Opening Summary Everyone talks about chasing the highest LPI. But what if the sires driving nearly a quarter of Canadian Holstein registrations are actually dragging down fertility, health, and long‑term profit? In this episode of The Bullvine Podcast, we dissect Lactanet’s new subindexes and reveal how Canada’s 20 most‑used Holstein sires can sit at the 96th percentile for LPI while averaging only the 31st percentile for fertility — and what that disconnect is really costing in dollars per cow. If you’re still picking bulls off the front page of a catalog, this conversation will change how you read proofs and how you build your next sire list.

Key Takeaways

· Why 17 of the 20 most‑used Holstein sires rank below the breed midpoint for fertility — despite “elite” LPI proofs.

· How Lactanet’s six new LPI subindexes expos ...