Four Step Plan to Protect Cattle Herds

Four key steps keep cattle healthy year round

Oklahoma producer Buck Rich and veterinarian Dr. Tyler Thomas focus on smarter—not heavier—parasite control to keep cattle healthy all year. Their method combines four simple practices any rancher can follow.

They begin with diagnostics, using fecal tests to confirm parasite presence before treatment. “I know I can call Dr. Thomas any time,” said Rich. “He understands our operation and helps me make decisions that actually fit what we’re doing. Working with my vet makes all the difference.”

Next is combination treatment, applying two dewormers from different drug classes—macrocyclic lactones and benzimidazoles—at the same time. This targets parasites in different ways, cleans up more effectively, and slows resistance.

The third step is refugia, leaving part of the herd untreated to keep a population of susceptible parasites. This helps dilute resistant worms and protects the effectiveness of dewormers.

Finally, strong management supports the plan. Regular pasture rotation and leaving half the grass behind limit parasite exposure and improve regrowth. Grazing above the bottom two inches reduces contact with infective larvae and benefits soil health.

Rich and Dr. Thomas adjust their plan to seasons, weather, and marketing schedules, proving that tailored strategies save money and protect herd health. “It’s about using the tools we have wisely,” said Dr. Washburn. “When you put diagnostics, combination treatment, refugia and management together, you’re building something more sustainable — and profitable.”