378 Western Live-stock Management 
Dietrich at the Illinois Experiment Station as described 
in Illinois Bulletin 109. This house has been in operation 
for eleven years and has been found quite satisfactory. 
The vital principle of this house is the location of the 
windows so that the maximum sunlight will reach the 
pens during the time of the vear when the pigs are far- 
rowed, while in midsummer when the sun is high, it is 
shut out by the projection of the roof. The centralized 
house should not be too close to other buildings and it 
should be located on ground that will produce pastures 
suitable for hogs during the greatest part of the year. 
A number of plans for providing a separate pasture for 
each compartment of the centralized house have been 
worked out, but the expense of fencing and the difficulty 
of cultivating small fields usually make them impractical. 
For this reason it is considered better to provide fewer 
but larger pastures and have four or five compartments 
open into each. 
GRANARY 
As a part of the centralized pig house, or in close prox- 
imity to it, should be a granary large enough to contain 
sufficient grain and other feed to last through the feeding 
period. It is especially desirable to have all of the feed 
close enough to the pigs that it reed not be hauled during 
muddy weather. The granary should have a sufficient 
number of compartments to contain as many mixtures 
as are likely to be used at any one time during the year. 
In addition, there should be a mixing floor. Convenient 
to this, but not too close, should be a water supply. 
A sufficient amount of grain room should be allowed 
to each sow, to contain seven pounds of feed for each day 
she is to be fed in the building. If it is desirable to store 
