Contagious Abortion 877 
by using a & per cent solution of carbolic acid or a 
1 to 1,000 solution of corrosive sublimate, after the 
stall has been scraped and all loose litter burned. 
After using the antiseptic, the stall should be treated 
to a good coat of whitewash. The aborted calf and 
the membranes are to be destroyed by burying deeply 
or burning, and the vagina and uterus washed out every 
day with a solution of corrosive sublimate (1 part to 
1,000 parts of water). The tail and adjacent parts are 
also to be washed with this solution. Tablets of 
corrosive sublimate can be procured from druggists, 
with directions for use. This treatment of the vagina 
should be continued as long as the discharge is ob- 
served, and the adjoining parts should be washed daily 
for ten days afterward. 
No cow that has aborted should be bred until some 
time after all discharge has ceased. For two days 
before breeding, the vagina should be washed out with 
the 1 to 1,000 solution of corrosive sublimate; the day 
she is bred, warm water should be used in its place, as 
the corrosive sublimate will destroy the semen. In 
some cases, cows become barren after abortion. Clean- 
liness, the free use of antiseptics, isolation of infected 
cows, and precautions against breeding to infected bulls 
are the best methods of combating this disease. The 
disease seems to “wear itself out” and disappear from 
a herd after a time. 
A method of detecting contagious abortion by an 
examination of the blood of a suspected animal, known 
as the “complement fixation test,” gives excellent 
results. The test must be made by an expert. 
