( 4 ) 



the embryo, to all appearances, directly feeds, remains quite constant. 

 The white albumen gradually decreases until entirely softened and 

 used up. 



The presence of color in the albumen leads one to suspect fat, 

 since Sudan III, colors fat only. Analysis does show its presence in 

 large percentage. The incubated eggs were boiled and then separated 

 into the white albumen, the pink albumen, (the albumen portion col- 

 ored by the dye), and the yolk. Analyses of these parts were made. 

 The presence of much fat in the colored albumen is shown by the 

 results of analysis. The protein and fat in the egg before incubation 

 is approximately as follows : 



Per Cent Protein Per Cent Fat in 

 in Dry Matter Dry Matter 



Albumen 85-89 0.50 



Yolk ' 30.00 65.00 



ANALYSIS OF INCUBATED EGGS 



The Yolk 



Laboratory 

 Number of Egg 



67 

 82 

 70 

 73 

 76 

 58 

 61 

 64 

 79 

 55 

 52 



Number of Days 

 Incubated 



3 



5 



6 



6 



6 



7 



7 



7 



8 

 11 

 12 



Per Cent Protein 

 (N. x 6.25) 



31.43 

 30.44 

 31.87 

 33.75 

 31.31 

 30.62 

 31.43 

 30.56 

 30.87 

 30.56 

 29.87 



Per Cent Fat in 

 Dry Matter 



63.82 



65.67 

 63.54 

 61.47 

 60.50 

 58.91 

 65.25 

 61.13 

 61.70 

 64.78 

 65.24 



The White Albumen 



Laboratory 

 Number of Egg 



67 

 82 

 70 

 73 

 76 

 58 

 61 

 64 

 79 

 55 

 52 



Number of Days 

 Incubated 



3 



5 



6 



6 



6 



7 



7 



7 



8 

 11 

 12 



Per Cent Protein in Dry 

 Matter (N. x 6.25) 



85.56 

 86.75 

 86.12 

 87.81 

 86.56 

 87.81 

 86.81 

 87.06 

 87.56 

 88.56 

 89.18 



Per Cent Fat in 

 Dry Matter 



.22 



.25 

 .18 

 .27 

 .34 

 .09 

 .12 

 .25 

 .34 

 .15 

 .17 



