date:Dec 31, 2013
two products use different active ingredients: Optaflexx is based on ractopamine, while Zilmax uses zilpaterol. But Zilmax added more weight to cattle than Optaflexx did, say industry nutritionists and feedlot owners. That perceived advantage helped Zilmax gain market share and sales faster than Optaflexx in recent years, say industry experts.
Turgeon had heard from his customers about lameness problems associated with Zilmax, and a colleague this summer showed him photos of animals with hooves