CONCENTRATED FEED-STUFFS. 



A. "What concentrated feeds are, and why used. 



B. Classification. 



C. Preparation. 



D. Inspection law. 



E. Results of inspection. 



F. Comparative commercial values. 



G. Mixtures of concentrated feeds for dairy cows. 



A. The term "concentrated feed," taken in its broadest sense, is 

 meant to include the grains and other seeds of agricultural plants, 

 as well as their manifold by-products left behind in the process of 

 oil extraction and in the preparation of human foods. 



All cattle feeds, either concentrated or coarse, are made up of six 

 groups of substances : Water, ash, cellulose or fiber, fat, protein 

 and non-nitrogenous extract matter. 



Water. — The several grains and by-products contain when placed 

 upon the market from 8 to 15 per cent of water. 



Crude Ash represents the mineral ingredients of the seed. It 

 will remain behind as ashes should the seed be burned. These ashes 

 consist of lime, potash, soda, magnesia, iron, phosphoric acid and 

 sulfuric acid. 



Crude Cellulose or Fiber is the coarse or woody part of the plant. 

 It may be called the plant's framework. It is present as a rule only 

 to a limited extent in the grains and by-products. 



Crude Fat includes not only the various fats and oils found in 

 different feed stufFs, but also waxes, resins and coloring matters. It 

 is sometimes termed ether-extract, because it represents that portion 

 of the plant soluble in ether. Fat found in grains and seeds is com- 

 paratively free from foreign substances (waxes, resins, etc.). 



