FOURTH ANNUAL YEAR BOOK — PART VI. 395 



fecting other cows. Hence, discharging cows should be kept apart 

 from the herd, 



"3, Disinfect the premises. This procedure should be executed 

 with the most exacting care. Partial or ineflacient disinfection is 

 practically useless. To disinfect, where fumigation with vapor of 

 formaldehyde can not be employed, the spray pump furnishes the 

 best means. It should be borne in mind that disinfectants do not de- 

 stroy germs that they do not come in contact with. So, all large ac- 

 -cumulations of bedding, forage and manure should be removed and 

 €very place that may harbor a germ should be reached with the dis- 

 infectant. Especial care should be used to drive it into every crack, 

 knothole, behind every loose board, on top of every beam, and into 

 every partly concealed hole, as well as upon every exposed surface. 



"A 5 per cent solution of good (not crude) carbolic acid may be 

 used for this purpose, 



"Following the disinfection by spraying and the cleaning of the 

 stable it may be whitewashed with lime wash containing one pound 

 •of fresh chloride of lime to each three gallons of water. This may be 

 applied with a brush, or, better, with a spray pump, 



"The barn yards should be well cleaned out, the manure being 

 spread in some field that the cattle do not have access to. The bot- 

 tom of the yard should be well scraped and the earth stained with 

 leachings from manure should hs removed. Then the surface of the 

 yard may be flushed with a saturated solution of sulphate of iron or 

 thickly spread with lime. The outer wall of the barn, facing on the 

 yard, and the adjoining fences, should be disinfected or whitewashed. 



'•4. Irrigate the genital passages of the cows that have aborted. 

 The purpose of this procedure is to disinfect the genital passages, A 

 convenient method is as follows: Hang a bucket containing the anti- 

 septic solution back of the cow, T.o a spigot on the side of this 

 bucket attach a rubber hose five eighths of an inch in diameter and 

 about six feet long. Insert the hose in the vagina, and, if possible, 

 into the uterus of the cow. Allow from three to four quarts of the 

 warm solution to fiow into the cow and out. Take a fresh hose and 

 Irrigate the next cow, allowing the first hose to soak in an antiseptic 

 solution in the meantime. 



This treatment should be repeated every second or third day so 

 long as there is any discharge from the cow. Afterwards it may be 

 used once or twice a week. As appropriate solutions the following 

 are recommended: Lysol, 1 per cent; creolin, 2 per cent; bichloride 

 of mercury, 1-3,000; carbolic acid, li^ per cent; boracic acid, 3 per 

 cent; permanganate 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 — Irrigate 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 by using 



