386 Veterinary Medicine. 



Extinction of Contagious Abortion in a Herd. 1. Two separate 

 stables, or compartments, not having a common gutter should be 

 provided, one for the sound animals, and one for those that are 

 known to be affected, or that are open to suspicion. 



2. The cow or mare that shows symptoms of abortion, or that 

 has aborted, should at once be removed to the quarantine stable, 

 and her stall, including the gutter and drain leading from it 

 thoroughly disinfected. The whole stable should be whitewashed. 



3. The aborted foetus with its membranes, should be at once 

 removed and burned, or boiled, or deeply buried after it has been 

 thickly sprinkled with chloride of lime or other active disinfectant. 



4. The manure from the infected stable should be taken into an 

 enclosure into which no animals have access, and freely watered 

 with a solution of sulphate of copper (6 : 100). 



5. All in the quarantined stable and even those left in the gen- 

 eral stable, should have the external generative organs, the hips, 

 and the whole length of the tail washed once or twice a day with 

 an antiseptic solution. Carbolic acid or creolin (2 or 3 : 100) 

 makes a very safe and convenient agent, but copper sulphate 

 (6 : 100) or mercuric chloride (2 : 1000) may be substituted. 

 The colorless mercuric solution though effective and inodorous, 

 has an element of danger in it, when left in barns in large 

 quantities. 



6. Cows or mares that have just aborted, should have the 

 uterus irrigated daily for a week with a disinfectant solution. 

 Carbolic acid (1 : 100 with 1 sodium carbonate) or creolin (1 to 

 2 : 100) or mercuric chloride (1 : 1000 with 1 hydrochloric acid) 

 are good examples. Use a long rubber tube and funnel. They 

 should not be bred until all discharge has ceased. 



7. It is a good practice to keep a separate sire for the aborting 

 and quarantined suspected animals, but the bull for each herd 

 should, after each service, have his sheath injected with the dis- 

 infectant liquid, the orifice being held and the liquid pressed into 

 all parts and finally, the skin around the sheath must be well 

 washed with the same. 



8. All cows or mares in an aborting herd, or one from which 

 aborting animals have been removed within a year, should, after 

 delivery, be injected with a disinfectant for one week exactly as 

 if they had just aborted. This will guard against the danger 



