title: Morphology of the free-living stages of Nematodirus spathiger with some observations on their development under laboratory conditions.
mesh_terms: D000818:Animals; D005243:Feces / Q000469:parasitology; D007421:Intestine, Small / Q000469:parasitology; D007814:Larva / Q000033:anatomy & histology / Q000254:growth & development; D010270:Parasite Egg Count; D012756:Sheep; D012757:Sheep Diseases / Q000469:parasitology; D013696:Temperature; D013997:Time Factors; D014251:Trichostrongyloidea / Q000033:anatomy & histology* / Q000254:growth & development; D014252:Trichostrongyloidiasis / Q000469:parasitology / Q000662:veterinary