40 



A STUDY OF FARM ANIMALS 



The value of the pure-bred sire on our American farms 

 is far greater than most people seem to realize. When breed- 

 ing males are not pure-bred, there is no standard of merit 

 in the mind of the breeder. He is like a ship at sea without 



Figure 11. This chart at the left side shows the influence of the pure-bred sire 

 in improving the blood through five generations, as compared with the 

 grade sire on the right side. Published by United States Dept. of Agri- 

 culture. 



a rudder or an architect without a plan. Herd improve- 

 ment can best be secured through the use of pure-bred sires 

 of merit. ' This necessity has long been understood in Europe, 



