10 Jtjxe, 1916.] Contagious Abortion. 327 



Treatment. 

 To be carried out in the order as liereunder indicated: — 



1. Wash thoroughly the rump, hip to hocks, escutcheon, tail, 

 back passages (outside) of cows nearest calving, and which have not pre- 

 viously aborted, two or three times a week for a period of three weeks 

 with a 6 per cent, solution of copper sulphate or 1 in 1,000 solution of 

 corrosive sublimate. Follow this with injections into genital passage of 

 lukewarm corrosive sublimate — 1 in 3,000. Repeat whole process after 

 an interval of three weeks. 



2. Treat in same way — 



(a) Cows now in milk, whetlier in calf or iiot, and which have 



not previously aborted, twice a week. 

 (h) Cows in which longest time has passed since they aborted, 

 (c) Cows which have recently aborted, once a day for one or two 



weeks, then two or three tim.es a week for two weeks, or 



until discharge has stopped. 



3. The Bull. — Clip long hair from sheath and belly. Wash skin 

 surrounding with same solution as for cows. Subsequently flood interior 

 of sheath witli corrosive sublimate solution 1 in 3,000, closing the open- 

 ing with hand and manipulating fluid well into furthermost parts of 

 sheath. 



(Note. — This should be done the da}^ before bull is required for ser- 

 vice, and repeated two or three times for a week after each service. The 

 bull may be required to be thrown for the purpose.) 



4. Newly-born calves born to full time should be sponged all over 

 with the copper sulphate solution before being allowed to mix with 

 h^rd 



5. Cows which have aborted should not be served for at least four 

 months after aborting. 



Premises. 



1. {a) Thoroughly sweep down whole iiitei'ior of milking shed, collect 



refuse, and dispose of as indicated in paragraph ((). 

 (h) Scrub bails, mangers, and other woodwork with hot solution 

 of washing soda (1 lb. to 4 gallons of water). 



(c) Collect manure, urine, and other refuse in convenient recep- 



tacles at shed door, convey to place inaccessible to cows, 

 and thoroughly sprinkle with 6 per cent, copper sulphate 

 solution. 



(d) Thoroughly spray ceilings, bails, ix)sts. and tloor witli b per 



cent, copper sulphate solution. 



2. Clean up all refuse immediately after each milking, and treat as 

 in paragraph (c). 



3. Repeat spraying of shed with the solution of copper sulphat<» 

 at least once every week during treatment of cows, and siilxsequently 

 limewash thoroughly with 1 lb. of crude carbolic acid to fonr gallons of 

 freshly-made liniewash. 



Note. — Care should be exercisetl in using ;il)«)vc solutions on account 

 of their poisonous properties. 



