Surgical rectification of congenital type II Atresia ani leading to rectovaginal fistula in cattle calves

Two female calves were presented to veterinary teaching hospital,department of clinical sciences,college of veterinary and animal sciences,jhang,pakistan with the complaint of retarded growth and absence of anal opening. in both cases,feces had been passing out through external genitalia. after clinical examination both the cases were diagnosed as the case of atresia ani leading to rectovaginal fistula and subjected to surgical interventions. after preoperative preparation,a circular skin incision was made at the bulge of site to explore the blind loop of rectum. the rectal pouch was grabbed and opened. the edges of rectal mucosa were sutured with skin to maintain the patency of opening. similarly,the edges of fistula within the vagina were also refreshed and sutured by using simple interrupted suture pattern. after 10 days of post-operative care both the calves got recovered successfully.