title: Observations on the dynamics of worm burdens in lambs infected daily with Ostertagia circumcincta.
mesh_terms: D000818:Animals; D005243:Feces / Q000469:parasitology; D005260:Female; D008297:Male; D010028:Ostertagia / Q000254:growth & development*; D010029:Ostertagiasis / Q000469:parasitology / Q000662:veterinary*; D010270:Parasite Egg Count; D012756:Sheep; D012757:Sheep Diseases / Q000469:parasitology*; D014252:Trichostrongyloidiasis / Q000662:veterinary*