272 Veterhiary Obstetrics 



reined3\ Artificial insemination, as described on page 278, may 

 be indicated in some cases. 



V. Infectious Diseases. 



Infectious diseases, as a cause of sterility, have already re- 

 ceived attention on pages 68 to no. The venereal infections 

 naturally tend to produce sterility, though in markedly varying 

 degrees. 



In addition to these, there are various infections which tend 

 to cause the death of the fetus, and which we shall discuss in 

 the chapter upon Abortion. Whi^e abortion is not identical 

 with sterility, the results of it, by causing the death of the fetus 

 prior to its expulsion, are essentially identical, from an economic 

 standpoint, with a failure of fertihzation itself. 



