Equipment 379 



feed to last five months, or 150 days, this would necessi- 

 tate the storage of 1050 pounds of feed for each sow. 

 If pigs are also to be fattened from the same supply, 

 about 700 or 800 pounds should be allowed for each pig. 

 A safe average would be about 124 cubic feet of bin room 

 for each farrowing pen, or if the herd is to be fed from the 

 central house the entire year, double this amount. The 

 mixing floor should be five or six feet each way and should 

 preferably open into the alley so that there will be room 

 for manipulating the shovel handle without needing to 

 leave special space for this. 



If a large quantity of ground grain is mixed and stored 

 for a considerable period of time, there is danger of it 

 spoiling, so that in case a large plant is being installed, 

 it is safer to have the grinder in the same building with 

 the feed, and only grind small portions of feed at a time. 

 In most cases, however, if the feed is stored very dry and 

 the building is watertight, there will be but little difficulty 

 from having grain spoil, and the plant on the average 

 farm will not usually be large enough to justify the in- 

 stallation of a grinder and power plant solely to grind 

 hog-feed. 



The power is the greatest expense and when the farm 

 already has an engine or other power, the grinder will cost 

 very little. A good burr grinder suitable for general farm 

 use will cost from $25.00 to $50.00 and will take five to ten 

 horse power. A roller grinder will cost $100.00 to $150.00, 

 but there are no burrs to wear out so that when any large 

 quantities of grain are to be ground, the final cost of 

 grinding a bushel of grain will be less than with the burr 

 mills. The roller mill, if used, must have corrugated 

 rollers and be equipped with a differential so as to grind 

 as well as roll. Pigs require that the grain be ground 



