126 PROGRESSIVE POULTRY CULTURE 



in flocks and it is therefore desirable that the birds of 

 each group should be of one breed or variety, of ap- 

 proximately the same age and alike in body condition. 

 The ration is then figured to fit the average of the 

 flock. 



W H I T K W V A N 1 >OTTE 



Courtesy Chas. V. Keeler 



The idea is to supply a scientific foundation for 

 starting in feeding and avoid the necessity of working 

 out the problem through costly experience. 



Having reckoned a triad ration according to a 

 standard, the ration) is tested in practice. The fowls 

 show the effects of the feeding and the feeder interprets 



