Estimating real time individual lysine and threonine requirements in precision-fed pigs

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dc.contributor.authorRemus, A. [UNESP]
dc.contributor.authorMethot, S.
dc.contributor.authorHauschild, L. [UNESP]
dc.contributor.authorLetourneau-Montminy, M. P.
dc.contributor.authorPomar, C. [UNESP]
dc.contributor.authorChizzotti, M. L.
dc.contributor.institutionAgr & Agri Food Canada
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Laval
dc.date.accessioned2021-06-25T11:51:39Z
dc.date.available2021-06-25T11:51:39Z
dc.date.issued2019-01-01
dc.description.abstractThis study aimed to estimate independently real-time lysine (Lys) and threonine (Thr) requirements in growing-finishing pigs. Ninety-five pigs were randomly assigned to treatments according to 2x5 factorial arrangement with 2 amino acids (AA; Lys, and Thr) and 5 levels of incorporation (60, 80, 100, 120 and 140% of the estimated requirements) as main factors. Lysine and Thr requirements were estimated daily in real time during a 21-day trial. Data was analyzed using LOESS regression and the surface response methodology. The point of maximum response was obtained through a canonical analysis of the adjusted response surface and was found to be saddle-shaped, possibly due to the variability within AA requirements among individual pigs and thus pointed for several possible optimal Thr/Lys combinations. In conclusion, the non-unique response of the regression model indicates that there is a large between-animal variation in protein deposition (PD) response to Lys and Thr supply.en
dc.description.affiliationAgr & Agri Food Canada, Sherbrooke Res & Dev Ctr, Sherbrooke, PQ J1M 0C8, Canada
dc.description.affiliationUniv Sao Paulo State UNESP, Sch Agr & Veterinarian Sci FCAV, Dept Anim Sci, BR-14883108 Sao Paulo, SP, Brazil
dc.description.affiliationUniv Laval, Dept Sci Anim, Quebec City, PQ G1V 0A6, Canada
dc.description.affiliationUnespUniv Sao Paulo State UNESP, Sch Agr & Veterinarian Sci FCAV, Dept Anim Sci, BR-14883108 Sao Paulo, SP, Brazil
dc.format.extent451-452
dc.identifierhttp://dx.doi.org/10.3920/978-90-8686-891-9_141
dc.identifier.citationEnergy And Protein Metabolism And Nutrition. Wageningen: Wageningen Acad Publ, v. 138, p. 451-452, 2019.
dc.identifier.doi10.3920/978-90-8686-891-9_141
dc.identifier.issn0071-2477
dc.identifier.urihttp://hdl.handle.net/11449/209210
dc.identifier.wosWOS:000618163300140
dc.language.isoeng
dc.publisherWageningen Acad Publ
dc.relation.ispartofEnergy And Protein Metabolism And Nutrition
dc.sourceWeb of Science
dc.subjectthreonine
dc.subjectlysine
dc.subjectprecision feeding
dc.subjectprecision livestock farming
dc.titleEstimating real time individual lysine and threonine requirements in precision-fed pigsen
dc.typeTrabalho apresentado em evento
dcterms.rightsHolderWageningen Acad Publ

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