Oxytetracycline Hydrochloride Injection is a tetracycline broad-spectrum antibiotic dedicated to livestock and poultry, with oxytetracycline hydrochloride as the main component. It exerts antibacterial effects by inhibiting bacterial protein synthesis. It has good inhibitory effects on Gram-positive bacteria (such as streptococci, staphylococci, etc.), Gram-negative bacteria (such as Escherichia coli, Salmonella, etc.) and mycoplasma. It is suitable for the treatment of respiratory infections (such as pneumonia, bronchitis), digestive tract infections (such as gastroenteritis), skin and soft tissue infections and mycoplasmosis caused by sensitive bacteria in livestock and poultry (such as pigs, cattle, sheep, chickens, etc.), such as swine dysentery, bovine pasteurellosis, chicken chronic respiratory disease, etc. Administered by intramuscular injection, the drug can be quickly absorbed and distributed to the whole body tissues, rapidly reaching effective blood concentration, and timely controlling infections. It is a commonly used drug in farms for preventing and treating bacterial and mycoplasma infections in livestock and poultry.