In this interview, New Zealand’s AgResearch parasitologist and team lead Dr. David Leathwick, discusses how addressing parasite resistance using the specifics of a farmer’s own operation has greatly increased awareness of the pressure and cost of resistance.
Unless the situation is really bad, farmers can’t necessarily see the effects of anthelmintic resistance. Putting a dollar value to the cost of resistance helps them understand the strategies behind management control practices.
Cattle quarantine is one of the most important management practices in controlling parasite resistance. Because of animal transfers, resistance is moving from farm to farm.
Treatment considerations affect resistance. Long active dewormers make it difficult to control refugia.
Further information can be found in the 2019 October issue of Bovine Veterinarian.