Used in veterinary medicine to treat bacterial infections in animals, particularly in poultry, cattle, and swine. Effective against a wide range of Gram-negative and some Gram-positive bacteria. Commonly administered to control respiratory, urinary, and gastrointestinal infections. Often used in aquaculture to manage infections in fish. Its broad-spectrum activity makes it a choice antibiotic in livestock farming, though its use is regulated to prevent antibiotic resistance development.