8 FORAGE CEOPS IX DENMARK 



the other feeding-stuffs. The average increases per pig in 

 10 days were : 



Ibs.Ibs.nw. 



For ti groope A E 



, B D F 7-6 8-4 



Average . . . 7-6 S3 8-6 



In other words, the groups of pigs which had mingels, namely, 

 C, D, E, and F. increased at a greater rate than the groups 

 which had none (A and B). 



The experiment was. therefore, repeated with other groups 

 of pigs on the same and some other farms, but giving only 

 8 Ibs. of mangels in place of 1 Ib. of corn, or 6 Ibs. of milk, or 

 12 Ibs. of whey. It will be enough to give the aversge results 

 for the six groups in these series, showing the average increase 

 in weight for one pig in 10 days, which were : 



Average ... j 8-5 8-6 8-9 



* 



The final result of these series of feeding experiments was 

 then, that, as food for pigs, 8 Ibs. of mangels were fully 

 equivalent to 1 Ib. of corn, or 6 Ibs. of skim-milk, or 12 Ibs. 

 of whey. 



These feeding experiments were followed with the keenest 

 interest by leading members of the " Society for Improving 

 Cultivated Plants." As a result of several years' comparative 

 trials they had found that there was a considerable difference 

 in the contents of dry matter or total solids in roots of different 

 varieties or even of different strains within the same variety. 

 They were, therefore, anxious to have different kinds of roots 

 tested in Fjord's feeding experiments, in order to see whether 

 the feeding value of different kinds of roots stood in any relation 

 to their contents. In December, 1888, the Society approached 

 Fjord, suggested that two different kinds of roots Eckendorf, 

 a German variety, and Elvetham, an English varietv containing 



