302 PRODUCTIVE FARMING 



The Poland China (Fig. 185) and the Berkshire are both 

 black, with some white markings on the face, legs or other 

 parts. The Chester White and the strain called Ohio Im- 

 proved Chester (O. I. C.) are white in color. The Duroc- 

 Jersey is red or some modification of that color. These are 

 all large in size and the pigs mature early. The Berkshire 

 has erect ears and a dished face; in the others the ears are 

 drooping. The Duroc-Jersey is liked throughout the country 

 because of the large litters of pigs. The Poland China is 

 criticised because of the small number of pigs in a litter. 



FIG. 186. A Tamworth sow, red, representing the bacon type. 



The white swine are not much used in the South and South- 

 west because of the greater danger of skin diseases in hot, 

 sunny climates. 



Breeds of the Bacon Type. The Large Yorkshire (Fig. 

 187), Tamworth (Fig. 186), and Hampshire are the leading 

 breeds of the bacon type of swine. The last mentioned 

 originated in Kentucky and the others in England. The 

 Large Yorkshire is white, the Tamworth red, and the Hamp- 

 shire black with a wide white belt. 



Pig Management. When swine are kept in large numbers 

 they should be provided with an abundance of good pasture. 

 Clovers and other legumes should be grown for this purpose. 



