30 ELEMENTARY TREATISE ON STOCJK FEEDS AND FEEDING 



Tabi,e Showing the Percent, of Fat in Animai^' 



Animals contain a great deal of fat. Especially is this true 

 of fat animals. As previously stated the carbohydrates of plants 

 are converted into fats in the animal body. 



Suggestion: An exhibit of vegetable and animal fats, fiber, 

 starches, and sugars should prove instructive to the student. 

 Purchase a dilute solution of tincture of iodine from the drug store 

 and put a drop of this on some broken kernels ,of com and 

 sliced potatoes. Note the blue color due to the presence of 

 starch. A dilute solution of iodine is necessary to procure a 

 delicate reaction. 



1 Lawes and Gilbert. 



