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dc.contributor.advisorWaldron, Dan
dc.contributor.authorYeaman, Jessup
dc.contributor.otherAngelo State University. Department of Agriculture.
dc.creatorYeaman, Jessup
dc.date.accessioned2011-05-03T20:03:15Z
dc.date.available2011-05-03T20:03:15Z
dc.date.issued2011-05-03T20:03:15Z
dc.date.submittedApril 2011
dc.identifier.urihttp://hdl.handle.net/2346.1/13
dc.description.abstractFeed intake and body weight were recorded on thirty-seven Dorper ram lambs and forty-two Rambouillet ram lambs from weaning to 61kg of body weight to determine feed conversion efficiency. The data were collected over a two year period. Lambs were progeny of 6 unrelated sires per breed. Lambs were approximately 90 days of age and 31kg body weight at the start of the trial. Lambs were fed a commercially prepared, pelleted diet with an average crude protein content of 16% and TDN of 70.5%. Lambs were divided into groups of 10-11 containing both breeds, and fed using FIRE (Feed Intake Recording Equipment, Osborne Industries, Inc, Osborne, KS, USA). Lambs were identified using a unique electronic identification ear tag transponder. Feed intake was recorded electronically and lambs were weighed every two weeks. Data were analyzed using SAS PROC MIXED with a model that included breed and birth type as fixed effects, a random effect for sire, and starting weight as a covariate. In both years of the trial, breed was not found to have a statistically significant effect on ADG or FCE (p>0.05). Post weaning feed efficiency was similar between Dorper and Rambouillet lambs. The Dorpers’ total ADG was 340 g/d; the Rambouillets’ was 342 g/d. The Dorpers’ average FCE was 0.159; the Rambouillets’ was 0.158. Over the post weaning period studied there was no advantage shown by either breed.en
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen
dc.subjectDiet
dc.subjectFeed Intake Recording Equipment
dc.subjectRambouillet
dc.subjectDorper
dc.subjectfeed efficiency
dc.subject.lcshRambouillet sheep
dc.subject.lcshDorper sheep
dc.subject.lcshFeed utilization efficiency
dc.subject.lcshResearch
dc.titleEstimates of efficiency of Dorper and Rambouillet lambs.en
dc.typeOtheren
dc.type.materialtext
dc.type.genrethesis
thesis.degree.nameM.S.
thesis.degree.levelMasters
thesis.degree.disciplineAnimal Science
thesis.degree.grantorAngelo State University
thesis.degree.departmentAgriculture
dc.contributor.committeeMemberCraddock, B. Frank
dc.contributor.committeeMemberEngdahl, Gil
dc.contributor.committeeMemberSalisbury, Michael
dc.contributor.committeeMemberScott, David


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