m 
IOWA ACADEMY OF SCIENCE Voi,. XXVIII, 1921 
SOME DONT’S ARE IN ORDER 
Don’t try to feed Corn Oil Cake Meal as the lone feed. Tankage 
alone is bad, so is corn alone for young stock. 
Don’t use Corn Oil Cake Meal as the lone supplement to corn 
in dry lot. Mix it with tankage, or fish meal, or milk, skimmed or 
buttermilk. 
Don’t attempt to make Corn Oil Cake Meal take the place of 
corn or other basal grains as a full substitute because it is primar- 
ily a supplemental not a basal feed. It won’t give good results 
alone, even though fed with tankage — allowing no other feed or 
feeds. If it is fed with tankage alongside corn or barley or other 
good basal feed, the results are pleasing because the gains and 
feed. requirements are satisfactory. 
Don’t think that just because Corn Oil Cake Meal makes a nice 
creamy textured, bulky slop of good appearance the mere slopping 
(mixing with water) will take the place of good supplemental feed 
boxes. It won’t. Use it with tankage or meat meal, or fish meal, 
or the milks when it is supplementing the ordinary feeds of the 
farm. Or else feed on good clover or alfalfa pastures in summer 
season. 
Don’t forget that Corn Oil Cake Meal mixed with skim or but- 
termilk is a splendid combination for balancing the farm grains — 
in the absense of milk, use tankage or fish meal product. Corn 
Oil Cake Meal makes the limited milk on the average farms go 
much further and that efficiently. 
Don’t fail to bear in mind that the average of three Iowa Sta- 
tion experiments showed that it took 90 per cent as much protein 
for 100 pounds gain where Corn Oil Cake Meal was mixed with 
tankage and fed with corn as where the tankage was fed straight 
with corn. This indicates that 100 pounds of corn — Corn Oil Cake 
Meal — and tankage mixed proteins are practically equal to 111 
pounds of mixed corn and tankage proteins or the addition of Corn 
Oil Cake Meal makes all the proteins fed about 10 per cent more 
efficient. In case of brood sows alfalfa mixed with Corn Oil Cake 
Meal helps it out a great deal in its grain supplementing virtues. 
Don’t confuse Corn Oil Cake Meal with Corn Hominy Feed. 
They are very different. A good hominy feed is a splendid corn 
substitute — our tests showing it to equal in feeding value per 100 
pounds about 80 to 100 pounds of good dry whole corn grain. 
Hominy Feed contains Corn Bran, Corn Starch and Corn Germs. 
Quite often the oil is extracted from the germs. It is the by-pro- 
duct of table corn meal or hominy grit manufacture. It carries 
