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CitationNelson, A. B., & Furr, R. D. (1966). Interval of observation of grazing habits of range beef cows. Journal of Range Management, 19(1), 26-29.
PublisherSociety for Range Management
JournalJournal of Range Management
AbstractReasonably accurate estimates of activities of longer duration, such as grazing and ruminating, can be obtained by observations at intervals of 15 or even 30 min. Observations at 15 min or longer intervals failed to give reliable estimates of such activities as walking, sleeping, nursing calves, defecation, urination and drinking.