Intakes of roughage rations by two-year-old cows and heifers were estimated by a chromic oxide dilution technique and compared against actual measured levels of intake. Intake was overestimated 2.9 percent in cows and 28.6 percent in heifers. Linear regression was used to increase accuracy of intake estimates by developing equations to predict actual intake from values obtained by the indicator dilution approach. A system for using this approach under range conditions was suggested. It was shown that non-adjusted intake estimates were not absolute values and the assumption that estimated intake values are relative and adequate for comparison is valid only when ruminants consume similar diets. This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The 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. Migrated from OJS platform August 2020
Scholarly peer-reviewed articles published by the Society for Range Management. Access articles on a rolling-window basis from vol. 1, 1948 up to 5 years from the current year. Formerly Journal of Range Management (JRM). More recent content is available by subscription from SRM.