Relative Food Cost of Animal Products 405 



the ration is calculated from the average coefficients 

 of digestibility. 



The facts brought out by this study of the relation 

 of food to product are emphatic and suggestive. In 

 order to display them as clearly as possible there are 

 shown in the next table the quantities of the various 

 commercial animal products, and of human food in 

 animal forms, which can be produced by the use of a 

 quantity of cattle food containing 100 Ibs. of digesti- 

 ble organic matter: 



Relation of food to product 



Produced by 100 Ibs. digestible or- 



ganic matter in ration. 

 Marketable Edible 



product solids 



Ibs. Ibs. 



Milk, general average 139. 18. 



Milk, New York experiments 158.7 20.6 



Cheese, green 14.8 9.4 



Butter 6.4 5.44 



Steers, general average, live weight. . . 13.5 



Steers, Iowa, live weight 16.8 



Steers, Kansas, live weight 12.4 



Steers, Maine, live weight 15. 



Steers, general average, carcass 8.3 2.75 



Steers, Iowa, carcass 10.7 3.56 



Steers, Kansas, carcass 7.6 2.52 



Steers, Maine, carcass 8.7 2.84 



Sheep and lambs, general average, 



live weight 13.9 



Lambs, Iowa, live weight 17.8 



Sheep and lambs, general average, 



carcass 7. 2.60 



Lambs, Iowa, carcass 9.6 3.23 



Swine, general average, live weight. . . 30.4 

 Swine, Iowa, live weight 33. 



