Division of Foods and Feeding. 



CONCENTRATED FEEDS. 



JOSEPH B. LINDSEY.* 



TABLE OF CONTENTS. 



A. Definition of Terms. 



B. Classification of Concentrated Feeds. 



C. Feed Standards. 



D. Results of the Inspection. 



E. Discussion of the Results. 



F. New Feeds. 



G. Why Concentrates are Fed. 

 H. Suggestions to Feeders. 



I. Condimental Stock and Poultry Foods. 



A. DEFINITION OF TERMS. 



The term concentrated feed, or concentrate, taken in its broadest 

 sense, is intended to include the grains and the seeds of other agri- 

 cultural 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, whether concentrated or coarse, are composed of 

 the following six groups of substances : 



Water. — The several grains and by-products on the market con- 

 tain from 6 to 12 per cent of water. 



Ash represents the mineral ingredients which constitute the ashes 

 after a feed is burned. These ashes consist of lime, potash, soda, 

 magnesia, iron, phosphoric acid and sulfuric acid. 



Protein is a collective name for all the nitrogenous matter. If 

 corresponds to the lean meat in the animal, and' may be termed 



*With the cooperation of E. B. Holland, P. H. Smith, and J. E. Halligan. 



