8 
Bulletin 57. 
put into the stack 82.3 pounds were taken out and for 
every hundred pounds of feeding value in the hay as put 
in the stack 12.4 pounds were lost and 87.6 pounds were 
saved. The loss is one-eighth; that is, for every eight 
tons of feeding value in the original hay, seven tons are 
saved and one lost. 
Chemical analyses were made of the hay as put into the 
middle layers of the stack and as taken out. A comparison 
of the two analyses shows what changes took place in the 
hay during process of curing in the stack. 
COMPOSITION OF THE STACKED HAY. 
As put in 
June 15. 
Water. 16.6 
Dry Matter. 83.4 
Analysis of Dry Matter- 
Ash . 9.91 
Ether Extract. 1.25 
Crude Protein. 15.07 
Crude Fiber. 36.97 
Nitrogen-free Extract. 36.79 
As taken out 
February 12. 
10.0 
90.0 
11.84 
1.34 
14.74 
38.62 
33 46 
The analysis taken in connection with the weights shows 
that the following losses of food ingredients took place in 
these middle layers of the stack. 
LOSS OF FOOD INGREDIENTS IN THE STACK. 
As put in 
As taken out 
Per cent 
June 15. 
February 12. 
of loss. 
Ether Extract. 
. 101 
99 
2.0 
Crude Protein. 
. 1214 
1086 
10.5 
Crude Fiber. 
......... 2978 
2845 
44 
Nitrogen-free Extract. 
. 2964 
2465 
16.8 
Total. 
. 7257 
6495 
10.5 
Samples were also taken and analyzed of the load from 
the top of the stack and from the bottom. The analyses are 
given below in comparison with the composition of the 
alfalfa when put in the stack. 
Original. Top of stack. Bottom of stack 
Ash. 9.91 11.64 12.18 
Ether Extract. 125 1.47 1.77 
Crude Protein. 15.07 15.94 17.04 
Crude Fiber. 36.97 38.82 36.84 
Nitrogen-free Extract. 36.79 32.13 32.75 
In the top of the stack the loss falls on both the protein 
and the extract matter, while at the bottom the loss is 
almost confined to the extract matter and crude fiber. In 
both cases the loss of carbohydrates is greater than in the 
middle layers. 
The losses on the hay that was put in the barn show 
quite a different result: 
