84 Bulletin 152. 



a large total amount of food, it being 315.13 pounds. Had she 

 given milk of as high a per cent of fat as when a four-year old, 

 No. 134, or when a three-year old, No. 82, she would have pro- 

 duced her fat much cheaper. 



Variation in Per Cent Fat. 



Table III contains such data as could be obtained from the 

 records concerning the per cent of fat and its variation in differ- 

 ent animals. Each record given here bears the same number as 

 corresponds to the animal in Tables I and II which bears that 

 record. The data given contains the number of days from calv- 

 ing to the beginning of the test, the average per cent of fat for 

 the week, the highest per cent of fat, the time of day at which 

 it was obtained, and the number of hours which elapsed between 

 that time and the previous milking ; also the same data concern- 

 ing the lowest per cent of fat, and the range of variation in per 

 cent of fat. 



