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DairyTalk 704: High Index, Weak Fundamentals? How TPI-F Could Change Holstein Sire Selection - by Helmut Demmelhuber
This podcast episode is based on an article by Helmut Demmelhuber introducing TPI-F as an alternative total merit index for Holstein breeding. The model challenges the current TPI approach by arguing that butterfat receives excessive influence while functional conformation, metabolic resilience, and real feed efficiency deserve greater emphasis. TPI-F therefore incorporates the HCC conformation composite alongside specific weighting for ketosis resistance and feed efficiency while maintaining selection pressure for protein production. An analysis of more than 300 leading sires illustrates how…
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