144 ANNUAL REPORT OF THE Off. Doc. 



acid, 1^ per cent.; boracic acid, 3 per cent.; permaganate of 

 potash, 1 per cent.; alum, 1 per cent.; chloride of zinc, 2 per 

 cent. The last injection, two days before service, should be 

 bicarbonate of soda, 2 per cent. 



5. Irrigale the sheath of the bull. 



The purpose of flushing out and disinfecting the sheath and 

 the outside of the penis of the bull, is to prevent him from 

 carrying the germs of abortion from one cow to another. 

 This procedure should be enforced before and after each 

 service. This is very important. The sheath may be flushed 

 out bv using a small rubber hose and funnel. The end of this 

 hose is to be inserted into the sheath beside the penis, the 

 fore-skin is held together with the fingers and the antiseptic 

 *is poured into the funnel. A 1 per cent, solution of lysol is 

 good for this purpose. 



6. The long hair at the end of the bull's sheath should be cut off. 



Moreover, it is well to clip the hair from under the belly over 

 a circle one foot in diameter surrounding the opening of the 

 sheath. Then, by washing with a sponge this area can 

 easily be cleaned before each service. 



7. Wash off the external genitals of each cow every day. 



For this purpose use any of the antiseptics recommended 

 above. They can be applied with a clean sponge. The parts 

 washed should comprise the root of the tail, the anus, the 

 vulva and the surrounding skin for a distance of several 

 inches, and the corresponding portion of the tail. A sepa- 

 rate bucket and sponge should be used for the cows that 

 are pregnant and those that have recently aborted. 



8. Do not breed a cow for about ten weeks after she has aborted. 



About ten weeks are required for the thorough treatment of 

 a cow that has aborted and she should not be bred before the 

 expiration of this period. If she shows any discharge or 

 other indication of vaginal catarrh she should not be bred for 

 a longer period, or until the parts are in entirely normal 

 condition, 



9. A solution of carbolic acid may be administered subcutaneously 



to each pregnant cow. For this purpose use a 3 per cent, 

 solution of carbolic acid and of this inject 2 drachms every 

 ten days. Should this cause swelling in some individuals, for 

 these use a smaller amount. 

 10. Remove cows from the herd before th(\v abort, if possible. The 

 purpose of this is to prevent the re-infection of the ]>remises. 

 Of course, this cannot ahvays be done and when a cow aborts 

 in the cow stable thorough disinfection is again required. 



