30 



HATCH EXPERIMENT STATION. 



[Jan. 



to the other two rations and Herd I. was used as a check for 

 comparison. The several rations were as follows : — 



The average results follow : 



Analyses of Butter Fat. 

 First x>eriocl : both herds sta?idard ration. 



The experiment began December 7 and ended April 15, 

 or 130 days. It is interesting to note the evenness in the 

 composition of the butter fat during this time produced by 

 Herd I. receiving the standard ration. There was a slight 

 decrease in the saponification equivalent and the Reichert- 

 Meissl number, but practically no change in the melting 

 point or iodine number. 



In the first period both herds produced butter fat of sim- 

 ilar composition. In the second period the fat produced by 

 Herd II., receiving the King gluten meal ration, showed no 



