2Sahar. H. Abdulmaged1KH ,. The Relative Change in Expression Level of Avian Pathogenic Escherichia coli -Associated Virulence Genes after Antibiotic Treatment. IJB [Internet]. 9Aug.2025 [cited 7Oct.2026];24(2). Available from: https://jige.uobaghdad.edu.iq/index.php/IJB/article/view/855