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dc.contributor.authorForster, Lance Allenen_US
dc.date.accessioned2014-03-14T21:41:03Z
dc.date.available2014-03-14T21:41:03Z
dc.date.issued1988-03-05en_US
dc.identifier.otheretd-07212010-020425en_US
dc.identifier.urihttp://hdl.handle.net/10919/43855
dc.description.abstract

Two 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<.Ol) 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_US
dc.format.mediumBTDen_US
dc.publisherVirginia Techen_US
dc.relation.haspartLD5655.V855_1988.F678.pdfen_US
dc.subjectperformanceen_US
dc.subjectMedicago sativa L.en_US
dc.subjectLathyrus sylvestrisen_US
dc.subjectdigestibilityen_US
dc.subjectlambsen_US
dc.subject.lccLD5655.V855 1988.F678en_US
dc.titleNutritional value of flat pea hay fed to sheep at different levelsen_US
dc.typeThesisen_US
dc.contributor.departmentAnimal Scienceen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineAnimal Scienceen_US
dc.contributor.committeechairFontenot, Joseph P.en_US
dc.contributor.committeememberPerry, H. D.en_US
dc.contributor.committeememberAllen, Vivien G.en_US
dc.contributor.committeememberWahlberg, Mark L.en_US
dc.contributor.committeememberFoster, Joyce G.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-07212010-020425/en_US
dc.date.sdate2010-07-21en_US
dc.date.rdate2010-07-21
dc.date.adate2010-07-21en_US


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