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. 

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Holstein ConnectionsBy Holstein Association USA, Inc.