On the Ground • Lupines are legumes and may provide a source of protein and other nutrients late in the growing season. However, toxins are concentrated in the pods and will poison animals, especially sheep, if gluttonous consumption occurs. • Risk of lupine-induced crooked calf syndrome depends on multiple factors including lupine population density, availability of other quality forages, weather/climate patterns, breeding schedules, stage of pregnancy, grazing management strategies, and others. • Using stockers, open heifers, or other livestock species to graze lupine-infested pastures is one way to utilize high-risk rangelands. Do not overgraze as animals may be poisoned if forced to subsist on lupines. • Identify lupines and obtain a chemical analysis for risk assessment on rangelands before turning pregnant cows out. Plant samples may be submitted to the USDA–Agricultural Research Service Poisonous Plant Research Laboratory for identification, chemical analysis, and a follow-up risk assessment at no charge. The Rangelands 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 March 2020
Practical, non-technical peer-reviewed articles published by the Society for Range Management. Access articles on a rolling-window basis from vol 1, 1979 up to 3 years from the current year. More recent content is available by subscription from SRM.