COST OF PRODUCING HOGS IN IOWA AND ILLINOIS 23 
100 pounds gain has been presented graphically for each farm in 
Figures 4 and 5. In 1921 the feed cost per 100 pounds of marketable 
Fig. 10.—Fall pigs using rye as early spring pasture. These pigs were turned onto rye March 15 
and held there for 15 days before going onto clover pasture 
pork varied from $2.03 to $6.26 and averaged $3.51. The influence 
of rising grain prices in 1922 increased the average feed cost to $4.72 
and the variations from $3.16 to $6.62 per 100 pounds. 
TABLE 16.—Relation of feed cost to total cost of 100 pounds of pork 
Number of farms 
Percentage feed cost was of 
total cost 
1921 1922 
40 i BOL ed Phy Dre ed > eal S28 SCE aS 
BOWGO GO sad eee re hg 16 4 
BOMOM Ostet He ak tek 21 6 
OOLSOL: at itats 4) Goh B24 5 24 
OLR) Seer aes Ee AS eed NE! 5 
The farm values of feeds were used in thisstudy. The prices were 
determined monthly by deducting from the Chicago price the local 
elevator’s margin and the cost of Rrogiline from the farm to the ship- 
ping ee The cost of shelling and grinding is included in the cost 
of feed. | 
Feeds and grain purchased were charged at the price paid plus the 
cost of hauling to the farm. The cost of husking was deducted if any 
corn was hogged down. The averge prices of the feeds consumed 
in the different periods of the pork production process are given in 
Table 17. The average price of corn rose from 36 cents a bushel in 
1921 to 52 cents in 1922, with other feeds in proportion. In 1922 the 
corn price increased 44 per cent, the feed cost 34 per cent, and the 
total cost of pork 15 per cent over 1921. 
