14 UNIVERSITY OF NEW HAMPSHIRE [Bulletin 335 



SUMMARY AND CONCLUSIONS 



1. Evidence is presented herein to substantiate many major con- 

 clusions drawn in Station Bulletin 312. The fact is demonstrated, 

 however, that the protein requirements of cage managed birds 

 as reported in this bulletin are somewhat different than for floor 

 managed birds, especially in the use of dried skimmilk. This 

 concentrate gave better results when fed to floor managed birds 

 than when fed to cage managed birds. 



2. Protein levels of approximately 19 per cent produced the great- 

 est gains in w^eight during the initial twelve week brooding pe- 

 riod of this experimental study. 



3. The results reported appear to justify the conclusions that for 

 floor managed birds a mixture of the three animal protein sources 

 in the ration is more desirable from the standpoint of growth, 

 efficiency of feed utilization, production and hatchability of eggs 

 than is the use of but one animal protein concentrate. 



4. The per cent of or type of animal protein concentrate fed has but 

 little influence on the date of sexual maturity or on egg size. 



5. Evidence is presented to indicate that the type and amount of 

 animal protein concentrate fed to breeding birds has an influ- 

 ence in the control of gizzard lesions in their resulting progeny. 



