TiiE Bulletin. 15 



jxirlioii which is assimilated. The residue, or undigested portion, 

 forms the solid excrement of the animal. The dii>(;stibility of most of 

 oiii- coiiinion feeds has been determined by actual feeding trials as 

 indicated above, and may be found in the Bulletins issued by the 

 Dej)arlinent and the Experiment Station. It is not necessary to 

 repeat them here. 



The Uses of a Chemical and Microscopical Examination of 



Feeding- Stuffs. 



A chemical examination shows: 



First. The percentage of protein, fat, crude fiber, ash, moisture, 

 etc., contained in the feed. 



Second. Whether or not the feed is up to guarantee claimed for it. 



Third. Indicates whether or not the feed is adulterated. 



Fourth. Furnishes data for dairymen and stockmen to calculate 

 and compound rations. 



A microscopical examination shows whether or not the feed con- 

 tains any adulterants and what the adulterants are. 



Analyses of Samples of Concentrated Feeding Stuffs— Season 1906. 



On the follow^ing pages will be found the results of the chemical 

 and microscopic examinations of the samples of concentrated stock 

 feeds collected by the inspectors of the Department, and those sent 

 in by farmers, dealers and manufacturers. These analyses, with the 

 discussion of the results which follow them, are deserving of careful 

 consideration on the part of all local dealers and also feeders. 



