Tetracycline Resistance among Isolates from Broilers in Iran: A Systematic Review and Meta-Analysis.

Background: Avian colibacillosis are infections caused by Avian Pathogenic which causes high morbidity, high mortality, and significant economic losses. Antibiotics such as tetracycline are an important treatment choice for colibacillosis in Iran. However, the irrational use of antibiotics has caused high antibiotic resistance.