42 



DAIRY FARMING 



upon the Holstein on account of the large production of this 

 valuable by-product. 



When selling butter-fat, cream or butter, the total quan- 

 tity of fat and not the percentage of fat is the important 

 point. For cheese making and for market milk, the total 

 solids, and not fat alone are what is wanted. 



It is impossible to give data that are entirely satisfactory 

 regarding the relative production of the breeds. The best 

 figures the author has been able to gather are brought to- 

 gether in Table 10. These are yearly records of pure-bred 

 animals as reported by experiment stations in the United 

 States for animals owned by them. It is assumed that the 

 conditions under which these records are made are fairly 

 comparable with and certainly no more favorable than those 

 found in good herds owned by individuals. 



TABLE 10. PRODUCTION PER YEAR OF Cows OWNED BY EX- 

 PERIMENT STATIONS 



INDIVIDUAL SELECTION 



36. Selection of Individual Cows. The success of a dairy 

 farmer depends more upon the selection of the individuals 

 within the breed than it does upon the choice of a breed. 



