Observations on the pathogenic effects of Trichuris ovis in sheep under drought conditions.
D000818:Animals; D005260:Female; D008297:Male; D011247:Pregnancy; D011270:Pregnancy, Animal; D011725:Pyridines / Q000627:therapeutic use; D012756:Sheep; D012757:Sheep Diseases / Q000209:etiology*; D014257:Trichuriasis / Q000188:drug therapy / Q000662:veterinary*; D014887:Weather
D011725:Pyridines