lOO STORRS AGRICULTURAL EXPERIMENT STATION. 



protein mixture in addition to the basal ration, another (C) 

 containing three cows received 2 pounds extra, and another 

 (D) containing five cows received 3 pounds extra. 



It will be noted from the above that the rate at which the 

 protein was increased, for the more productive cows, was re- 

 duced in this from what it was in the last two experiments. 

 The increase in the protein fed, however, was made on the 

 basis of a smaller increase in the yields of butter fat, as shown 

 in the tabulation on page 83. 



Table 54. 

 Summarized results ivith herd V. Tests Nos. 6j a7id 6^. 



[First test Feb. 4-16, 1901. Second test JIar. 4-16, 1901.] 



Group A, 4 cows: 



1st test, - - - 



2d test, 

 Group B, 5 cows: 



1st test, - - - 



2d test. 

 Group C, 3 cows: 



1st test, - - - 



2d test, - - - 

 Group D, 5 cows: 



1st test, - - - 



2d test, 

 Average of herd, 17 cows: 



1st test, - - . 



2d test, . - - 



Digestible Nutrients 

 AND Fuel Value. 



I,bs.|I,bs 



2.19 .62 

 r .99 .60 



2.19 .62 

 2.22 .65 



2.19 

 2.45 



2.19 

 2.6g 



Lbs. 



15.30 

 11.76 



15.30 

 12.20 



15.30 

 12.62 



15.30 

 13.06 



Cal. j i: 



351407.6 

 28100 6.6 



35140J7.6 

 29560 6.2 



3514017.6 

 31020 5.8 



35140 

 32500 



7.6 



5.5 



Av. Daily 

 Yield. 



Lbs. 



II. 5 

 10.7 



16.7 

 16.9 



21.9 

 22.6 



26.9 

 26.0 



2.19 .6215.30 35140 7.619.4 

 2.34.68:12.42 30320 6.0119.1 



Lbs. 



.67 



.65 



.93 

 .96 



1. 16 



1. 41 

 1.42 



32.4 

 17.911.67 27.5 



21.7 

 20.1 



21.7 



21.2 



1.3023.3 

 I. 12 19.8 



■99 19-7 



■89 17.3 



.81 15.4 

 .82 14.9 



1.04 21.71.12 20.9 

 1.0619.61.0318.5 



The results of this experiment are interesting because of the 

 reduction in the cost of the ration, and in the cost of producing 

 milk and butter in the .second test as compared with the first. 

 In every group the cost of producing loo pounds of milk and one 

 pound of butter was less in the .second test. The milk and the 

 butter yields were nearly alike in the two tests, which would 

 tend to show that the saving must have been due to the 

 cheaper ration in the second test. An excessive amount of 



* See foot note p. S4. 



