John Abizaid Representative - Vence - Merck Animal Health Representative - Vence - Merck Animal Health John works with private producers, NGOs, and State + Federal agencies to promote and implement Virtual Fencing projects across the American West. He came to Vence through his fascination with the relationship between ruminants and grasslands and how important grazing species are to ecosystem health when managed properly. His hope is that Vence can provide a tool to land managers that allows them to improve rangeland ecology while minimizing negative impacts to wildlife. His work includes business development, RF modeling, and field deployment. He is based in Denver, Colorado.