MILK FEVER. 41 



which was usually six to eight weeks. But when 

 I embarked in the certified milk business I was 

 compelled to have a uniform quantity of milk 

 which necessitated having cows freshening at 

 all times of the year. Then my experience with 

 milk fever commenced and continued to make 

 me losses until it was discovered that oxygen 

 injected into the udder through the teats was 

 a sure cure. Since then I have had no losses 

 with milk fever. 



Air Injection Cure. — ^Later it was learned that 

 pure air accomplished the same results as did 

 the oxygen and it is much less expensive as well 

 as always ' ' on tap. ' ' All dairymen should have 

 ready for use an apparatus for forcing air into 

 the udder, but in case it is not at hand the bi- 

 cycle pump may be used, taking care to have it 

 cleansed as thoroughly as possible before using. 

 The accompanying illustration shows the ap- 

 paratus for injecting air. Remember it must 

 be kept clean and sterile; otherwise the udder 

 may become infected from it. 



