346 SWINE PRACTICE 



half ration the day before they are to be castrated and withholding 

 feed on the day of castration until after the operation. 



INSTRUMENTS 



The instruments selected will vary in accordance with the desire of 

 the operator. In selecting instruments those having defects or faulty 

 construction should be rejected. Instruments for castration should 

 contain materials that will permit of sterilization. The usual instru- 

 ments selected consist of a castration knife, one or more compression 

 forceps and a basin for antiseptic solution. 



RESTRAINT 



To restrain a pig for castration an assistant should seize it by the 

 hind legs and swing its bodj- between his knees. The assistant thus 



Fig. 104. Swine and sheep emasculator. (Wlhite's Castration.) 



straddling over the pig's back exposes the scrotum for the operator. 

 Larger hogs may be restrained by -seizing the hind leg and ears and 

 throwing the animal on his side, placing one knee on his neck and by 

 flexing the hind leg expose the scrotum. Very large boars may be 

 castrated in the standing position, restraint to be affected by means of 

 a snare. 



TBCHNIC 



The scrotum should be cleaned and washed with some good reliable 

 antiseptic. Some operators recommend the use of a moderately stiff 

 bristle brush to remove the dust and dirt without the application of 



