Crude glycerin in diets for feedlot Nellore cattle

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dc.contributor.authorCastello Branco van Cleef, Eric Haydt [UNESP]
dc.contributor.authorBertocco Ezequiel, Jane Maria [UNESP]
dc.contributor.authorD'Aurea, Andre Pastori [UNESP]
dc.contributor.authorFavaro, Vanessa Ruiz [UNESP]
dc.contributor.authorDourado Sancanari, Juliana Borsari [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-12-03T13:11:33Z
dc.date.available2014-12-03T13:11:33Z
dc.date.issued2014-02-01
dc.description.abstractTwo studies were conducted to evaluate the effects of crude glycerin on feed intake, performance, carcass characteristics, and total digestibility of Nellore bulls. In experiment 1, cattle (n = 30) were fed a control diet without crude glycerin and diets containing 7.5, 15, 22.5, and 30% crude glycerin, for 103 d. Animals were harvested and data of carcass characteristics were collected. In experiment 2, a digestibility trial was performed using indigestible acid detergent fiber (iADF) as internal marker, and five rumen-cannulated steers. Both experiments were conducted as a randomized complete block design and data were analyzed using mixed procedures. In experiment 1 no differences were observed among treatments on dry matter intake, and performance variables. Regarding carcass characteristics, no effect was observed, except for carcass fat estimates, which were greater in treatments with crude glycerin. In experiment 2, crude glycerin promoted a decrease in digestibility of fibrous fractions NDF and HEM, and increased digestibility of crude protein by 6%. Although it caused negative effect on digestibility of fibrous fraction of diets, crude glycerin can be a good energy source for Nellore bulls, since no losses are observed on performance and carcass characteristics when animals are fed up to 30% of this by-product.en
dc.description.affiliationUniv Estadual Paulista, Dept Zootecnia, Jaboticabal, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Zootecnia, Jaboticabal, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent86-91
dc.identifierhttp://dx.doi.org/10.1590/S1516-35982014000200006
dc.identifier.citationRevista Brasileira de Zootecnia-brazilian Journal of Animal Science. Vicosa-mg: Revista Brasileira Zootecnia Brazilian Journal Animal Sci, v. 43, n. 2, p. 86-91, 2014.
dc.identifier.fileS1516-35982014000200006.pdf
dc.identifier.issn1806-9290
dc.identifier.scieloS1516-35982014000200006
dc.identifier.urihttp://hdl.handle.net/11449/113263
dc.identifier.wosWOS:000329931900006
dc.language.isoeng
dc.publisherRevista Brasileira Zootecnia Brazilian Journal Animal Sci
dc.relation.ispartofRevista Brasileira de Zootecnia = Brazilian Journal of Animal Science
dc.relation.ispartofjcr0.735
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectBeef cattleen
dc.subjectby-productsen
dc.subjectCarcassen
dc.subjectdigestionen
dc.subjectGlycerolen
dc.titleCrude glycerin in diets for feedlot Nellore cattleen
dc.typeArtigo
dcterms.rightsHolderRevista Brasileira Zootecnia Brazilian Journal Animal Sci
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

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