THE CHEMICAL COMPOSITION OF MILK 



19 



VARIATIONS IN NORMAL COW S MILK 



While the composition of milk is quite stable, all the con- 

 stituents are more or less variable even in normal milks. 

 Koenig gives the following variations of the different constitu- 

 ents based on his study of several hundred samples collected 

 from many sources. 



AVERAGE VARIATION IN CONSTITUENTS OF Cow's MILK 

 (Koenig) 



Water 



Fat 



Casein 



Albumin 



Sugar 

 Ash . 



MAXIMUM 



90.69 

 6.47 

 4.23 

 1.44 

 6.03 

 1.21 



MINIMUM 



80.32 

 1.67 

 1.79 

 .25 



2.11 

 .35 



