Quinolone antibiotics. Enrofloxacin is a broad-spectrum antibacterial drug specifically designed for animals. Its antibacterial mechanism is to act on the DNA gyrase of bacteria, interfering with the replication, transcription, repair, and recombination of bacterial DNA, resulting in the inability of bacteria to grow and reproduce normally and die. Its effect has a significant concentration dependence, and the best therapeutic effect can be achieved when the blood drug concentration is greater than 8 times the MIC. It has good effects on Escherichia coli, Salmonella, Klebsiella pneumoniae, Brucella, Pasteurella, Actinobacillus pleuropneumoniae, Erythromycin, Proteus, Serratia mucilaginosus, Corynebacterium pyogenes, Bordetella sepsis, Staphylococcus aureus, Mycoplasma, Chlamydia, etc. It has weak effects on Pseudomonas aeruginosa and Streptococcus, and weak effects on anaerobic bacteria. Has a significant antibacterial effect on sensitive bacteria.

Quinolone antibiotics. Used for bacterial diseases and Mycoplasma infections in chickens, such as Escherichia coli, Salmonella, dysentery, Pasteurella, and Mycoplasma sepsis.