92 



EXPERIMENT STATION. 



[Jan. 



The bran contained 18.87 per cent., the Chicago ghiten 39.75 

 per cent., the old-process linseed meal 41.99 per cent, and the 

 corn meal 11.86 per cent, of protein in dry matter. The 

 silage was a mixture of barnyard milict and soy beans, the 

 latter being quite well podded; it contained about 81 per 

 cent, of water and 12 per cent, of protein in dry matter. Each 

 animal received from 9 to 11 pounds of hay, 20 to 30 pounds 

 of silage, during each half of tli(» ('X])orimont. In the high- 

 protein ration from 2 to 3 pounds of bran were fed, 3 ]iounds 

 of gluten and 1.5 to 2 pounds of linseed meal. In the low- 

 protein ration 1.5 to 2 pounds of bran were given and 5 to 

 pounds of Porn meal. The above tal)le shows the averages. 

 The cows ate their rations clean in evcrv case. 



Arerarje Weiqlii of Animals and Areraqe Dipesliljlc Xiitrients fed daihf 



( PolOlds ) . 



The individual weight of the individual cows varied from 

 7G3 to 1,004 pounds. The cows changed very slightly in 

 weight during each half of the experiment. 



The digestible nutrients were calculated from the analyses 

 of the feed, with the aid of average digestion coefficients. The 

 liigh-protein ration contained substantially twice as much di- 

 gestible protein as the low-protein ration. The fat varied but 

 slightly, and the diiference in the amount of carbohydrate mat- 

 ter depended naturally upon the difl'ei'ont amounts of protein 

 fed. The total nutrients consumed in two rations were the 

 same. 



