Sandhills Calving System gets renewed attention at 25 years

The Sandhills Calving System, a beef-cattle management approach developed in Nebraska about 25 years ago, is getting renewed attention after the University of Nebraska–Lincoln highlighted its long-term impact on calf health and ranch economics in a March 19, 2026 feature. The system was built through collaboration among rural veterinarian Tim Knott, ranchers Mart and Cindy McNutt, and UNL veterinarians David Smith and Dale Grotelueschen. Its core change is management, not medicine: producers separate calves by age and move still-pregnant cows to clean calving pastures on a schedule, reducing the environmental buildup and transmission of scours-causing pathogens. UNL says the approach has become widely recommended across North America, with early field experience showing marked drops in illness, death loss, and veterinary treatment costs. (news.unl.edu)

Why it matters: For veterinary professionals, the story is a reminder that neonatal calf diarrhea control often hinges on system design as much as diagnostics, therapeutics, or vaccination. UNL’s original and follow-on materials describe the Sandhills model as a way to interrupt “effective contacts” between younger calves and pathogens shed by older calves, addressing outbreak dynamics rather than only individual cases. That framing has since been reinforced in extension guidance and a 2022 peer-reviewed review, which presented the Sandhills Calving System as a practical example of systems thinking in food-animal medicine. The operational upside is important, too: fewer scours cases can mean less treatment labor, lower drug use, and better calf survival in commercial beef herds. (digitalcommons.unl.edu)

What to watch: Expect continued interest in modified Sandhills-style protocols tailored to different herd sizes, climates, and pasture constraints, especially as veterinarians and extension teams push prevention-first calf health plans. (beef.unl.edu)