INSPECTION OF COMMERCIAL FEEDSTUFFS 



55 



Oats — Test Weight per Bushel versus Chemical Composition.! 



To supply authentic information to those interested in the purchase of feed 

 for a group of state institutions, an attempt was made during the summer of 

 1936 to determine the correlation between test weight per bushel and chemical 

 analysis of whole oats. Fifty-five samples were collected from feed stores, state 

 institutions, and grain elevators, of which thirty-three were used for purposes 

 of comparison. The remaining twenty-two samples were discarded because 

 they were less than 95 per cent pure and it was thought that oats containing a 

 liberal percentage of barley, and other cereals would be so affected both as to 

 test weight and chemical composition as to be worthless for the purpose. The 

 results for this group are presented in a separate table. 



The following summary shows the average chemical analysis of the samples 

 grouped according to weight. The most marked differences were in the fat 

 and fiber content. No consistent difference was found in the protein, nitrogen 

 free extract, and fat. 



The oats tested were from the 1935 crop. New oats would probably show a 

 somewhat higher water content, which to an unascertained extent might in- 

 fluence their test weight. 



Average Composition of Oats of Different Weights per Bushel. 

 95% Purity or Better. 



'Physical analyses of samples were 

 State Seed Testing Laboratory. 



lade by F. A. McLaughlin and Olive M. Hoefle of the 



