HERD HEALTH Buyer confidence is a high priority at Weaver Ranch. Therefore, the following health management practices are in place for the sale bulls: 1) All bulls selected for sale have received all of the standard calfhood vaccinations at branding and/or post weaning. In additi on, all animals were screened to detect a potential BVD PI animal. To date, no PI animal has ever been identified since we have started testing. Thus, buyers can be assured that all animals sold through the sale are not BVD-PI carriers. 2) All bulls are tested for High Mountain Disease using the Pulmonary Arterial Pressure (PAP) test. The PAP was applied when the bulls were at Tie Siding, Wyoming at an elevation of 7500 feet. This allows the greatest predictability of the test. Dr. Tim Holt performed the PAP on September 3, 2025. Bulls with a PAP greater than 45 mm/hg should not be taken to the higher elevations . 3) All bulls eligible for sale met the Society for Theriogenology standards for reproductive soundness. 4) Only virgin bulls are sold. Nevertheless, all bulls will be screened for Trichomoniasis to meet intrastate requirements and also some interstate regulations . 5) The bulls were fertility & trich tested on January 27, 2026 by Dr. Tim Holt and his staff. The bulls were also poured.
The “ Herd Health ” page is dedicated to honor the memory of Dr. Robert (Bob) Mortimer. Unfortunately, Bob passed away on February 21, 2025. Susan, Mourine and the Beef Industry felt a great loss and were saddened by his passing. Bob had been an integral part of Weaver Ranch for many years. He was not only the ranch veterinarian, - upon retirement from CSU, part time employment found him at the ranch- spending many hours in the saddle helping move & work cattle - haying - fencing, and still doing preg checking and fertility testing. His lovely wife, Vicki, helped him many times at the Rafter 4. Bob Mortimer– Veterinarian, Friend, Mentor
HERD MANAGEMENT
• Weaver calves are tagged and weighed at birth. The calves are weighed again at weaning and as yearlings for our records and to provide herd data to the American Angus Association to be used to calculate EPDs and herd ratios. Weights are also taken whenever needed with the scales located on our facilities. • Weaver Ranch, yearling bulls & yearling heifers, spend the summer at Tie Siding, elevation of 7500. • Weavers have started to take 50 cows with bull calves to summer pasture at Tie Siding. The first calf heifer pairs have been going to Virginia Dale for the summer. • Weaver Ranch cattle are worked with 4-wheelers and on foot. The cattle rarely are worked by horseback. • Weaver Ranch bulls are managed for maintenance and natural growth, letting the bulls mature naturally to enhance their lon- gevity, performance and production. The bulls came home from summer pasture at Tie Siding November 14-15, 2025. They ’ ve been getting 4# of protein pellets, 17# - 20# grass hay and access to protein lick tubs. Mineral package in both pellets & tubs. • These Weaver Ranch bulls have not been pushed on grain, primped or pampered. They are sold in their “ working clothes ” and they are ready to go to work for you immediately!
Isaias & Russ - Thank you so very much for your hard work and dedication !!! The cattle “ LOVE ” you A BIG AND APPRECIATIVE THANK YOU TO ALL OUR BUYERS. WITHOUT YOUR SUPPORT, WE WOULD NOT DO WHAT WE LOVE, RANCHING
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