394 



Journal of Agricultural Research voi. xvm, no. 7 



Table I. — Ration supplied to growing chicks during 26 weeks of experiment 

 [Expressed in parts by weightj 



« The ash mixture used in the above rations was composed of the following ingredients, expressed in 

 parts: 



! ash 



Bonei 



so 



Calcium carbonate 14 



Sodium chlorid 15 



Dipotassium phosphate 10 



Calcium lactate S 



Magnesitmi sulphate 3 



Sulphur a 



Iron sulphate i 



Table II shows the average total amount of feed and its protein content 

 which was consumed in 13 periods of 14 days each and the ratio of the 

 protein fed to the gain. 



Table II. — Ratio between average feed consumed and average gain in weight in ij periods 



of 14 days each 



basal ration plus meat scraps 



