title: Gastro-intestinal nematode parasite populations in ewes and lambs and the origin and time course of infective larval availability in pastures.
mesh_terms: D000818:Animals; D001315:Australia; D001835:Body Weight; D004197:Disease Reservoirs; D005243:Feces; D005260:Female; D007411:Intestinal Diseases, Parasitic / Q000453:epidemiology / Q000209:etiology / Q000662:veterinary*; D007814:Larva; D008297:Male; D009349:Nematode Infections / Q000662:veterinary*; D010270:Parasite Egg Count; D006109:Poaceae; D012621:Seasons; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology / Q000209:etiology*; D013272:Stomach Diseases / Q000453:epidemiology / Q000209:etiology / Q000662:veterinary*; D014252:Trichostrongyloidiasis / Q000453:epidemiology / Q000209:etiology / Q000662:veterinary; D014887:Weather