Feeding and Care of Pigs 141 



legs and sound pasterns and feet requires, therefore, not 

 only care in the selection of the breeding stock, but also 

 the feeding of rations during the growing period which 

 promote instead of prevent the development of strong 

 bone. 



Although wheat, rye, barley, kaffir, and milo contain 

 somewhat more protein and ash than does corn, they 

 are very similar in their general feeding qualities. Like 

 corn, they have an excess of those constituents (carbo- 

 hydrates) which promote fat-production and retard 

 growth, and a deficiency of those materials (protein and 

 ash) which stimulate muscle and bone development. 

 The above experimental results from the feeding of corn 

 alone may, therefore, be taken as a fairly reliable in- 

 dication of the results to be obtained with any of these 

 grains when fed singly and alone. 



Realizing the necessity of feeding with corn or other 

 home-grown grain feeds which tend to balance it by 

 furnishing protein and mineral matter, the hog-man is 

 confronted with the question of the most economical 

 method of supplying these necessary materials. There 

 are two available sources of feeds of this nature : forage 

 crops which may be grown on the farm, and so-called 

 nitrogenous or protein supplements which may be pur- 

 chased on the market. The use of one or both of these 

 classes of feeds in conjunction with the home-grown 

 grain is necessary for the most rapid or the most econom- 

 ical growth of the pig crop. 



THE ADVANTAGES OF FORAGE CROPS 



The attention which has been directed in recent years 

 by the experiment stations, extension lecturers, and the 



