Used primarily as a growth promoter in animal feed, it enhances feed efficiency and promotes weight gain in livestock, particularly poultry and swine. Its mechanism involves improving nutrient absorption and metabolic efficiency, leading to better overall animal health and productivity. Additionally, it has been utilized to reduce the incidence of certain bacterial infections in animals, contributing to improved herd or flock health. However, its use is regulated in many regions due to concerns about antibiotic resistance and residue in animal products.