background:cystitis and pyelonephnitis in ruminants mostoften result from ascending urinary tract infection (uti).objectives: investigating the prevalence of urine infection andits relationship with histopathological findings of bladder andkidney. methods: this study was carried out on 353 slaughteredbuffalos (143 female and 210 male) at ahvaz abattoir, southwest ofiran. after slaughter, urinar...