Inhibited development of Ostertagia spp. and Cooperia spp. in naturally acquired infections in calves

Abstract

Extract

Inhibition of the development of the larval stages of parasitic nematodes in their final host is a common phenomenon in many host/parasite systems and the fact that the inhibited forms are capable, at a later stage, of resuming their development has been recognized for some time (for reviews see Armour et al., 1969a; Michel, 1971).