118 MASS. EXPERIMENT STATION BULLETIN 186. 



Table XII. — Total Milk and Milk Ingredients produced. 

 Experiment I. 



Experiment III. 



Totals. 



Alfalfa, 

 Hay. 



15,866 

 15,733 



13.34 

 13.62 



2.125.2 

 2,149.3 



4.60 

 4.79 



734.9 

 757.2 



87.25 ■ 

 88.45 



Table XII shows that in Experiment I the milk yield favored the al- 

 falfa ration by about 1 per cent., while in the second experiment the dif- 

 ference was about 2 per cent. In the third experiment the difference was 

 very slight, — only 7 pounds. The total of the three experiments gives a 

 yield of 15,866 pounds for the alfalfa ration, and 15,733 pounds for the 

 hay ration, a difference of about nine-tenths of 1 per cent, in favor of 

 the alfalfa. 



In Experiment I, for some reason, the yields of total solids and total 

 fat were noticeably greater (4.4 and 11.1 per cent.) on the hay ration. 

 These results, however, were not made emphatic by the two other experi- 

 ments; hence one is in no way justified in assuming that the alfalfa in- 

 fluenced the milk composition. A definite amount of dry matter, there- 

 fore, in each of the rations produced substantially the same results in the 

 yield of milk and milk ingredients. One sees that the alfalfa stimulated 

 slightly the yield of milk without correspondingly increasing the solids. 



