^3 



Conclusions. 



1. Distillers' dried grains containing 32 per cent or more of 

 protein have been found to have a high average digestibility, and may 

 be classed among the most satisfactory and economic protein feeds. 



2. The present experiment has shown it to be fully equal, if not 

 rather superior, to standard gluten feed in its nutritive value, and 

 without objectionable effect on the health of the animal. 



3. Its bulky nature enhances its value as a grain feed for all 

 kinds of stock. 



4. The flavor and keeping quality of the milk appeared in no 

 way to be affected when this food constituted ^4 of the daily grain 

 ration. 



5. From 2 to 4 pounds daily is the usual feed for dairy animals, 

 preferably mixed with other grains. 



B. BREWERS' DRIED GRAINS. 



(a) Character of the Product. 



(b) Composition of the Grains. 



(c) Digestibility of the Grains. 



(d) Feeding Experiment with Cows. 



(e) Effect of Brewers' Grains on Flavor and Keeping Quality of 



the Milk. 



(f) Method of Feeding the Grains. 



(a) Character of the Product. 



Brewers' dried grains are the kiln dried residue from beer manufac- 

 ture, and consists of some of the starch and allied substances, 

 together with the hull, germ and gluten of the barley. Most of the 

 true starch is removed by the action of malt and yeast. Grains that 

 have been dried immediately are of a yellowish-gray color, and have 

 a faint aromatic smell. Dark brown colored grains have been 

 injured before being dried, or have been heated at too high a tem- 

 perature, thus causing decomposition. The dried grains are fed 



