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COMPOSITION OF THE ANIMAL BODY 



Soy beans are high in protein. 



Proteins form the most important part of feeding stuffs. 

 As a rule the highest priced feeds are the richest in protein. 



Protein substances are found near the growing tips of 

 plants and usually constitute a higher percentage of young 

 than of old plants. They are also found stored in seeds 

 around the embryo. In animals, they are even more 

 abundant than in plants, forming the cell walls, lean-meat 

 tissues, brain and nerve cells, hair, hoof, horn, nails, and 

 structural material for all the working organs of the body. 



Protein materials usually contain i6 per cent nitrogen. 

 In analyzing feeding stuffs for protein content, therefore, the 

 chemist determines the percentage of nitrogen and multi- 



