334 



ELEMENTS OF AGRICULTURE 



The total value of milk and its products is even more 

 than the value of the beef produced in the United 

 States. 



Milk 



296. Composition of Milk. Milk contains much more 

 nutriment than is commonly supposed. A quart of milk 

 contains about the same amount of nutriment as three- 

 quarters of a pound of beef. A quart of skimmed milk 

 contains as much nutriment as two-fifths of a pound 

 of beef. Milk is not only a good food, but it is a cheap 

 food as compared with meat and eggs. One hundred 

 pounds of good milk contains about: 



87 pounds of water. 



4 pounds of fat. 



5 pounds of milk sugar. 



3.3 pounds of casein and albumen. 

 0.7 pounds of mineral matter. 



297. Clean Milk. Milk is an excellent breeding place 

 for germs of all kinds. It also absorbs odors from the air. 



These facts make it an 

 extremely perishable 

 product. As the de- 

 mand for milk in- 

 creases, there is a con- 

 stantly increasing de- 

 mand that the milk 

 shall be clean. There 

 are a number of con- 

 ditions that are essen- 



Fio. 170. A clean dairy bam. Note cement \\Q\ if milk is to keep 

 floor, tight ceiling, deep gutter, and driveway 

 for hauling out manure. SWCetand Clean: 





