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dc.contributor.authorMusimba, N. K. R.
dc.contributor.authorGalyean, M. L.
dc.contributor.authorHolechek, J. L.
dc.contributor.authorPieper, R. D.
dc.date.accessioned2020-09-24T03:28:24Z
dc.date.available2020-09-24T03:28:24Z
dc.date.issued1987-09-01
dc.identifier.citationMusimba, N. K., Galyean, M. L., Holechek, J. L., & Pieper, R. D. (1987). Ytterbium-labeled forage as a marker for estimation of cattle fecal output. Journal of Range Management, 40(5), 418-421.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/3899601
dc.identifier.urihttp://hdl.handle.net/10150/645266
dc.description.abstractThis study evaluated the accuracy of a once daily dose of ytterbium (Yb)-labeled forage as a marker to estimate fecal output of cattle grazing at the National Range Research Station, Kiboko, Kenya. Ytterbium-labeled forage was administered daily to 15 zebu steers for 10 consecutive days for each of 3 trials. During the last 5 days of each trial, fecal grab samples were collected at 6-h intervals. During this same 5-day period, total fecal output was collected from 9 of the steers. Ytterbium estimates of fecal output were 114%, 104%, and 144% of actual fecal output for March, April, and July trials, respectively. Dry matter and organic matter intake estimates between Yb and total collection procedures differed (P<.05) in the July trial, but not the March and April trials. Compared with total fecal collection, Yb overestimated organic matter intake by 20, 2, and 40%, respectively for March, April and July trials. Based on our results, daily dosing of Yb-labeled forage will provide reasonable estimates of fecal output when relative estimates of intake between range management treatments are needed.
dc.language.isoen
dc.publisherSociety for Range Management
dc.relation.urlhttps://rangelands.org/
dc.rightsCopyright © Society for Range Management.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectrare earth elements
dc.subjectisotope labeling
dc.subjectfeces collection
dc.subjectzebu
dc.subjectKenya
dc.subjectgrazing
dc.subjectforage
dc.subjectfeed intake
dc.titleYtterbium-Labeled forage as a Marker for Estimation of Cattle Fecal Output
dc.typetext
dc.typeArticle
dc.identifier.journalJournal of Range Management
dc.description.noteThis material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries.
dc.description.collectioninformationThe Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform August 2020
dc.source.volume40
dc.source.issue5
dc.source.beginpage418-421
refterms.dateFOA2020-09-24T03:28:24Z


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