Nutritional value of flat pea hay fed to sheep at different levels

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dc.contributor.authorForster, Lance Allenen
dc.contributor.committeechairFontenot, Joseph P.en
dc.contributor.committeememberPerry, H. D.en
dc.contributor.committeememberAllen, Vivien G.en
dc.contributor.committeememberWahlberg, Mark L.en
dc.contributor.committeememberFoster, Joyce G.en
dc.contributor.departmentAnimal Scienceen
dc.date.accessioned2014-03-14T21:41:03Zen
dc.date.adate2010-07-21en
dc.date.available2014-03-14T21:41:03Zen
dc.date.issued1988-03-05en
dc.date.rdate2010-07-21en
dc.date.sdate2010-07-21en
dc.description.abstractTwo experiments were conducted with sheep to determine the nutritional value of 'Lathco' flatpea (Lathyrus sylvestris) hay. In experiment 1, a finishing trial was conducted with 50 group fed crossbred lambs (25 ewes and 25 wethers) fed diets consisting of 70% chopped forage and 30% ground corn grain for 70 d. Five pens of five wethers and five pens of five ewes were selffed diets in which the forage consisted of 100:0, 75:25, 50:50, 25:75, and 0:100 proportions of alfalfa (Medicago sativa L.) and flatpea hay. Feed efficiencies decreased linearly (P<.05) as flatpea increased in the diet. Linear decreases (P<.05) were obtained in kidney and pelvic fat, backfat, leg conformation, and yield grade with increased flatpea in the diet. Blood urea-N (BUN), ruminal pH and NH3-N increased (P<.005) as proportion of flatpea increased. Total volatile fatty acid (VFA) and acetate concentration decreased linearly (P<.005) and propionate, isovalerate, and valerate levels increased linearly (P<.01) with increased proportions of flatpea hay. In experiment 2, 30 wether lambs were fed diets consisting of 100:0, 75:25, 50:50, 25:75 and 0:100 proportions of chopped alfalfa and flatpea hays in a digestion trial. Neutral detergent fiber (NOE), acid detergent fiber (ADE), cellulose, hemicellulose and energy digestibilities decreased linearly (P<.01) with increased levels of flatpea hay. Nitrogen retention was not different between sheep fed the different diets. Apparent absorbtion and retention of Ca decreased linearly (P<.05) with increased level of flatpea hay Ruminal pH and NHa-N, and BUN increased linearly (P<.OOl) as flatpea was increased in the diet. Ruminal total VEA, acetate and acetate to propionate ratio decreased linearly (P<.001) and propionate, isobutyrate, isovalerate, and valerate levels increased linearly (P<.001) as level of flatpea increased.en
dc.description.degreeMaster of Scienceen
dc.format.extentxi, 86 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-07212010-020425en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-07212010-020425/en
dc.identifier.urihttp://hdl.handle.net/10919/43855en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1988.F678.pdfen
dc.relation.isformatofOCLC# 18109130en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectPerformanceen
dc.subjectMedicago sativa L.en
dc.subjectLathyrus sylvestrisen
dc.subjectdigestibilityen
dc.subjectlambsen
dc.subject.lccLD5655.V855 1988.F678en
dc.subject.lcshSheep -- Feed utilization efficiencyen
dc.subject.lcshSheep -- Feeding and feedsen
dc.titleNutritional value of flat pea hay fed to sheep at different levelsen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineAnimal Scienceen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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