220 



FARM AND SCHOOL PROBLEMS. 



Breeds of Dairy Cows. 



The breeds of dairy cattle named in the order of their 

 popularity in the United States are given in the following list 

 together wjth some distinguishing feature in products : 



1. The Jersey, for butter production. 



2. The Holstein-Friesian, for market milk. 



3. The Guernsey, for quality of cream. 



4. The Ayrshire for home milk and cheese. 



Some of the less common dairy breeds in the United States 

 are: French Canadian, and Dutch Belted. 



The Dairy Type. 



There are two ways of judging the dairy cow. 



1. The use of the Babcock test and the milk scale. 



2. Selecting a cow from physical characteristics. 



The first method is an infallible test for determining the true 

 income from the cow. 



The second method is not a sure and final test. 



FIG. 4. Different styles of hand testers. To get accurate results, 

 the tester should run smoothly, and be given the proper number of 

 revolutions per minute. The lid must be kept on while in motion. The 

 capacity of tester will depend upon the size of the dairy. 



