Dr. Cook takes a walk down memory lane, reminiscing about the days when herds were moving out of tiestall facilities and into freestall barns and expanding herd size. As herds got larger, mature cows didn't perform as well as relative to the heifers. But why? Poor cow comfort was holding these herds back so Dr. Cook got into the remodeling business. Hear how to remodel barns so that cow comfort doesn't hold back milk production.