168 



Animal Castration 



vagina and place knife — with bladed guarded — against roof of 

 vagina immediately over the cervix. (See Fig. 142.) 



6. With left hand raise handle of spajdng speculum and make 

 downward and forward pressure sufficient to stretch walls of 

 vagina taut. 



7. TJnguard blade of knife and thrust it through the vaginal 



Fig. 142 — Making Incision Through Vaginal Roof. A, Right Arm; B, Uterus; C, 

 Rectum; D, Vulva; E, Spaying Speculum; P, Vagina; G, Cervix; H, Urinary Bladder; 

 I, Broad Ligament; J, Rectum; K, Left Hand; L, Ovary; M, Point of Knife; N, Perfora- 

 tion in Roof of Vagina. 



