234 ILLINOIS DAIRYMEN'S ASSOCIATION. 



tail, and infects the cows next to her, and they pass it on to 

 the next, and so it goes through the herd. If you notice such 

 a condition, the cow should be removed and given a chance to 

 abort by herself. Remove all the bedding, and put whitewash 

 all over the floor, with a considerable amount of carbolic acid 

 in the mixture. By taking these precautions, you will perhaps, 

 by being persistent for several years, get rid of it. But if you 

 are slack with it, one cow is able to infect the whole herd, and 

 your treatment will count for nought unless you are very per- 

 sistent about caring out these suggestions. 



A Delegate : — What about any danger in using that car- 

 bolic acid about the barn, and its affecting the milk? 



Mr. Glover : — I don't think there will be any danger, if a 

 man is reasonably careful. There seems to be good results 

 coming from injecting a solution of carbolic acid into a cow's 

 neck, or feeding it in the grain. You can feed her, beginning 

 with twenty drops a day, diluted to about a two per cent solu- 

 tion, I should think. And then you can increase that to about 

 fifty or sixty drops a day, and we have good reports coming to 

 us. about feeding, and we have reports, on the other hand, stating 

 it does no good. 



A Delegate: — In case a cow does not get rid of the after- 

 birth, what is the proper method? And will this same solution 

 that you speak of be a good cleanser? 



Mr. Glover : — It would be a good cleanser. Authorities are 

 somewhat divided on what to do with the after-birth. Some 

 believe if it has not passed from the animal in thirty-six hours, 

 it is better for a man to put on a rubber glove and remove it. 

 Others claim that they lose more cows by doing that, for, in 

 many cases, the uterus becomes infected and the cow dies from 

 blood poisoning. Prof. Haecker does not believe much in 

 removing the after-birth by hand. Veterinarians do it a great 

 deal. In any case, this solution is a good disinfectant. 



A Delegate : — Is there any danger of destroying the life of 

 the semen bv disinfectant? 



