192 PRINCIPLES OF FEEDING FARM ANIMALS 



Its feeding value is low and should not be confused with 

 that of wheat bran. Its principal use in stock feeding is as 

 a dilutent of gluten meal to form gluten feed, and as 

 an adulterant of wheat bran. 



Corn oil meal, or corn germ meal consists of the germ 

 of the corn after the corn oil has been partially extracted. 

 It is quite high in protein, 23 per cent, and in fat, 10 per cent. 

 Although it is a valuable nitrogenous concentrate, there is 

 but httle available on the market. It may be used, especially 

 in the dairy ration, if its cost is not too great. It is lower in 

 feeding value than Unseed or cottonseed meal. 



Distillers' Slops and Dried Grains. — In the manufacture 

 of whisky and grain alcohol, the rye or corn, as the case 

 may be, is ground and heated ^\ith steam in large steel drums 

 in order to thoroughly cook the starch grains. It is then cooled 

 and treated \\Ath. malt which contains an enzyme which changes 

 part of the starch to maltose or malt sugar. The sugar is 

 then converted to alcohol by the action of yeast, and the 

 alcohol is distilled off, lea\dng behind a watery residue know^n 

 as distillers' slops. These slops may be fed to fattening 

 steers at or near the distillery. Such cattle are sold on the 

 market as " distillers." Distillers' slops are also fed to 

 hogs. 



In the large distilleries, however, the thicker slops are 

 dried and put on the market as distillers' dried grains. They 

 contain 30.9 per cent crude protein, 10.7 per cent crude fiber, 

 39.2 per cent nitrogen-free extract, 10.6 per cent fat, and 

 2.8 per cent mineral matter. Corn makes the best, and rye 

 the poorest, distillers' grains. They are valuable especially 

 as a feed for dairy cows, being superior to gluten feed. As a 

 feed for horses, some authorities reckon them as equivalent 



