94 ELBMENTARY TREATISE ON STOCK FEEDS AND FEEDING 



There are some feeds sold that have the following approxi- 

 mate composition. 



Protein 

 Per cent. 



Fat 



(ether 



extract) 



Per cent. 



Nitrogen 

 free ex- 

 tract 

 Per cent. 



Fiber 

 Per cent. 



Water 

 Per cent. 



Ash 

 Pet cent, 



Cotton-seed feed 



36 



24 



Rice Bran, — Sometimes rice hulls are introduced into this feed 

 and the resulting product is sold as rice bran. The presence of 

 rice hulls, when unground, is easy to detect with the naked eye, 

 and when the per cent, of hulls is high, the feed should not be 

 used, as the rice hulls may be injurious to the digestive organs 

 of the animal to which the mixture is fed. A rice bran should 

 smell sweet and one that has a rancid odor should be avoided. 

 A high fat content, which is usually the cause of rancidity, is 

 thought to retard digestion. Good rice bran should contain 

 12.50 per cent, protein and not over 10 per cent, fiber or ash. 

 Composition of Rice Bran and Hulls 



Rice Polish. — The best rice polish is a pure white powdery 

 substance free from grits and rice hulls. The rice hulls are 

 easily detected, and the grits when present may be found by 

 rubbing a small portion between the fingers. The grits are not 

 very objectionable as they are never present in great amounts, 

 as a higher price is obtained for grits from the brewers. The 

 only objection to grits is that they are small and hard and are 

 apt to escape mastication and digestion. Rice hulls are only 

 occasionally present in polish and then only in small amounts. 

 Sometimes rice polish has a red cast due to the presence of 



