^^^ Illinois State Dairymen's Association. 



As a precautionary measure in the dairy it is advisable in all 

 cases of eruptions, sores or diseased udders to milk such cows 

 last and thereby avoid any possible chance of transmitting the 

 disease from one cow to another. 



DISCUSSION. 



Member: — A few years ago I had a cow whose teats were 

 all rough from cow pox. 



Dr. Ryder : — They come in scabs. Most of you know what 

 it is to have one of those pits because this cow pox is used for 

 vaccination. 



Member: — What about the garget outfit? 



Dr. Ryder: — If you use those things as directed they are 

 usually beneficial. Garget as a term now includes" most of the 

 diseases of the udder. The real garget, as the term was first 

 used, meant a certain disease of the udder, but now it means 

 inflammation and several other things, and the remedies used are 

 antiseptic and the injection is in the teat, as I understand it. 



Member :^What is the cause of cow pox? 



Dr. Ryder: — It is supposed to be due to a germ. It is 

 traceable to man and it is used for vaccinating people. The germ 

 has never been discovered so as to know it is there, but it has 

 all the characteristics of a germ disease, that is it spreads from 

 one animal to another, so that without a doubt it is of bacteria 

 origin. 



Member: — One point I have had considerable trouble with 

 the gentleman did not touch. I do not know wliether it comes 

 under the head of inflamation, but it comes under the head of 

 big trouble. The first you know the cow milks hard, bye and 

 bye the end of the teat is a little sore, and after a while it gets 

 so we cannot milk that cow at all. 



Dr. Ryder : — That is a form of contagious trouble. I have 

 seen that where it passed through several dairies. I think it 

 is really contagious because it has been transmitted by inoculating 

 one cow after another. A good many times that extends up the 

 duct of the teat, and sometimes extends up the whole length of 

 the teat. Usually they close up. 



The Chairman :— Would it be of any benefit to lance that 

 or use a teat blister ? 



Dr. Ryder : — The teat blister is all right if you take pains 

 to heal them up, and now they have an instrument that runs into 



