358 



ELEMENTS OF AGRICULTURE 



or other coarse forage is fed, the difference in the cost of 

 shipment of the feed and of the animal is still greater. 

 The same principle applies in the production of beef, but 

 does not apply to milk, because the latter product is 

 perishable. The farther corn has to be shipped, the more 

 important this matter becomes. We expect to see a city's 

 milk-supply produced near the city, but expect to see the 

 meat-supply produced where feed is cheapest. The follow- 

 ing table shows that this is what occurs: 



Nebraska produces about two-thirds as much corn as 

 Illinois, but produces nearly as many hogs and a half 

 more beef cattle. Iowa has less corn than Illinois, but 

 has about twice as many hogs and beef cattle. This shows 

 that meat-production is most important where corn is 

 cheapest. 



309. Breeds of Hogs. The most important breeds in 

 the United States are Poland-China, Berkshire, Duroc- 

 Jersey and Chester- White. Breeds of less importance 

 are the Cheshire, Large Yorkshire, Tamworth, Victoria, 

 Small Yorkshire, Hampshire, Essex and Suffolk. 



Nearly all of our important breeds of cattle and horses 

 come from Europe, but all of the more important breeds 

 of swine, except Berkshire, .originated in this country. 

 The Poland-China were developed in Ohio; Duroc- Jersey 

 in New York and New Jersey; Chester- White in Pennsyl- 



