Grade 

 Date. 



EXERCISE 13 

 DETERMINATION OF QUALITY IN READY-MIXED RATIONS 



Object. To be able to determine the ingredients in ready-mixed ra- 

 tions, both as to quality and quantity, and to determine the general efficiency 

 of such mixtures. 



Equipment. Pound samples of a number of grain rations, paper pie 

 plates, torsion balance weighing in grams, pen knife. 



Procedure. Study each ration separately in the following manner: 



Step 1. Weigh out a 25 gram sample of each ration as it is needed for 

 study. At other times keep sample in a dry, air tight container. 



Step 2. Spread sample out on white paper and by use of pen knife 

 separate the sample into its component parts, such as wheat, oats, barley, etc. 



Step 3. Weigh each ingredient separately and reduce the amount of 

 each to percentage of the whole by multiplying its weight by 4. 



Step 4. Study the quality of each ingredient and record any poor 

 quality feed or adulterations. 



Form for Studying Rations 

 Name of ration . . 



49 



