Botanical and chemical composition along with nutrient digestibility were studied on five grass hays from north-central New Mexico. Although botanical composition varied widely among the hays, they were similar in most chemical constituents and in digestibility of these constituents. Crude protein was the most variable chemical constituent and was also the most variable component in digestibility among the hays. Digestible protein contents for the hays were closely related to their crude protein percentages. By comparing nutrient composition to nutrient requirements for cattle, an estimate of the feeding value of the hays was obtained. All hays contained sufficient energy and all but one sufficient protein for pregnant cows, but most hays were deficient in these nutrients for lactating cows or growing calves. 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.