SOILING EXPERIMENTS. 89 
that the oat fodder was much poorer in protein than the oats 
and peas. Cows 1, 2 and 3, which were continued on the oats 
and pea fodder, fell off but little in milk flow and amount of fat. 
Cows 5, 6 and 7 just about held their own during the Hunga- 
rian tests, but on the sweet-corn fodder rapidly fell off in 
amounts of milk and of fat. This was especially true in the 
first test with sweet corn. This lot of fodder was thickly 
planted, had a rather small proportion of ears, and in the di- 
gestion tests* was much less digestible than some of the later- 
fed lots. The increase in milk and fat made by these cows 
during the last corn fodder test, points out the higher value 
of the thinly sown, more mature corn fodder, as compared 
with immature or thickly sown fodder. 
The results.are summarized in tables 19 and 20, on page go. 
The size of the rations fed is indicated by the total protein 
and fuel value. In all cases except one (period 5), the rations 
made up mainly of leguminous fodders contained larger 
quantities of digestible protein than our suggested standard 
(1.87 pounds for cows of 750 pounds live weight), while the 
rations made up of cereal fodders contained much less protein 
than the suggested standard. The milk flow seemed to be 
regulated largely by the amount of protein fed. In all cases, 
except the last corn fodder test, the cows fell off in milk flow 
whenever there was a considerable reduction in the quantity 
of protein fed—notice periods 1 and 2 and 4, 5 and 6, table 
19,—and increased in milk flow whenever there was a consider- 
able increase in the amount of protein—notice periods 6, 7 and 
8, table 20. ‘This tends to confirm the judgment expressed in 
connection with our winter feeding work,f that rations con- 
taining relatively more protein than that called for by the 
commonly accepted standards are to be preferred to those 
containing less protein. 
It will be noticed that down to the end of the sixth test, 
cows 1, 2 and 3 fell off in milk flow and total fat gradually 
but less rapidly than cows 5, 6 and 7; and that in all 
cases except period 3, gave a larger amount of product than 
did cows 5, 6 and 7 in the corresponding periods. In the 
seventh feeding period, when rowen grass was fed, cows 1, 2 and 
3 increased rapidly in the amount of milk and the quantity of 

* With sheep described later in this Report. + Page 75 of this report. 
