Welcome Friends and Cattlemen, We are excited to welcome you to the 4th annual University of Wyoming High Altitude Bull Test and Sale and to offer an excellent set of bulls at the field day and sale on Saturday, March 28, 2026. The mission of the bull test is to provide a unique learning experience for our students, provide valuable data and a venue for producers to market their bulls, and provide performance and PAP-tested bulls for cow-calf producers across the region. Twelve undergraduate and 2 graduate students participated in the program during the fall and spring semesters. Students had lectures and gained hands-on experience in bull development, bull selection, breeding soundness exams, pulmonary hypertension, feed efficiency, and carcass ultrasound. Additionally, students developed mar- keting materials, clipped and pictured bulls, recorded data, and performed daily health checks. Bulls were brought to Laramie at the beginning of November and went through an initial screening period. Bulls were PAP-tested after 45 days, and any bulls that had PAP scores too high to excel at this altitude were sent home. The remaining bulls were on test for a 70-day feed efficiency test. A final PAP test was completed, and the data is available in this catalog. Not all bulls being sold are recommended for high-altitude breeding pro- grams. Please see the table referencing PAP scores and elevation to help you decide which PAP score range your operation should consider. The sale will be a live auction at the Laramie Research and Extension Center Hansen teaching arena and will also be available online at dvauction.com. Bulls will be available for pick up immediately after the sale. University of Wyoming will house the bulls until April 10th at no charge, after which time a feed and yardage fee will be applied. A big THANK YOU goes out to the people who worked hard to make this program happen. The UW Beef Unit at the Laramie Research and Extension Center (LREC) provided oversight of day-to-day management, feeding, and health of the bulls. The undergraduate students involved in the class did an outstanding job feeding and man- aging the bulls throughout the test, as well as assisting with data collection and developing marketing materials. We would also like to express our deepest gratitude to our consignors and buyers; this program would not exist without you. We have high hopes for this program moving forward and appreciate your support! Thank you for your interest and for taking the time to evaluate the cattle. We look forward to seeing you at the field day for the educational program and sale! Thank you,
Shelby Rosasco, Ph.D. Assistant Professor, Beef Extension Specialist Hannah Cunningham-Hollinger, Ph.D. Associate Professor, Animal Genetics Cody Gifford, Ph.D. Assistant Professor, Meat Science Ben Hollinger LREC Beef Unit Manager
2025 UW High Altitude Bull Sale
2 THE 4TH ANNUAL UNIV. OF WYOMING HIGH ALTITUDE BULL SALE
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