KEPORT OF THE DEPARTMENT OF ANIMAL 
HUSBANDRY. 
I. THE ECONOMY OF USING ANIMAL FOOD 
lNoeesenia kN vores DDN Gee 
W. P. WHEELER. 
SUMMARY. 
A ration in which about two-fifths of the protein was supplied 
by animal food was much more profitably fed to chicks than an- 
other ration supplying an equal amount of protein mostly from - 
vegetable sources but supplemented by skim-milk curd. 
When the two rations were fed to cockerels also, the results 
were favorable to the animal food, but the difference was not so 
pronounced as with tlie chicks. 
Pullets fed the ration containing the large proportion of animal 
food attained ultimately somewhat the larger average size, but 
the chief advantage over those fed the vegetable ration was in the 
more rapid growth and earlier maturity. | 
With ducklings much the better results accompanied the Foor: 
ing of a ration in which about half the protein was supplied by 
animal food. The growth was over three times as rapid as under 
another ration in which most. of the protein was of vegetable 
origin with enough of skim-milk curd added to supply about one- 
fourth of the total protein. 
In the general vigor and health of the birds there was some dif- 
ference in favor of the animal food ration. This difference was 
very pronounced with the ducklings. 

* Reprintjof Bulletin No. 149, 
