
dc.subject Intestinal digestibility es_ES
dc.subject Protein es_ES
dc.subject Amino acids es_ES
dc.subject Sheep es_ES
dc.title Effects of the comminution rate and microbial contamination of particles in the rumen on in situ estimates of protein and amino acid digestion of expeller palm kernel and rapeseed meal es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1002/jsfa.6406
dc.relation.projectID info:eu-repo/grantAgreement/MEC//AGL2006-08300/ES/POTENCIACION DE LA RESPUESTA PRODUCTIVA EN RUMIANTES MEDIANTE EL EMPLEO DE PROTEINAS PROTEGIDAS Y EL ESTUDIO DE LA DISPONIBILIDAD DE AMINOACIDOS/ es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ciencia Animal - Departament de Ciència Animal es_ES
dc.description.bibliographicCitation Gonzalez, J.; Arroyo, J.; Mouhbi, R.; Guevara-Gonzalez, J.; Moya, V.; Piquer Querol, O. (2014). Effects of the comminution rate and microbial contamination of particles in the rumen on in situ estimates of protein and amino acid digestion of expeller palm kernel and rapeseed meal. Journal of the Science of Food and Agriculture. 94(7):1291-1298. https://doi.org/10.1002/jsfa.6406 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1002/jsfa.6406 es_ES
dc.description.upvformatpinicio 1291 es_ES
dc.description.upvformatpfin 1298 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 94 es_ES
dc.description.issue 7 es_ES
dc.relation.senia 259451 es_ES
dc.contributor.funder Ministerio de Educación y Ciencia es_ES
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