Octis, I92I Nutrient Requirements of Growing Chicks 149 



tribution; third, an increased food consumption, due to a stimulatory 

 effect on the appetite. A series of experiments to shed further hght 

 on the specific contributions which green feeds make to the ration is in 

 progress at this time. 



(7) It is possible to raise to normal maturity chicks confined to a small 

 pen. Drummond ^ reports great difficulty in rearing chicks in confine- 

 ment, and other investigators have noted some of the problems, especially 

 leg weakness.' Our lot 205 grew to normal maturity, some of the pullets 

 producing eggs when about 200 days old, though never having more 

 range than was provided in a yard 4 by 8 feet in size. Ration 205, though 

 not synthetic, is of interest because of its comparative simplicity. 



1 Drummond, Jack Cecil, observations upon the growth of young chickens under laboratory 

 CONDITIONS. In Biochem. Jour., v. lo, no. i, p. 77-88, i pi. 1916. 



2 Hart, E- B., Hai,pin, J. G., and Steenbock, H. op. ai. 



