Most Holstein breeders are quietly shifting their sire lists after the latest TPI update — without ever checking whether the new formula actually matches their milk check. This episode dissects TPI 2026’s 24P:14F production weights and makes an uncomfortable claim: a 500‑cow herd that blindly follows the protein‑heavy signal can bleed around $17,500 a year in component revenue compared to a herd that simply breeds for total fat + protein. If you rely on TPI to define “good bulls,” this conversation will force you to decide whether you’re optimizing for processor preferences or your own profitability.

Key Takeaways:

· Why the shift from 19P:19F to 24P:14F is a directional change, not a minor tweak, in how Holstein genetics are being rewarded.

· How the new TPI formula effectively values one pound of protein like ~1.7 po ...