A new wave of concern is sweeping the cattle industry as the damaging impact of continuing to use single active drenches on cattle growth comes to light. Industry analysis estimates that the continued use of single active drenches results in a 72,000t shortfall in national beef production, representing $250m in lost revenue for Australian cattle producers. In contrast, combination drenches have proven to be 99-100pc effective against key cattle worms, maximising cattle growth and increasing w...