Thirty-two female Wistar albino rats were divided into four groups Group-1 (n=8) only normal saline was administered intraperitoneally. Group-2 (n=8) first serum saline was administered intraperitoneally and 30 minutes later 20 Gy radiation was applied to abdominopelvic region. Group-3 (n=8) only amifostine 200 ml/kg was administered intraperitoneally and radiation was not applied. Group-4 (n=8) first amifostine 200 ml/kg was administered intraperitoneally and 30 minutes later 20 Gy radiation was applied to abdominopelvic region. On the 5th day after radiation, samples of mesenteric lymphtissues and cecal contents were taken by laparotomy for microbiological culture.