Abstract:
Emery et al. (1999) reported that stronger protective immunity can be induced in neonatal lambs by trickle infection with Trichostrongylus colubriformis (Tc) larvae than in 4 m.o. lambs given a similar infection. Oral vaccination with live radiation-attenuated third stage infective larvae (ILV) could be a safer method of inducing immunity in neonate small ruminants than use of virulent larvae as a high proportion (~90%) of ILV fail to complete maturation in the host and those that do are sterile. Our study investigated the response to ILV of 222 Angora and 212 Cashmere goat kids on two commercial farms near Barraba in northern NSW, Australia.
