title: Epidemiology and control of gastrointestinal parasitism in lactating, grazing adult dairy cows using a morantel sustained release bolus.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000188:drug therapy* / Q000469:parasitology / Q000517:prevention & control; D003692:Delayed-Action Preparations; D005260:Female; D005767:Gastrointestinal Diseases / Q000188:drug therapy / Q000469:parasitology / Q000662:veterinary*; D007774:Lactation; D009349:Nematode Infections / Q000188:drug therapy / Q000469:parasitology / Q000662:veterinary*; D010029:Ostertagiasis / Q000188:drug therapy / Q000469:parasitology / Q000662:veterinary; D010270:Parasite Egg Count / Q000662:veterinary; D011247:Pregnancy; D012621:Seasons; D014251:Trichostrongyloidea; D014253:Trichostrongylosis / Q000188:drug therapy / Q000469:parasitology / Q000662:veterinary
chemical_list: D003692:Delayed-Action Preparations