This is a major abomasal worm of sheep and goats, that is found worldwide. This worm is of great economical importance in both causing mortality and decreased weight gain in production animals. Resistance to all types of anthelmintics is common amongst the wild species making control and treatment difficult. | This is a major abomasal worm of sheep and goats, that is found worldwide. This worm is of great economical importance in both causing mortality and decreased weight gain in production animals. Resistance to all types of anthelmintics is common amongst the wild species making control and treatment difficult. |