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Nutritional Value of Warm- and Cool-Season Grasses for Ruminants

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dc.contributor.authorMundie, Benjamin Scotten
dc.contributor.committeechairFontenot, Joseph P.en
dc.contributor.committeememberAbaye, Azenegashe Ozzieen
dc.contributor.committeememberPeterson, Paul R.en
dc.contributor.committeememberHall, John B.en
dc.contributor.departmentAnimal and Poultry Sciencesen
dc.date.accessioned2014-03-14T21:36:38Zen
dc.date.adate1999-06-02en
dc.date.available2014-03-14T21:36:38Zen
dc.date.issued1999-05-12en
dc.date.rdate2000-06-02en
dc.date.sdate1999-05-27en
dc.description.abstractA metabolism trial was conducted to compare the nutritional value of: 1)"Quickstand" bermudagrass [Cynodon dactylon (L.) Pers.], 2)caucasian bluestem [Bothriochloa caucasia (Trin.) C.E. Hubb], 3)tall fescue (Festuca arundinacea Schreb.), and 4)orchardgrass (Dactylis glomerata L.). The warm-season grasses (bermudagrass and bluestem) were higher (P < .01) in fiber components than the cool-season grasses (tall fescue and orchardgrass). Bluestem was lower (P < .001) in CP, hemicellulose, and ash, and higher in NDF (P < .001), ADF (P < .001), cellulose (P < .001), and lignin (P < .01) than bermudagrass. The warm-season grasses were lower in the apparent digestibility of DM (P < .001), NDF (P < .01), ADF (P < .05), cellulose (P < .05), and hemicellulose (P < .01) than cool-season grasses. Apparent digestibility of NDF (P < .001), ADF (P < .001), cellulose (P < .01), and hemicellulose (P < .01) was higher for bluestem than bermudagrass. Fescue was higher (P < .001) in apparent digestibility of DM and CP and lower (P < .01) in apparent digestibility of NDF, ADF, cellulose, and hemicellulose than orchardgrass. Lambs fed bluestem had lower (P < .05) N retention than those fed bermudagrass, when expressed as g/d. Lambs fed fescue had higher (P < .001) N retention, than those fed orchardgrass. When expressed as a percent of intake or absorption, N retention values were similar among treatments. The results of this study suggest that cool-season grasses are of higher nutritional value than warm-season grasses.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-052799-165923en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-052799-165923/en
dc.identifier.urihttp://hdl.handle.net/10919/42804en
dc.publisherVirginia Techen
dc.relation.haspartScottM.PDFen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectOrchardgrassen
dc.subjectDigestibilityen
dc.subjectTall Fescueen
dc.subjectCaucasian Bluestemen
dc.subjectBermudagrassen
dc.subjectRuminantsen
dc.titleNutritional Value of Warm- and Cool-Season Grasses for Ruminantsen
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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