ENERGY VALUES FOR COMPUTING RATIONS IO3 



Here we find the protein is under, and the energy 

 value slightly over, the daily requirements. The 

 ration is, therefore, not quite satisfactory. To im- 

 prove it we will reduce the corn and cob meal by 

 three pounds and add two pounds of cottonseed 

 meal. The ration will then be as follows : 



By substituting two pounds of cottonseed meal for 

 three pounds of corn and cob meal the ration has 

 been greatly improved, since the deficiency of pro- 

 tein has been brought up to, and even beyond, the 

 standard. The revised ration almost exactly approx- 

 imates the standard in energy value, and, also, the 

 quantity of dry matter is easily handled by a steer 

 of this age and weight. 



Computing a Ration for Dairy Cows. If a ration 

 is to be computed for dairy cows the first step will 

 be to determine the food requirements. If it is as- 

 sumed that the cows weigh 1,000 pounds and yield 

 daily 25 pounds of milk, there will be needed 0.5 

 of a pound of digestible protein and 6.00 therms of 

 energy for maintenance. For the production of 25 



