A physicist from the University of Waterloo traded quantum equations for calf barns—and earned the U.S. government's top early-career science award (PECASE) proving pair housing isn't welfare theater. It's economics. Emily Miller-Cushon's five-year longitudinal study reveals individually raised heifers lose critical feeding behaviors, costing 300-cow dairies $9,900 annually in replacement inventory. This episode cracks open her data-driven blueprint for resilient heifers that compete at the bunk from Day 1.

Key Takeaways:

• How pair-housed calves gain 130g/day more preweaning—and why that compounds to first-lactation milk
• The bunk behavior gap: 1.5 visits/hour vs. 0.8 under pressure—your fresh heifers' real-world test
• $9,900/year barn math at $3,300/heifer prices: mortality drops from 6% to 4% on 30 ...