%0 Conference Proceedings %T Isolation and identification of the causative bacterial agents of egg contamination in ostrich flocks of northeast Iran %A Ghaniei, Abolfazl %A Ghafouri, Seyed Ali %A Edalatian, Mohammad Sadegh %A Tohidi, Emadodin %A Kargar, Seyyed Ali %J هفتمین کنگره بین المللی دامپزشکی طیور %D 2020