310 MASS. EXPERIMENT STATION BULLETIN 181. 



The gluten feed represented in these trials comprised three different 

 lots of the same general type of chemical composition. It contained 

 approximately 9 per cent, of water; and in dry matter the ash varied from 

 .95 to 3.49 per cent., the protein from 25.47 to 28.29 per cent., the fiber 

 from 7.30 to 8.70 per cent., the extract matter from 56.86 to 59.70 per 

 cent., and the fat from 1.56 to 4.94 per cent. In general appearance the 

 three samples resembled each other closely. The variations in percentage 

 of ash and fat indicated some little difference in the manufacturing process, 

 but not sufficient to warrant any noticeable variations in the digestibility 

 of the several lots. In fact, the gluten feed used in Series XIX., Periods 

 2 and 14, and the same series, Period 15, were two different lots, and yet 

 they resemble each other closely in digestibility. 



Here follow the results of a number of early experiments. The process 

 of manufacture was somewhat different, more of the germ being retained 

 resulting in a higher fat percentage. The ash also was not much over 

 1 per cent, because the evaporated steep water was not added. Rather 

 wide variations are noted as in the later experiments. 



