184 ILLINOIS STATE DAIRYMEN'S ASSOCIATION 



turnips before milking, the percentage of opinions rating 

 the milk normal in flavor was increased from 6.7 to 28.9 

 per cent, and those rating the milk normal in odor were 

 increased from 4.2 to 22.9 per cent. 



The percentage of opinions rating the samples very 

 slightly off in flavor was increased from 25.8 to 35.7 per 

 cent, and the percentage rating the samples very slightly 

 off in odor was increased from 18.7 to 35.3 per cent by 

 aeration. Before aeration 34.2 per cent of the opinions 

 rated the samples off in flavor, which was reduced to 15.7 

 per cent after aeration. Likewise the percentage of opin- 

 ions rating the milk as slightly off in flavor was reduced 

 from 33.3 to 19.7 per cent. 



A similar effect took place with the odor. Before 

 aeration 39.6 per cent of the opinions rated the milk off in 

 odor of the milk very slightly off and slightly off, respect- 

 slightly off which was reduced to 23.7 per cent by aeration. 

 Effect of Feeding Turnips on the Flavor and Odor of Cream. 



After aeration, some of the milk produced by cows 

 receiving 30 pounds of turnips one hour before milking was 

 set aside for 24 hours, after which samples of cream were 

 skimmed off by hand and judged for flavor and odor. A 

 higher percentage of off flavors and odors was found in this 

 cream normal in flavor and 24.7 per cent rated it normal in 

 obtained. Very slightly off and slightly off flavors and 

 odors, however, were less frequent in the cream than in the 

 milk. 



Out of a total of 81 opinions on 15 samples of cream 

 skimmed from the aerated milk, 32.1 per cent rated the 

 cream normal in flavor and 24.7 per cent rated it normal in 

 odor. This is practically the same as the milk from which 

 it was skimmed, as 30.9 per cent rated the milk normal in 

 flavor and 25.9 per cent rated it normal in odor. Of the 

 opinions designating very slightly off and slightly off fla- 

 vors and odors, the greater percentage rated the milk in 

 these groups: 40.7 and 21 per cent rated the flavor of the 

 milk very slightly off and slightly off, respectively, while 

 23.5 and 18.5 per cent gave similar ratings to the cream. 

 Likewise, 39.5 and 24.7 per cent of the opinions rated the 



