The Effects of Genotype, Chromium Picolinate Supplementation, Sex, and Their Interactions on Growth Performance, Carcass Characteristics, and Muscle Quality in Pigs

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dc.contributor.authorGreen, Brent Kenneth IIen
dc.contributor.committeechairWood, Cynthia M.en
dc.contributor.committeememberClaus, James R.en
dc.contributor.committeememberHarper, Allen F.en
dc.contributor.departmentAnimal and Poultry Sciencesen
dc.date.accessioned2014-03-14T20:48:30Zen
dc.date.adate1998-02-13en
dc.date.available2014-03-14T20:48:30Zen
dc.date.issued1997-08-22en
dc.date.rdate1999-02-13en
dc.date.sdate1997-08-22en
dc.description.abstractTwo trials (n = 160) were conducted to evaluate the effects of the halothane gene, chromium picolinate supplementation, and sex on growth performance, carcass characteristics, and meat quality in pigs. Halothane negative (NN) and halothane carrier (Nn) pigs (barrows, gilts) were supplemented with either 0 or 200 ppb chromium picolinate from 28.7 to 107.3 kg. There were no differences between genotypes for ADG or G/F. Chromium had no significant effect on any growth, carcass, or muscle quality characteristics, although chromium-fed pigs were slightly fatter. Barrows gained faster (P < .001) and consumed more feed (P < .001) than gilts, yielding heavier (P < .001) carcasses, and heavier (P < .05) wholesale cuts. Gilts had less backfat (P < .001) and larger (P < .01) LMA, and tended to gain more efficiently than barrows. Carrier pigs had lower pH values, higher CIE L* values, higher drip loss, and lower protein solubility (P < .05), all indicators of decreased quality. Chromium supplementation resulted in pork with higher (P<.05) CIE a*, CIE b*, and Chroma C values. Halothane carrier barrows and all gilts that were not fed chromium had lower lipid muscle content than NN barrows (P < .05). Gilts had higher CIE L* and a* values (P < .001), less lipid, and higher moisture percentage (P < .02) than barrows. Chromium picolinate did not negatively affect pork muscle quality.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-11298-162233en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11298-162233/en
dc.identifier.urihttp://hdl.handle.net/10919/35853en
dc.publisherVirginia Techen
dc.relation.haspartgreen.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectPigsen
dc.subjectPork Qualityen
dc.subjectHalothaneen
dc.subjectChromium Picolinen
dc.subjectSexen
dc.titleThe Effects of Genotype, Chromium Picolinate Supplementation, Sex, and Their Interactions on Growth Performance, Carcass Characteristics, and Muscle Quality in Pigsen
dc.typeThesisen
thesis.degree.disciplineAnimal and Poultry Sciencesen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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