title: Studies on Haemonchus contortus. VIII. Attempts to protect suckling lambs against infestation with H. contortus.
abstract: A group of 12 Merino lambs, 3,5 months of age, which were still suckling, were each dosed with 40 000 infective larvae of Trichostrongylus axei on Day 0. From Day +62-Day 64 each of these lambs and those of a 2nd group of 11 controls were dosed with 30 000 infective larvae of Haemonchus contortus, and all the lambs of both groups were killed on Day +90. Attempts to use T. axei to protect them against subsequent challenge with H. contortus were unsuccessful.
mesh_terms: D000818:Animals; D006189:Haemonchus / Q000276:immunology*; D007114:Immunization; D007814:Larva; D012756:Sheep / Q000276:immunology*; D014251:Trichostrongyloidea / Q000276:immunology*; D014253:Trichostrongylosis / Q000662:veterinary