56 



ANI.MAL CASTRATION 



scrotum with tiiiftiu-c of iodiii and allow it time to dr,y before making the 

 iiieisioii.s. 



Operative Teclinic for Castrating the Intra-Ahdejminal Ridejlinej 



(Miles' yo. 3). 



(a) Scrota' Incision — With a rubber "love on the left hand (K) and 

 Miles' hooked eastrating- knife (T) in the right hand (S), the point of the 

 >^heatli (V) is g-rasped with the left (R) and ti-aetion made upward and 

 forward, (l^'ig. 42.) Beginning well forward on tlie scrotum the knife 

 is drawn backward, making an incision (U) through the skin, sub- 

 cutaneous connective tissue and dartos only. This incision (l^) should be 

 five inches long, parallel to and one irich to the side of the raphe or 

 median line. (Figs. 42 and 43.) When tlie incision or incisions are 



Fig. 44 — Position of tlie fingers in opening and entering ttie inguinal canal. 



completed remove the rubber glove froai the previously washed left liand 

 and, if necessary, rewash botli liands before proceeding further. 



(b) Opening and Entering the Inguinal Canal — With the four fingers 

 of each hand, placed back to back, separate, by tearing, the tissues down 

 to the external al)df)minal ring, wliich is tlie entrance to the inguinal 

 canal. The next step is to lubricate with Surgical Jelly the scrotal 

 wound and the operating hand. Then proceed, by fixing the fingers in the 

 shape of a cone (Fig. 44) and using a limited amount of force, open and 

 enter the inguinal canal until the internal abdominal ring is reached. 

 Remember the direction of the canal is upward arid backward. The in- 

 ternal ring is the landmark for tlie site of entering the abdominal cavity. 

 You may expect to tind the ring at a distance of six to ten inches above 

 the scrotal incision, depending, of course, on the size of the animal. 



(c) Entering Abdominal Ciirity from Inguinal Canal — With the 



