VTechWorks staff will be away for the Thanksgiving holiday beginning at noon on Wednesday, November 27, through Friday, November 29. We will resume normal operations on Monday, December 2. Thank you for your patience.
 

The Use of Steered Ileo-cecal Valve Cannulated Pigs to Evaluate the Effects of Adding Phytase or Beta-mannanase to the Diet on Amino Acid, Mineral and Energy Utilization

Simple item page
dc.contributor.authorRadcliffe, John Scotten
dc.contributor.committeecochairFontenot, Joseph P.en
dc.contributor.committeecochairHarper, Allen F.en
dc.contributor.committeememberDenbow, D. Michaelen
dc.contributor.committeememberPleasant, R. Scotten
dc.contributor.committeememberDavis, Barbara A.en
dc.contributor.departmentAnimal and Poultry Sciencesen
dc.date.accessioned2014-03-14T20:11:00Zen
dc.date.adate2000-04-27en
dc.date.available2014-03-14T20:11:00Zen
dc.date.issued2001-04-13en
dc.date.rdate2001-04-27en
dc.date.sdate2000-04-27en
dc.description.abstractForty-six barrows fitted with steered ileo-cecal valve cannulas were used in four experiments to evaluate the effects of supplementing swine diets with microbial phytase or beta-mannanase on the apparent ileal (AID) and/or apparent total tract digestibility (ATTD) of amino acids, N, Ca, P, DM and energy. In Exp. 1, the addition of phytase to low CP corn-soybean meal based diets increased the AID of Ca (P < .01), P (P < .001), and all amino acids (P < .10) measured except Leu, Ser, Pro, Met, His and Tyr. In Exp. 2, the addition of microbial phytase to corn-soybean meal, corn-soybean meal-wheat middlings, or corn-soybean meal-meat and bone meal based diets resulted in increased AID of Ca and P, but had no effect (P > .1) on amino acid digestibilities. Diet type affected all digestibility measurements, but did not affect the efficacy of supplemental phytase. In Exp. 3, the addition of microbial phytase to corn-wheat-soybean meal, corn-wheat-cannola, or sorghum-corn-soybean meal based diets led to an increased ( P <.05) AID of P, Asp, Thr, Ser, Ala, Tyr, Phe, Lys and Arg. In Exp. 4, the addition of beta-mannanase to corn-soybean meal based swine diets led to an increased AID of DM and ATTD of energy. In addition, the AID of all amino acids measured were increased numerically, with many of these values approaching significance. The results of these studies demonstrate that supplementing pig diets with phytase or beta-mannanase, results in an increased digestibility of certain dietary components due to the breakdown of anti-nutritive compounds in the diet.en
dc.description.degreePh. D.en
dc.identifier.otheretd-04272000-13260013en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-04272000-13260013/en
dc.identifier.urihttp://hdl.handle.net/10919/27341en
dc.publisherVirginia Techen
dc.relation.haspartJSRChapter_9.pdfen
dc.relation.haspartJSRAbstract.pdfen
dc.relation.haspartJSRadcliffeDissertation.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectphytaseen
dc.subjectdigestibilityen
dc.subjectamino acidsen
dc.subjectcannulaen
dc.subjectbeta-mannanaseen
dc.titleThe Use of Steered Ileo-cecal Valve Cannulated Pigs to Evaluate the Effects of Adding Phytase or Beta-mannanase to the Diet on Amino Acid, Mineral and Energy Utilizationen
dc.typeDissertationen
thesis.degree.disciplineAnimal and Poultry Sciencesen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

Files

Original bundle
Now showing 1 - 3 of 3
Thumbnail Image
Name:
JSRadcliffeDissertation.pdf
Size:
1.37 MB
Format:
Adobe Portable Document Format
Download
Thumbnail Image
Name:
JSRAbstract.pdf
Size:
4.87 KB
Format:
Adobe Portable Document Format
Download
Thumbnail Image
Name:
JSRChapter_9.pdf
Size:
57.35 KB
Format:
Adobe Portable Document Format
Download

Collections

Doctoral Dissertations