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Holstein Connections
Welcome to Holstein Connections – where we share the latest stories, insights, and news from Holstein Association USA and beyond. The largest dairy cattle breed association in the world, Holstein Association USA provides leadership, information, and services to help dairy producers worldwide be successful. Whether you’re in the barn, on the road, or just tuning in for your dose of dairy news – we’re glad you’re here! This is Holstein Connections.
Holstein Connections
The TPI Formula Change Explained
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Beginning with the April 2026 genetic evaluation, the TPI formula shifts emphasis from fat toward protein. Join Dr. Jeffrey Bewley, Executive Director of Genetics Programs and Innovation, Dr. Jason Graham, Genetic Evaluation and Research Scientist, Director Spencer Hackett, Chair of the Genetic Advancement Committee, and Board of Director President John Burketfor a conversation about the change. They explain why it makes sense to adjust the formula weightings for PTA Protein and PTA Fat, how the Genetic Advancement Committee and Board of Directors arrived at the decision, and the data and market trends that support it.