How a 10,500-Cow Dairy Tackled Bird Flu & Improved Dry-Off Results

When bird flu hit the dairy industry, Lawrence Simas of Zonneveld Dairies in Laton, California, was faced with a challenge unlike any before. Managing more than 10,500 milking cows and 20,000 animals overall, the team needed practical solutions that supported cow health while keeping workloads manageable. In this testimonial, Lawrence shares his experience using AHV Booster and AHV Aspi during the bird flu outbreak and discusses the impact on recovery, production, labor efficiency, and animal management. He also explains why Zonneveld Dairies transitioned from traditional dry cow tubes to a pill-based dry-off approach, highlighting observations on: ✅ Faster and less stressful treatment protocols ✅ Reduced labor and handling time ✅ Less milk leakage after dry-off ✅ No increase in mastitis cases or somatic cell counts ✅ Immediate return of fresh cows to the milking herd ✅ Improved management flexibility without withdrawal periods Hear firsthand how one of California's largest dairies evaluated the results and why Lawrence says he would use the program again with confidence. Featured Dairy: Zonneveld Dairies – Laton, California Speaker: Lawrence Simas #DairyFarming #DairyHealth #AHV #BirdFlu #DryOffManagement #MastitisManagement #DairyProducer #CaliforniaDairy #CowHealth #DairyInnovation #livestockmanagement 00:00-00:13 About The Farm 00:14-01:32 Dealing With H5N1 Bird Flu 01:33-04:53 Drying Cows With StopLac