INCREASE OF FLESH ON YOUNG CHICKENS. 



3 



of distillers' grains used during the fleshing experiments. The but- 

 termilk was examined daily for acid and total solids. 



Table 1. — Chemical composition of the feedstuff's and the rations used in the poultry 



fleshing experiments. 



Moisture (per cent) 



Total solids (per cent) 



Fat (per cent) 



Total nitrogen (per cent) 



Protein (per cent) 



Ash (per cent) 



Crude fiber (per cent) 



Lactose and lactic acid (per cent). 

 Nitrogen-free extract (per cent) . . 



Corn 

 meal. 



12.22 

 87.78 

 3.85 

 1.40 

 8.75 

 1.38 

 2.16 



Butter- 

 milk. 



91.77 



8.23 



.52 



.43 



2.06 



Distil- 

 lers' 

 grains. 1 



7.98 

 92.02 

 12.30 



4.24 

 26. 50 



4.57 



8.14 



Rations. 



60.94 

 39.06 

 1.71 

 .62 

 3.88 

 .60 

 .96 



31.91 



59. 95 



40. 05 



1.85 



.84 



5.28 



1.07 



.86 



2.33 



28. 66 



59. 53 

 40.47 

 2.70 

 1.22 

 7. 05 

 1.39 

 1.46 

 2. 33 

 25.54 



1 Average composition of lots 2 and 3. 



2 Average composition of ration prepared with lots 2 and 3 of distillers' grains. 



It will be observed that the total solids in the three rations are 

 approximately the same, the maximum variation being 1.41 per cent. 

 There is 2.70 per cent of fat in Ration C, and the ash and protein 

 contents are also distinctly higher. The amount of protein is espe- 

 cially noteworthy because it is the aim in this work to produce a 

 flesh of desirable food composition, which implies a "fleshing" 

 rather than a "fattening" and a deposition of fat in the edible por- 

 tions of the bird rather than around the viscera. The higher con- 

 tent of mineral ash is in accord with the results obtained in recent 

 nutrition investigations. Attention should be called to the fact 

 that part of the protein in the distillers' grains is in the yeast cells 

 which remain after the alcohol is removed by distillation. Dur- 

 ing the course of this work it has also been found that the distillers' 

 grains on the market vary widely in composition, as may be seen 

 from Table 2 which gives the analyses of four lots purchased at 

 different times from the same firm. 



Table 2. — Chemical composition of distillers' grains. 



Lot 1. 



Lot 2. 



Lot 3. 



Lot 4. 



6.51 



4.98 



10.97 



8.65 



93.49 



95.02 



89.03 



91.35 



10.47 



15.97 



8.62 



8.82 



5.31 



4.40 



4.07 



4.08 



33.18 



27.50 



25.44 



25.50 



3.42 



4.45 



4.68 



4.12 



10.71 



8.14 



S. 14 



8.35 



Average. 



Moisture (per cent) 



Total solids (per cent) . . . 



Fat (per cent) 



Total nitrogen (percent) 



Protein (per cent) 



Ash (per cent) 



Crude fiber (per cent) . . . 



92.22 

 10.97 

 4.47 

 27.94 

 4.17 

 S.S4 



CHARACTER OF BIRDS FED. 



The observations reported were made on young chickens of the 

 class commonly known as "broilers." When received from the 

 farm the weights varied from f pound to 2 J pounds, with an average 



