TiiiKTy-sixni Annual Convention 979 



refuse to receive dairy products froui cows that are infected with 

 tuberculosis. We have either got tu guarantee that those products 

 have been pasteurized or guarantee to the consuming public that 

 our herds are free from this disease. I do not know just when 

 that time will come, but it is coming. Public sentiment is grow- 

 ing. The health officers of Chicago succeeded in getting through 

 such an ordinance, but public sentiment was not quite strong 

 enough to allow them to carry it into effect absolutely. We know 

 every great reform of this kind has its setbacks, but it comes up 

 again. It will be only a few years before there will be public sen- 

 timent in Chicago to back up L)r. Evans in this respect; and you 

 will have to guarantee that dairy products come from cows that 

 do not have this dread disease. Therefore the farmer might just 

 as well 2^1'epare for it. It is a barn disease; it is a question of 

 ventilation and a question of light in the stable. Someone asked 

 me if Jerseys are not more susceptible to the diesase than other 

 breeds. They forget that in tlie Island of Jersey tuberculosis is 

 unknown, they do not have it. When these animals are taken 

 away from their island where ventilation is not a problem for con- 

 sideration and the Dane, for instance, takes them up to his stone 

 barn, improperly ventilated, in a few years they contract tubercu- 

 losis. If you put any breed under improper conditions they will 

 contract the disease. If we will put our barns in proper shape 

 we can eradicate tuberculosis if we already have it. It is need- 

 less for veterinarians and health boards to say that we ought to 

 have a law passed compelling every dairyman to sell every animal 

 that reacts, until you first go down and clean up the barn, because 

 if 3'Ou put the cows back in the same quarters you will always 

 have tuberculosis. On the other hand, if the farmer will put in 

 the King system of ventilation with more light, in a few years 

 he will have no tuberculosis. 



If our cows have tuberculosis it is our fault, because we can put 

 in plenty of windows and ventilate the stable so that they will have 

 pure air to breathe and plenty of sunshine, and so eradicate the 

 disease in our own herds without the aid of a veterinarian. 

 Experiments have been made at C^hampaigii, 111., where they took 

 cows affected with tuberculosis and put them between other cows 

 in a welldighted and ventilated stable. They not only did not 



