23 



Of the 84 brands collected, one-third contained one or more low grade ingredients. 

 The low grade products found were as follows. 



Oat Feed. — On account of its high fiber content (25-30 per cent) and its conse- 

 quent low digestion coefficient without compensating advantages, it is not believed 

 that this product can be classed otherwise when used as a component of a concentrated 

 feed. 



Clipped Oat By-Product is similar in composition to oat feed, and is included in 

 the group with oat feed for the same reasons. 



Grain Screenings. — This is an indefinite term. Screenings may have con- 

 siderable food value but on account of the weed seeds they contain may prove un- 

 palatable and are best consumed with the molasses with which they are usually 

 mixed. 



Flax Plant By-Product, found in only one instance, is not as valuable as any of 

 the foregoing from a food standpoint. 



It is believed that the above-mentioned products add nothing of any particular 

 value and may even detract from the other feeds with which they are mixed. 



Deficiency Statistics of Calf Meals. 



Number, of Samples showing a Shortage of More than One Per Cent Protein or Fat, 

 or an Excess of One Per Cent Fiber. 



Deficiency Statistics of Stock and Horse Feeds. 



Number of Samples showing a Shortage of More than One Per Cent Protein or Fat, 

 or an Excess of One Per Cent Fiber. 



1 Average protein content of all samples collected equaled that .stated in guarantee. 



One hundred and seven samples of stock feeds, representing 53 brands, were col- 

 lected. Of these 7 per cent were deficient in protein, 5 per cent deficient in fat, and 

 21 per cent high in fiber. 



The classification of stock feeds which follows indicates the amount of oat hulls 

 or other material high in fiber content which has been added. Those containing the 

 least fiber are to be preferred. 



