title: The effect of the plane of nutrition on parasitism by Ostertagia spp. in the lactating ewe.
mesh_terms: D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001835:Body Weight; D005243:Feces; D005260:Female; D007774:Lactation; D010270:Parasite Egg Count; D011247:Pregnancy; D011270:Pregnancy, Animal; D012756:Sheep; D012757:Sheep Diseases / Q000209:etiology*; D014252:Trichostrongyloidiasis / Q000209:etiology / Q000662:veterinary*