Fig. 30. — Impregnator Syringe. 



282 Western Live-stock Management 



With the impregnating syringe, the operator allows 

 the stallion to serve in the normal manner, then uses a 

 syringe to go into the vagina, or if the semen has been 

 injected into the uterus proper, to go into the uterus 

 and collect the semen by means of the syringe. The 

 type of syringe shown in Fig. 30 is now being very success- 

 fully used in obtaining the semen either from the uterus 

 or from the vagina. After withdrawing the semen, the 



operator may proceed 

 directly to the other 

 mares, insert the end of 

 the syringe into the 

 uterus of the mare, and 

 deposit some of the fluid, or he may fill capsules from the 

 fluid and insert capsules into the other mares. In these 

 cases it is necessary to have a vessel of water from 95° 

 to 101° temperature, so that the syringe and semen may 

 be held at a constant temperature, and also that the 

 instruments and materials be kept out of the direct sun- 

 light. Sanitary precautions are also absolutely necessary, 

 as the spermatozoa are very delicate, and have to be 

 handled with every degree of care. 



With the capsule system of breeding, the stallion is 

 allowed to serve one mare in the usual manner; the 

 operator then takes a gelatine capsule in the hollow 

 of his hand, inserts his hand into the vagina and 

 scoops the capsule full of semen. He then withdraws 

 his arm carefully, holding the capsule in the hollow of 

 his hand to protect from light, and holding his finger over 

 the opening to prevent the loss of fluid. He immediately 

 goes to another mare and inserts his hand and the capsule 

 into the ^'agina, and pushes the capsule carefully on 

 into the uterus. This operation is very successful if the 



