Abstract
The aim of this study was to evaluate and compare the outcome of right flank colostomy technique and coloanal reconstruction technique in treating atresia coli in calves.
Materials and methods: All newly born calves (n= 59) with lack of feces were admitted to the Department of Surgery, Anesthesiology and Radiology, Kafrelsheikh University, between May 2011 and November 2015. After clinical and radiographic examinations, calves with atresia coli were subjected to either right flank colostomy or coloanal reconstruction technique, and outcome results after surgery were recorded.
Results: Of 59 calves with intestinal atresia, 16 male calves were confirmed atresia coli and treated surgically. Right flank colostomy was performed in 7 calves, two calves died within 24 hours after surgery. Two calves died after short period of surgery due to peritonitis and one was slaughtered after 1 month due to recurrent colonic prolapse. Two calves reached 2 months old with weight less than 60 kg. Coloanal reconstruction was performed in 9 calves; one calf died during surgery due to hypothermia. Three calves died after short period of surgery due to peritonitis. One calf observed colonal prolapse and treated with purse string suture. One calf was slaughtered at 50 days after recurrent diarrhea. Three cases reached 2-3 months old with weight up to 80 kg.
Conclusion: The results of the current study suggested that the coloanal reconstruction technique seemingly has a beneficial effect on long-term for treatment of atresia coli in calves than right flank colostomy technique.

Key words: Calves, Coloanal, Colonic atresia, Colostomy