Controlling endoparasites on equine stud farms

Abstract

Resistance to all of the licensed classes of anthelmintics is now widespread and targeted worming strategies are advocated to reduce selection pressure and delay the onset of anthelmintic resistance. Targeted strategies of worm control are relatively straightforward in adult horses but where youngstock are present the situation becomes more complicated. Youngstock are more susceptible to infection and clinical disease and additional parasites have to be considered in control programmes. Despite the additional complexity, targeted worming strategies can be employed on breeding establishments, and indeed should be, as owners of young horses have the most to lose if anthelmintic resistance develops.