Acknowledgements 



The author wishes to acknowledge the valuable assistance of the 

 following men, former Graduate Research Assistants in the De- 

 partment of Poultry Science, in planning and conducting the re- 

 search reported in this bulletin: Lawrence M. Potter. Richard M. 

 Hatch. William R. Sansalone. Richard M. Vondell. and Willis 

 S. Reed. 



Cover 



New Hampshire pullets reared in confinement at twenty weeks 

 of age: left, full fed pullets: right, restricted fed pullets. 



