Serial passage of Haemonchus contortus in resistant and susceptible sheep.
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.
Albers
G A
GA
Department of Animal Science, University of New England, Armidale, N.S.W., Australia.
Burgess
S K
SK
D000818:Animals; D004198:Disease Susceptibility / Q000662:veterinary; D005243:Feces / Q000469:parasitology; D006188:Haemonchiasis / Q000276:immunology / Q000662:veterinary*; D006189:Haemonchus; D007113:Immunity, Innate; D008297:Male; D010270:Parasite Egg Count / Q000662:veterinary; D012756:Sheep / Q000276:immunology / Q000469:parasitology; D012757:Sheep Diseases / Q000276:immunology / Q000469:parasitology*; D014252:Trichostrongyloidiasis / Q000662:veterinary*