CONCENTRATED FEEDS. 35 



Starch while at one end of the seed is the germ. In the manu- 

 facture of starch from corn, the bran or hull is first removed 

 by mechanical means; the germ is then separated from the 

 remainder of the seed. The remaining part is then crushed 

 and placed in water. The starch being light, stays suspended 

 in the water and is floated off, while the heavier portion sinks 

 to the bottom. This heavier portion when recovered and dried, 

 forms what is known as gluten meal and contains 35 to 40 per 

 cent protein. 



The germ is steam heated and pressed to extract the oil. The 

 residue is ground and put upon the market as germ oil meal. 

 We have then from the manufacture of starch and glucose: 

 fCorn bran, containing 10-12 per cent protein. 



Germ oil meal, containing 25-30 per cent protein. 



Gluten, containing 35-40 per cent protein. 



The feed stuff known as gluten feed consists of gluten meal, 

 hulls, and broken germs. (Larger part of germs go as corn 

 oil cake or germ meal.) 



Most of the starch and glucose by-products are sold in New 

 England as gluten feed. 



DISTIEEERY AND BREWERY BY-PRODUCTS. 



Distillery and brewery by-products include malt sprouts, 

 brewers' grains and distillers' grains. In the process of making 

 malt from barley, the grain is sprouted by keeping in a warm 

 moist room for several days. When the malt is dried, the 

 sprouts are removed by machinery and put on the market as 

 cattle feed. They have not met with general favor because they 

 are not usually relished by dairy animals on account of a slightly 

 bitter taste. Many feeders prefer to feed them moist, especially 

 if over 2 pounds are fed daily. They absorb a great deal of 

 water and increase in bulk by wetting. Brezvers' grains consist 

 of the residue from the manufacture of beer. Very few of the 

 dried grains are sold in Massachusetts, most of them being used 

 moist by the farmers in the immediate vicinity of the brewery. 

 The dried grains are somewhat superior to wheat bran in feed- 

 ing value. Brewers' grains have been found to be an excellent 

 partial substitute for oats as a horse feed. 



