No. 6. DEPARTMENT OF AGRICULTURE. 159 



3. Disinfect the premises. 



This procedure should be executed with the most exacting care. Par- 

 tial or inefficient disinfection is practically useless. To disinfect, where 

 fumigation with the vapor of formaldehyde cannot be employed, the 

 spray pump furnishes the best means. It should be borne in mind that 

 disinfectants do not destroy germs that they do not come in contact with. 

 So, all large accumulations of bedding, forage and manure should be re- 

 moved and every place that may harbor a germ should be reached with 

 the disinfectant. 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 five 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 yard should be well cleaned out, the manure being spread in 

 some field that cattle do not have access to. The bottom of the yard 

 should be well scraped and the earth stained with leachings from manure 

 should be 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 well 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. To a spigot on the side of this bucket 

 attached a rubber hose five-eighths inch in diameter and about six 

 feet long. Insert the hose into the vagina and, if possible into the uterus 

 of the cow. Allow from three to four quarts of the warm solution to flow 

 into the cow and out. Take a fresh hose and irrigate the next cow, al- 

 lowing the hose first used to soak in an antiseptic solution in the mean 

 time. 



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 recom- 

 mended: Lysol, one per cent.; creolin, two per cent.; bichloride of 

 mercuiy, 1-3000; carbolic acid, one and one-half per cent.; boracic acid, 

 three per cent.; permanganate of potash, one per cent.; alum, one per 

 cent; chloride of zinc, two per cent. The last injection, two days be- 

 fore service, should be bicarbonate of soda, two per cent. 



5. Irrigate the sheath of the bull. 



The purpose of flushing out and disinfecting the sheath and the out- 

 side 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 en- 

 forced before and after each service. This is very important. The sheath 

 may be flushed out by 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 one per cent, solution of lysol is good for this purpose. 



