LESSONS ON POULTRY FOR RURAL SCHOOLS. 
13 
The material used in the rations was such as might be practical on 
the average Indiana farm. More ideal rations are often too expensive. 
To these rations were added grit, shell, and green food. The chart 
Fig. 7.— Average per cent egg production per month per pullet, with and without animal food. 
Graphic type of chart for results of several factors. (Adapted from investigations of Agricultural 
Experiment Station of Purdue University, Lafayette, Ind., Bui. 182.) 
does not bring out the relative value of meat scrap, fish scrap, and 
skim milk, but shows the necessity for some animal food. Skim milk 
is often cheaper than other forms of animal food. 
