Affiliation: | 1. Texas A&M AgriLife Extension Service, 7887 US Highway 87 North, San Angelo, Texas 76901 USA;2. USDA ARS Fort Keogh Livestock and Range Research Laboratory, 243 Fort Keogh Rd, Miles City, Montana 59301 USA;3. Department of Animal and Range Sciences, New Mexico State University, Las Cruces, New Mexico 88003 USA;4. USDA‐ARS, Northern Great Plains Research Laboratory, P.O. Box 459, Mandan, North Dakota 58554 USA |