Types and Market Classes of Live Stock 



385 



Kansas, have 65 per cent of the national total; the Southern States, 

 from the Atlantic Ocean to the western line of Texas, have 28 per cent 

 of the total; and the remaining 7 per cent are in the East and in the 

 Far Western States. 



Conditions suitable to pork production. — As stated by Henry and 

 Morrison ^ of the University of Wisconsin, "The horse, ox, and sheep 

 are normally herbivorous, living on the finer and more delicate portions 

 of plants and their seeds, while the omnivorous pig feeds not only on 

 the tender leaves, stems, roots, and seeds, but on animal matter as 

 well. Because of the limited capacity of the stomach and the nature 

 of its digestive apparatus the pig requires food that is more concen- 

 trated and digestible and less woody than that of the other farm 

 animals." 



Fig. 141. — Distribution of hogs in the United States. 



Economical pork production requires the use of a large proportion 

 of grain or other concentrated feeds. Beef and mutton can be pro- 

 duced successfully without grain feeding, but pork production requires 

 grain feeding to a very large degree. Beef cattle and sheep are well 

 adapted to range conditions in the semi-arid regions of the West, but 

 the hog has no place whatever under these conditions. Hogs can 

 profitably utilize very limited amounts of legume hay and they can 

 use certain pastures to advantage as supplements to their grain ration, 

 but weanling pigs kept on the best of pastures without any other feed 

 make very slight gains or do not gain at all. The hog is, then, adapted 



1 Feeds and Feeding, 1915, p. 587. 



