Drenching milking cows.
D000818:Animals; D000871:Anthelmintics / Q000627:therapeutic use*; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control*; D005260:Female; D006373:Helminthiasis / Q000517:prevention & control; D006374:Helminthiasis, Animal
D000871:Anthelmintics