BATIONS FOR POULTRY IjST THE PACKING HOUSE. 19 



Table 17. — Character of gains made by different classes of birds fed the control ration. 



Class. 



Number. 



Water. 



Protein. 



Lean 



meat 



(water 



and 



protein). 



Fat. 



Ratio of 

 protein 

 to fat. 



Ratio of 

 lean 

 meat 

 to fat. 





114 

 20 

 26 

 80 



Ounces. 

 4.9 

 5.3 

 4.9 

 2.3 



Ounces. 

 1.2 

 1.6 



.7 

 .4 



Ounces. 

 6.1 

 6.9 

 5.6 

 2.7 



Ounces. 

 3.6 

 4.8 

 4.4 

 4.4 



1 : 3.0 

 1: 3.0 

 1: 6.3 



1 : 11.0 



1 : 0.58 





1 : .69 





1 : .79 





1 : 1.63 







The high proportion of fat added by hens explains the feeding 

 results which indicate that protein concentrates are not essential in 

 rations for hens (p. 18). 



Table 18. — Gains made in 4, 8, 11, and 14 days by different classes of birds fed the control 



ration. 





Number. 



Gain in 



4 days. 



Gain in 



8 days. 



Gain in 



11 days. 



Gain in 

 14 days. 



Class. 



Percent- 

 age of 

 initial 



weight. 



Percent- 

 age of 

 total 

 gain. 



Percent- 

 age of 

 initial 



weight. 



Percent- 

 age of 

 total 

 gain. 



Percent- 

 age of 

 initial 

 weight. 



Percent- 

 age of 

 total 

 gain. 



Per cent- 

 age of 

 initial 

 weight. 





612 

 396 

 336 

 456 



12.09 



30.10 



22.91 

 17.28 

 17.29 

 7.75 



57.05 

 59.81 

 77.36 

 65.18 



31.34 

 24.43 

 20.68 

 9.99 



78.04 

 84.56 

 92.53 

 84.02 



40.16 



Springs 



28.88 





11.11 

 4.08 



49.71 

 34.31 



22.35 



Hens 



11.89 







The average daily gains made by broilers in the different periods 

 are 3.02, 2.71, 2.81, and 2.94 per cent, respectively. In other words? 

 these broilers continued to add weight very rapidly throughout the 

 feeding period. In 11 days they had made only 78.04 per cent of 

 their total gain. It thus appears that from the standpoint of the 

 amount of gain made, a 14-day feeding period is not too long. 



Table 19. — Gains made by broilers during different feeding periods. 





Marginal 

 gain. 



Gain in 4 days. 



Gain in 8 days. 



Gain in 11 days. 



Gain in 



14 days. 



Number of birds. 



Percent- 

 age of 

 initial 



weight. 



Percent- 

 age of 

 total 

 gain. 



Percent- 

 age of 

 initial 



weight. 



Percent- 

 age of 

 total 

 gain. 



Percent- 

 age of 

 initial 

 weight. 



Percent- 

 age of 

 total 

 gain. 



Percent- 

 age of 

 initial 



weight. 



96 



Per cent. 

 60 



40 to 50 

 30 to 40 



2<\ to :;'j 



17. ).-. 



13.90 

 9. 98 

 6.95 



31.18 

 31.32 



28.82 

 27.37 



32.95 

 26. 25 

 18.92 

 13.52 



58. hs 

 58.76 

 54.63 

 53.25 



43.81 

 36.47 

 20. 20 

 18.87 



78.29 

 81.64 



76. SI 

 71.32 



55.96 



144 



44. 67 





34. 63 



192.... 



25.39 







612 



\ . ■ r;if<: 



12.09 



30.10 



22.91 



67. 05 



31.34 



78.01 



40.16 







