Selecting Feeding Stuffs 277 



Pounds 



Per cent of Pounds dry digestible 



digestibility matter in dry matter 



of dry 100 of the in 100 of 



matter feeding stuff feeding stuff 

 Class IV— Nitrogenous feeds 

 16-30 per cent protein 



Brewer's grains 62 92 57 



Gluten feed 86 92 79. 1 



Malt sprouts 67 90 60.3 



Wheat bran 62 88 54.5 



Wheat middlings 75 88 66 



Pea meal 87 90 78.3 



Class V— Nitrogenous feeds 

 30-45 per cent protein 



Gluten meal 90 92 82.8 



Linseed meal, O. P 79 91 71.9 



Linseed meal, N. P 80 90 72 



Cottonseed meal 74 92 68 



It is full}' recognized that these figures cannot be 

 taken as absolute relative values. Feeding stuffs bear- 

 ing the same name are not alwaj's exactl}' similar in 

 composition or in equally good condition. Variations 

 in the moisture content occur, especiallj- with the coarse 

 fodders. Even after allowing for all these factors, 

 results will not follow exactly the quantities of diges- 

 tible matter supplied, because there seems to be a 

 greater adaptability of some feeds to the needs of a 

 particular species. Nevertheless we are forced to con- 

 clude that food materials of the same class must fur- 

 nish energy and building material in proportion to 

 what is digested from them. 



OTHER STANDARDS OF VALUATION 



Certain writers and speakers base the value of ni- 

 trogenous feeding stuffs, from bran up, entirely on the 



