22 



FOEAGE CEOPS IN DENMAEK 



this group had the same amount of concentrates as group C, 

 and besides this each cow had an addition of 40 Ibs. of mangels 

 or 48 Ibs. of turnips. These groups, called C + R ( con - 

 centrates + roots), were consequently fed more liberally than 

 the other groups. Groups C and C-j-E stand in the same 

 relation to one another as the groups C and M (or T) in the 

 previous year, but they had a larger amount of food than the 

 groups in 1888. The duration of the feeding experiment 

 proper, divided as usual into periods of 10 days, was in 1889 

 60 or 70 days. As in previous feeding trials, it was decided 

 by drawing lots which food was to be given to each of the 

 groups formed during the period of preparation. A table of 

 the mixed fodder given daily per cow on two of the farms is 

 given here as an illustration : 



On the second farm the 2 (or 4) Ibs. of concentrates replaced 

 by roots were taken in equal proportion from corn and oil 

 cakes. The food given to groups C 2 and C 4 represents the 

 general feeding on the farms, so long as the farmers had roots 

 enough. 



The scheme in 1889 also differed from that of 1888 in this 

 respect, that while in 1888 the observations ceased with the end 

 of the period of experiment proper, when the cows were fed 

 differently, in 1889 the observations were continued for some 



