Feed Intake Patterns in Crossbred Pigs and their Relationship to Production Traits

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dc.contributor.advisorDavid Casey, Committee Memberen_US
dc.contributor.advisorO.W. Robison, Committee Memberen_US
dc.contributor.advisorJoseph Cassady, Committee Co-Chairen_US
dc.contributor.advisorTodd See, Committee Co-Chairen_US
dc.contributor.authorLanier, Christian Lynnen_US
dc.date.accessioned2010-04-02T17:54:51Z
dc.date.available2010-04-02T17:54:51Z
dc.date.issued2006-12-06en_US
dc.degree.disciplineAnimal Scienceen_US
dc.degree.levelthesisen_US
dc.degree.nameMSen_US
dc.descriptionNorth Carolina State University Theses Animal Science.
dc.description.abstractThe purpose of this research was to evaluate line and sex differences in swine feeding behavior traits. Barrows and gilts used in the study were from three sire lines and two dam lines. Data were provided by PIC in Franklin, KY. Feeding behavior traits considered were average daily feed intake (ADFI), average occupation time⁄day (AOTD), average feed intake⁄visit (AFIV), average number of visits⁄day (ANVD), average feeding rate⁄visit (AFRV), average occupation time⁄visit (AOTV), and residual average daily feed intake (RADFI). Electronic feeders were used to measure feeding behavior traits on two pens per feeder. Use of the feeder alternated between the two pens weekly. Feeding behavior traits differed by line and sex. Production traits that were used in the study included: average daily gain (ADG), feed conversion ratio (FCR), backfat (BF), loin depth (LD), percent lean (% LEAN), and average daily feed intake (ADFI). For this study, ADFI was treated as both a feeding behavior and performance trait. Feeding behavior traits were used to calculate principal components. Principal components were then treated as traits in terms of statistical analysis.en_US
dc.formatThesis (M.S.)--North Carolina State University.
dc.identifier.otheretd-08082006-232135en_US
dc.identifier.urihttp://www.lib.ncsu.edu/resolver/1840.16/348
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectprincipal components analysisen_US
dc.subjectperformance traitsen_US
dc.subjectfeeding behavioren_US
dc.subjectPigsen_US
dc.titleFeed Intake Patterns in Crossbred Pigs and their Relationship to Production Traitsen_US
dcterms.abstractKeywords: principal components analysis, performance traits, feeding behavior, Pigs.
dcterms.extentx, 93 pages : illustrations (some color)

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