Effect of repeated anthelmintic treatment on the resistance of grazing calves to reinfection with helminths.
D000818:Animals; D000871:Anthelmintics / Q000008:administration & dosage*; D002417:Cattle / Q000254:growth & development*; D002418:Cattle Diseases / Q000517:prevention & control*; D009814:Oesophagostomiasis / Q000517:prevention & control; D014252:Trichostrongyloidiasis / Q000517:prevention & control / Q000662:veterinary*
D000871:Anthelmintics