Y4 



Bulletin 173. 



During the year 1896-7 the yields are not so uniform, but lot B 

 shows a much smaller decrease than either of the other lots. Taking 

 both experiments into account it would seem that the medium 

 ration had a more favorable influence upon the continued production 

 of milk and total butter-fat than either the wide or narrow rations. 

 Yet, if individual cases are considered, we find Belva 2d, on the 

 narrow ration, holding out in her milk flow during both years as 

 well as, or better than, any of the cows on the medium ration. 



Number of Pounds of Dry Matter Required in Each Ration to 

 Produce 100 Pounds of Milk and one Pound of Fat. 



Weight of Cows. 



Whether or not the different rations had any particular effect 

 upon the live weight of the cows may be studied by recourse to 

 data already given, but an average of the gain of each lot during 

 the twenty-two weeks together with their average age is tabulated 

 here, for more ready reference. During the first year none of the 



cows had reached full age, and during the second year two of lot 

 A and one of lot B were five years old. Since the cows in lot A 

 were older than the others, it might seem that the narrow ration 



