Intestinal starch disappearance increased in steers abomasally infused with starch and protein

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dc.contributor.authorRichards, C. J.
dc.contributor.authorBranco, A. F.
dc.contributor.authorBohnert, D. W.
dc.contributor.authorHuntington, G. B.
dc.contributor.authorMacari, Marcos [UNESP]
dc.contributor.authorHarmon, D. L.
dc.contributor.institutionUniv Kentucky
dc.contributor.institutionN Carolina State Univ
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:22:42Z
dc.date.available2014-05-20T15:22:42Z
dc.date.issued2002-12-01
dc.description.abstractSteers (379 +/- 10 kg) with ruminal, duodenal, and ileal cannulas were used in a 5 x 5 Latin square digestion trial to quantify and evaluate the relationship between intestinal protein supply and intestinal starch disappearance. Treatments were infusions of 0, 50, 100, 150, or 200 g/d of casein along with 1,042 g/d of raw cornstarch. Abomasal infusions were accomplished by passing tubing and a pliable retaining washer through the reticular-omasal orifice into the abomasum. Steers were fed a 93% corn silage, 7% supplement diet that contained 12% crude protein at 1.65% body weight in 12 equal portions/d. Periods lasted 17 d (12 d for adaptation, 2 d of collections, and 3 d of rest). The quantity and percentage of organic matter and protein disappearance from the small intestine increased linearly (P < 0.03) with infused casein. Greater quantities of starch disappeared with increased casein infusion (P < 0.01). The infusion of 200 g/d of casein increased small intestinal starch disappearance by 226 g/d over the control. Casein infusion did not affect the quantity or percent of organic matter, starch, or protein disappearance in the large intestine. Treatments did not change ruminal ammonia N, ruminal pH, or plasma glucose concentrations. Starch disappearance from the small intestine was increased with greater protein flow to the duodenum of steers.en
dc.description.affiliationUniv Kentucky, Dept Anim Sci, Lexington, KY 40546 USA
dc.description.affiliationN Carolina State Univ, Raleigh, NC 27695 USA
dc.description.affiliationUniv Estadual Paulista, UNESP, Rio Claro, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Rio Claro, SP, Brazil
dc.format.extent3361-3368
dc.identifierhttp://www.journalofanimalscience.org/content/80/12/3361.long
dc.identifier.citationJournal of Animal Science. Savoy: Amer Soc Animal Science, v. 80, n. 12, p. 3361-3368, 2002.
dc.identifier.issn0021-8812
dc.identifier.lattes5713558572926669
dc.identifier.urihttp://hdl.handle.net/11449/33641
dc.identifier.wosWOS:000180229400038
dc.language.isoeng
dc.publisherAmer Soc Animal Science
dc.relation.ispartofJournal of Animal Science
dc.relation.ispartofjcr1.711
dc.relation.ispartofsjr0,848
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectBeef cattlept
dc.subjectintestinespt
dc.subjectprotein digestionpt
dc.subjectruminantspt
dc.subjectstarch digestionpt
dc.subjectsteerspt
dc.titleIntestinal starch disappearance increased in steers abomasally infused with starch and proteinen
dc.typeArtigo
dcterms.licensehttp://www.journalofanimalscience.org/site/misc/JAS-InstructionsToAuthors.pdf
dcterms.rightsHolderAmer Soc Animal Science
unesp.author.lattes5713558572926669
unesp.author.orcid0000-0002-6850-7145[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

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