About
Rocking S Dairy runs at 100 lbs of milk per cow today, and Siebren Jacobi isn't chasing production directly. He's building a herd engineered for longevity — using genomics to cull low-merit cows, improving heifer conception rates from the mid-40s into the 60s, and treating every replacement heifer as a real business investment.

An early adopter of genomics since 2013, his strategy comes down to one principle: get milk production without breeding directly for it. The results are showing up in the numbers.

Join us to hear Siebren share the real-world strategy behind building a dairy that can sustain 120 lbs per cow — and what his results on heifer reproduction and herd genetics look like in practice. This webinar is brought to you by Virtus.
When
Tuesday, March 10, 2026 · 1:30 p.m. Central Time (US & Canada) (GMT -5:00)
Agenda
  • Herd Genetics: Building for Longevity Without Breeding Directly for Production
  • Genomics Adoption — Lessons From 12 Years on the Leading Edge
  • Heifer Reproduction: Moving Conception Rate from the Mid-40s to the 60s
  • Replacement Raising as a Profit Center — Why Every Calf Counts
  • Plus, stay on after the live event (or as we call it the Back-30) for an in-depth conversation with the key advisors and industry players behind Siebren's operation. This special section is ONLY available for live participants.
Presenter
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Siebren Jacobi
Rocking S Dairy
Siebren Jacobi of Modesto, California, already milks 100 lbs per cow — and has a clear, decade-long plan to reach 120 lbs built on genetics, cow longevity, and one of the most disciplined approaches to heifer reproduction in the industry.