19 . 



The brewers' grain ration contained about lo per cent more 

 nitrogen and a little less potash and phosphoric acid than the bran 

 ration, and this would hold true in the manure produced by the two 

 rations. The total fertilizer ingredients in the former ration have a 

 5 per cent greater money value than in the latter. 



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

 Quality of the Milk. 



The milk from each of the cows was tested a number of times by 

 the same methods as described under distillers' grains (page lo). It 

 was not possible to detect any objectionable flavor due to the use of 

 the dried grains, neither did the milk from the brewers' dried grains 

 ration sour any quicker than that from the wheat bran ration. It is 

 believed that fresh brewers' grains that have been dried immediately 

 by modern methods, when fed in moderate quantities, have no bad 

 effect on the character of the milk product.* 



(f) Method of Feeding the Grains. 



Brewers' dried grains are used largely as a feed for milch cows, 

 and may be fed in quantities varying from 2 to 5 pounds daily, 

 preferably mixed with other grains. They are comparatively bulky 

 and will serve as a distributer for the heavier concentrates. A few 

 desirable mixtures are given below : 



I. 2. 



100 lbs. brewers' grains. 250 lbs. brewers' grains. 



75 " gluten feed. 125 " corn meal. 



Mix and feed (7 lbs.) 9 qts. daily. Mix and feed (yh lbs.) 10 qts. daily, 



3- 4- 



200 lbs. brewers' grains. 200 lbs. brewers' grains. 



100 " flour middlings. 100 " corn meal. 



50 " cottonseed meal. 50 •' cottonseed meal. 



Mix and feed (7 lbs.) 9 qts. daily. Mix and feed (7 lbs.) 9 qts. daily. 



The mixtures are intended for cows weighing about 1000 pounds 

 and producing 10-12 quarts of milk daily. The quantity may be 

 increased or diminished, depending upon the size of the animal, 

 together with the daily yield and richness of the milk. The roughage 

 should be the same as described under distillers' grains (page 12). 



*See possible exception to the use of all fermented by-products on page n. 



