E642 Nordic Holstein Coancestry R...
E642 Nordic Holstein Coancestry Rose Twentyfold. Your Inbreeding Percentage Won’t Show You.

The Bullvine Daily Brief by The Bullvine

Episode notes

Seven of the top ten August 2026 GTPI sires share one father. While herdbook mating reports look stable, underlying genetic diversity is collapsing.

On The Bullvine Podcast, we break down why pedigree inbreeding numbers fail to flag real breeding risk. Canadian Holstein inbreeding reached 9.99% in 2024, climbing at double the rate of other breeds. While trade proposals push for European import quotas, new peer-reviewed research shows passport screening misses the mark. Discover why screening for genomic relationship values to your herd is the only tool that protects genetic progress.

What You Will Learn

• Why pedigree inbreeding numbers masked a 20x surge in Nordic Holstein female coancestry

• How 7 of 10 August 2026 GTPI sires trace back to one bull

• Why a 5% European import quota targets the wrong genetic probl ... 

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Keywords
sire selection strategypedigree analysisLactanet inbreedingHolstein coancestrygenomic relationship valueeffective population sizeNordic Holstein genetics