Further characterization of a cattle nematode population with demonstrated resistance to current anthelmintics.

Anthelmintic resistance of gastrointestinal cattle nematodes Anthelminthicumresistentie van gastro-intestinale rundernematoden

Anthelmintic resistance of parasites in small ruminants, cattle and horses is increasing worldwide as a consequence of the over usage of the currently available products. In Belgium, Cooperia oncophora is the most common cattle nematode in which resistance, especially against macrocyclic lactones, occurs. Once resistance has been diagnosed, a change to another drug with a different mode of acti...

Strongyle anthelmintic resistance in horses and cattle from Greece

Gastrointestinal nematode parasitism is an important cause of livestock disease, reduced productivity and welfare. In most cases, control of parasites is based on the use of anthelmintics or on the combination of anthelmintics and pasture management or recently, other alternatives to the use of chemicals. However, the frequent use of anthelmintics can select for resistant nematodes. Anthelminti...

Update on Anthelmintic Resistance in Gastrointestinal Nematode Parasites of Cattle: How Does This Change Optimal Approaches to Control?

The identification of cattle nematode parasites resistant to multiple classes of anthelmintics in a commercial cattle population in the US.

Resistance to modern anthelmintics by ruminant nematode parasites is an increasing problem throughout the world. To date the problem has largely been reported in parasites of small ruminants, but there are increasing reports of such resistance in nematodes recovered from cattle. Until now there have been no published reports of drug resistant parasites from cattle in North America. In 2002 a pr...

A Study of Sheep Nematode Populations on Ten Commercial Properties on Kangaroo Island, South Australia

South Australian studies to investigate the epidemiology of nematode parasites of sheep have been carried out at Kybybolite, Minnipa and Turretfield ( Brown et al. 1985; Pullman et al. 1988). The epidemiological differences between Kybybolite and Turretfield are being investigated further. Recently, resistance to major groups of anthelmintics has been detected in sheep nematode populations in S...