70 NEBRASKA CATTLEMAN February 2026 LEGENDARY SINCE 1971 NEW BAG! ROZOL POCKET GOPHER BAIT Build your legacy with the legendary Rozol® Pocket Gopher Bait Burrow Builder Formula. Brought to you by Liphatech Ag, your Most Valuable Partner for effective rodent control. Rozol Pocket Gopher Bait Burrow Builder Formula is a restricted use pesticide. WE HAVE YOUR BACKS, BARNS AND BOTTOM LINES. frequencies and the interaction between natural selection and genetic mutation and migration. In the United States, Wright worked for 10 years for the U.S. Department of Agriculture, performing long-term animal breeding studies using guinea pigs. According to the book The History of Aberdeen-Angus: “From these experiments, he developed the equations to calculate inbreeding coefficients, heterosis, heritability and genetic distribution in a population – all tools we still use today. He also developed the threshold model, which is the basis of how we calculate genetic predictions on traits like calving ease. He then moved to the University of Chicago where he focused on evolutionary theory as well as genetic drift in populations. Wright had an amazing eight-decade career that culminated with publication of a four-volume book – Evolution and the Genetics of Populations—Genetics and Biometric Foundations New Edition.” Lush is considered the father of modern animal breeding. After receiving his doctorate, he spent the next 10 years doing multidisciplinary research at a Texas A&M experiment station. However, after he accepted a position on the faculty at Iowa State University, Lush became highly influenced by Wright and the use of statistics to quantify biological systems. Lush would audit some of Wright’s courses, and Wright lectured at Iowa State University for two summers. According to The History of Aberdeen Angus, “It was Lush who was the cog FOUNDATION OF OBJECTIVE SELECTION TOOLS CONTINUED FROM PAGE 68 Dr. Sewell Wright (1889-1998) Dr. Jay Lush (1896-1982) CONTINUED ON PAGE 72
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