title: The effect of natural worm loss on the estimate of anthelmintic activity in an anthelmintic test with Haemonchus contortus.
mesh_terms: D000018:Abomasum / Q000469:parasitology; D000284:Administration, Oral; D000818:Animals; D006188:Haemonchiasis / Q000188:drug therapy / Q000469:parasitology / Q000662:veterinary*; D007421:Intestine, Small / Q000469:parasitology; D007978:Levamisole / Q000008:administration & dosage / Q000627:therapeutic use*; D012756:Sheep; D012757:Sheep Diseases / Q000188:drug therapy / Q000469:parasitology*; D014252:Trichostrongyloidiasis / Q000662:veterinary*
chemical_list: D007978:Levamisole