Decoding EPDs: The Numbers Behind Great Cattle

In this episode of Canadian Gelbvieh Connection, host Sarah Van Schothorst sits down with Dr. Ryan Boldt, lead geneticist at International Genetic Solutions (IGS), to break down one of the most important tools in modern beef cattle breeding: Expected Progeny Differences (EPDs). Together, they explore what EPDs are, why they were developed, and how they help producers make more informed breeding decisions beyond what can be seen through visual appraisal alone. Ryan explains how EPDs are calculated, the data that goes into genetic evaluations, and how the multi-breed evaluation system used by IGS helps improve the accuracy and usefulness of genetic predictions across breeds. Listeners will also gain a clearer understanding of EPD accuracy—what it means, how it is determined, and how confident producers can be when comparing animals. The conversation also tackles a common point of confusion: the difference between individual trait EPDs and selection indexes, and when each approach is most useful in making breeding decisions. Finally, the episode focuses on practical application. Ryan discusses how producers can use EPDs to align selection decisions with their production goals—whether they are building a strong maternal herd or focusing on terminal calves for market. Key traits such as calving ease, milk, stayability, growth, carcass traits, and feed efficiency are highlighted. Whether you are new to EPDs or looking to better apply genetic data in your breeding program, this episode provides a clear, practical guide to using EPDs to move your herd forward. Thank you to our sponsor for supporting this episode. Grow Your Life with Kim & Jackie. Follow their podcast channel on Apple or Spotify.