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Serial passage of Haemonchus contortus in resistant and susceptible sheep
1Department of Animal Science, University of New England, Armidale, N.S.W., Australia.
Veterinary Parasitology
|June 1, 1988
Abstract:
A recently isolated field strain of Haemonchus contortus was passaged through resistant (repeatedly reinfected) and susceptible (immunosuppressed) sheep for six and nine generations, respectively. Infectivity of the resulting serially passaged strains was not significantly different when tested in groups of 1-year-old susceptible sheep.