5o8 Vetermary Obstetrics 



studied and there is nothing known regarding the character of 

 the organism which causes the malady in each. 



The symptoms and course of the infection are essentially the 

 same as in the mare and cow, and the abortion usually occurs at 

 a corresponding epoch in gestation ; that is to say, they usually 

 abort early during the second half of pregnancy, but the abor- 

 tion may occur at any time. 



In the present state of our knowledge, we would apply the same 

 fundamental principles to the control of the disease which we 

 have suggested in the mare and cow. It is evident that we can- 

 not so effectively apply some of the measures in these small ani- 

 mals as in the larger ones. We cannot so well disinfect the male 

 genital organs and consequently need to take other equivalent 

 measures by isolating the male and not using him for breeding 

 purposes for a longer time than if we were able to thoroughly 

 disinfect the parts. Similar conditions prevail in reference to the 

 disinfection of the genital tract in the female, because we cannot 

 so readily introduce the hand into the uterus and make sure that 

 the afterbirth has been removed, nor can we readily introduce 

 disinfectants into the uterine cavity itself. Therefore, we will 

 generally need to isolate the aborted animals for a longer period 

 of time, until we can safely assume that disinfection has taken 

 place in a spontaneous manner, before we shall again permit them 

 to be bred and thus take the risk of continuing the spread of the 

 disease. Aside from these considerations, there is nothing in the 

 present state of our knowledge to suggest any variations in the 

 problem of control and eradication from that which we have al- 

 ready considered in connection with the disease in the mare 

 and cow. 



