The life cycle of Oesophagostomum columbianum (Curtice, 1890) in sheep.
D000818:Animals; D005243:Feces; D005260:Female; D007814:Larva / Q000033:anatomy & histology / Q000254:growth & development; D008297:Male; D009814:Oesophagostomiasis / Q000662:veterinary*; D009815:Oesophagostomum / Q000033:anatomy & histology / Q000254:growth & development*; D010270:Parasite Egg Count; D012756:Sheep; D012757:Sheep Diseases; D013997:Time Factors