20 



FORAGE CROPS IN DENMARK 



of the experiment. The average increases for the three farms 

 together are also given, and the differences between the increase 

 of the cows which had roots (M and T) and those which had 

 none (C). 



AVERAGE WEIGHT AND INCREASE PER Cow. 



The addition of roots to the food has, therefore, resulted in 

 a larger increase in the weight of the cows. Like the increase 

 in the yield of milk, which was about double as large for group 

 M as for group T, so also is the increase of the cows caused by 

 the roots nearly double as large for group M as for group T. 

 This result, that 36 Ibs. of mangels had a greater effect than 

 36 Ibs. of turnips, is in full agreement with the analyses of the 

 two kinds of roots, which showed that on an average the mangels 

 contained 8'00 per cent, of sugar and the turnips only 3-37 per 

 cent. ; the mangels had 13-62 per cent, of total solids, the 

 turnips only 7 -96 per cent. 



The result of giving an addition of 86 Ibs. of roots per day 

 to the food of milch cows may, therefore, be summarised as 

 follows : 



No difference whatever in the composition or richness of 

 the milk. 



A larger yield of milk, and larger for mangels than for 

 turnips. 



1 Danish pounds, being 10 per cent, larger than English Ibs. 



