CHAPTER V 



CEREALS AND THEIR BY-PRODUCTS USED IN POULTRY 

 FEEDING 



Indian Corn and its By-Products. Corn is the leading 

 cereal produced in this country and is the grain most ex- 

 tensively fed to poultry. According to the Yearbook of 

 the U. S. Department of Agriculture 2,917,450,000 bush- 

 els of com were produced in 1919, valued at $3,934,- 

 234,000 and 2,502,665,000 bushels in 1918 valued at 

 $3,416,240,000. The average yield per acre (in the 

 United States) was 28.6 bushels in 1919 and 24.0 in 1918. 

 This crop equals in acreage and value all the combined 

 principal grains together with several of the minor crops. 

 The bulk of the crop is produced in the Central West 

 where the land is wonderfully fertile and where the nights 

 are warm during the growing season, but corn can be 

 raised in nearly every State in the Union. 



Corn is the great heat and energy producing grain, 

 being composed largely of carbohydrates and oil, but 

 being rather low in crude protein and especially deficient 

 in mineral matter. The crude protein of this grain con- 

 sists largely of a single protein called zein, which is 

 thought to lack some of the amino-acids considered neces- 

 sary for animal growth. This deficiency in mineral mat- 

 ter is made up by feeding the corn with bran, middlings, 



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