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 detennine 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 



