Chemical composition and in vitro organic matter digestibility of grazed forages collected during June, July, and August were compared. Protein in grazed orchardgrass was usually higher than that from alta fescue and forages representing either orchardgrass or fescue were higher in protein than tall wheatgrass forage. During August, protein in grazed forages from all pastures was higher and fiber content lower than during June or July. Lignin content in grazed forage was highest for orchardgrass, intermediate for wheatgrass, and lowest for fescue. Digestibility favored orchardgrass over either fescue or wheatgrass. During the 7-day sampling periods of each month, the quality of diets selected by cattle decreased as sampling period progressed. Suggestions are offered as to when irrigated pasture might be more beneficially used in an integrated system with native range. 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.