CORN OIC CAKE MEAL FOR PIGS 
137 
With the viewpoint in mind, therefore, of fitting a feed into its 
proper place, we undertook the investigation of the feeding of 
corn oil cake meal. In the first place we wanted to determine 
whether or not corn oil cake meal in itself was a complete ration. 
We found that it was not. 
Pigs that were taken on June 29 at weaning time and fed until 
October 27, 1917 — 120 days — weighed 180 pounds at the close of 
the feeding period where corn, and tankage, and salt were allowed 
“Free-Choice” style on bluegrass pasture. Where corn oil cake 
meal and salt only were fed the final weight was only 96 pounds, 
thus showing that as compared to a good ration, even though the 
pigs .getting the corn oil cake meal ran on bluegrass, corn oil cake 
meal was inefficient. 
We tried adding tankage to the corn oil cake meal, letting the 
pigs have “Free-Choice” of these two feeds, but even at that the 
pigs on this aforementioned date of October 27, after 120 days of 
■feeding, weighedl only 134 pounds. Thus it will be seen that the 
addition of tankage to corn oil cake meal is not nearly so efficient 
as the addition of tankage, for instance to a corn alone ration. 
To drive this home we would simply cite an experiment now in 
progress. Corn alone pigs (salt was allowed) at nine months 
of age weighed approximately fifty pounds. These were fed in 
dry lot. Tankage added to this corn ration has made the same 
kind of pigs weigh better than 250 pounds at the same age. Just 
because tankage, therefore, is a good supplement to corn does 
not mean that it is just as efficient a supplement to corn oil 
cake meal, or to any other feed unless that feed be very, very 
similar to corn such as wheat for instance or barley or rye, yet 
even with each of these specific feeds tankage bears different re- 
lationships. Of course, by tankage I refer to the 60 per cent pro- 
tein product which sometimes goes under the name of meat meal, 
sometimes tankage, again it is called meat meal tankage, or Di- 
gester tankage, but the point is that it is a meat and bone residue 
of a very high protein content, namely 60 per cent. 
How about adding corn oil cake meal to the corn ration fed on 
bluegrass pasture? Instead of the pigs weighing 180 pounds as 
they should on good corn and tankage ration they weighed 114 
pounds. This shows that corn oil cake meal, therefore, is not an 
efficient single supplement to corn when said corn is fed to hogs 
on bluegrass pasture in conjunction with salt at free-will. 
The addition of a little linseed oil meal to the corn and corn oil 
cake meal ration was attended with slightly beneficial results, but 
