1900.] PUBLIC DOCUMENT — No. 33. 107 



Following this, a long series of feeding experiments was 

 begun, the object being to demonstrate, if possible, the effect 

 of each of the food components, protein, fat and carbohy- 

 drates, as found in different feed stuffs, — linseed meal, glu- 

 ten meal, cotton seed meal, etc., — upon the composition 

 and physical characteristics of the resulting butter fat. In 

 each case the experiment was compared with a standard ration 

 supposed to be without special effect on the butter fat. It 

 is evident that such a task involves a large amount of care- 

 ful and long-continued work, but as soon as positive results 

 are obtained they will be published. 



Digestion Experiments. 



Digestion experiments were conducted last winter and 

 spring in the same careful manner as in previous years, using 

 two or three sheep in each trial. The grains fed were oat 

 feed. Parson's $6 feed, four lots of "Bourbon" distillers' 

 grains (brands X., XX., XXX. and XXXX.), rye dis- 

 tillers' grains, Cleveland flax meal and Chicago gluten meal. 



The digestion coefficients, together with complete data, 

 will be reported at a later date. 



