A field study of nematode parasite populations in the lactating ewe.
D000818:Animals; D000871:Anthelmintics / Q000627:therapeutic use; D005260:Female; D007774:Lactation; D009348:Nematoda / Q000302:isolation & purification*; D009349:Nematode Infections / Q000188:drug therapy / Q000662:veterinary; D011247:Pregnancy; D012756:Sheep; D012757:Sheep Diseases / Q000188:drug therapy; D014251:Trichostrongyloidea / Q000254:growth & development / Q000302:isolation & purification
D000871:Anthelmintics