CHAPTER IV. 



DAIRY PRODUCTS. 



The products of the dairy form an important part of 

 human food. Dairying is the leading animal industry of 

 our country, and must continue so indefinitely. Of all 

 animals the dairy cow is the most economical producer 

 of food for human beings. 



Milk Pail. 



A common practice on farms where sanitary 

 milk is produced. 



170. A fattening ox, gaining 15 pounds weekly, yields 

 1.13 pounds of protein (lean meat). A dairy cow during 

 the same time, and yielding 20 pounds of milk daily, 

 yields 7.46 pounds of protein in milk. How many times 

 better is the dairy cow as a protein producer than the 

 fattening ox ? 



171. During the week a fattening ox stores in his 

 body .22 pounds of mineral matter, while during the 

 same time a dairy cow secretes in her milk a total of 1.35 



72 



