IN CATTLE:Treatment of respiratory infections with susceptible strains of Pasteurella multocida, Mannheimia (Pasteurella) haemolytica and Mycoplasma bovis.Treatment of acute Escherichia coli mastitis susceptible to marbofloxacin during the lactation period.IN SOWS:Treatment of Metritis-Mastitis-Agalactic Syndrome with bacterial strains sensitive to marbofloxacin.