We’ve been doing it all wrong

Working with cattle producers to right the parasite control ship

Abstract

Anthelmintic resistance in cattle is a growing concern with widespread resistance reported, especially to the avermectin drugs. Treatment of all animals, use of long-acting products, and lack of seasonally strategic plans have all contributed to the problem, along with other factors. Beef cattle veterinarians and producers should come to terms with this reality and start testing for anthelmintic resistance at the level of production groups. Based on individual herd data, holistic and refugia-based parasite control programs should be developed which include considerations of nutrition, climate, strategic selection of animals for treatment, and pasture management.