Fecal egg output of lambs in relationship to Haemonchus contortus burden.
D000018:Abomasum; D000818:Animals; D005243:Feces; D005260:Female; D010063:Ovum; D010270:Parasite Egg Count; D012756:Sheep; D012757:Sheep Diseases; D014251:Trichostrongyloidea / Q000033:anatomy & histology / Q000502:physiology; D014252:Trichostrongyloidiasis / Q000662:veterinary*