Preconditioning feedlot calves.
D000821:Animal Feed; D000818:Animals; D001912:Bovine Virus Diarrhea-Mucosal Disease / Q000517:prevention & control; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control*; D007241:Infectious Bovine Rhinotracheitis / Q000517:prevention & control; D007922:Leptospirosis / Q000517:prevention & control / Q000662:veterinary; D012766:Pasteurellosis, Pneumonic / Q000517:prevention & control; D014611:Vaccination / Q000662:veterinary