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PRINCIPLES OF FEEDING FARM ANIMALS 



second step, we will assume a trial ration consisting of 10 

 pounds of corn and 8 pounds of clover hay. Referring to 

 Table 31 of the Appendix, it is found that the digestible 

 protein and net energy in this ration are as follows : 



Comparing the trial ration with the standard, we find that 

 it is low in both protein and energy. As the third step, we 

 will add 2 pounds of cottonseed meal, as it is high in both 

 protein and energy. The ration then contains the following 

 nutrients : 



This ration, although a trifle low in dry substance, ful- 

 fills the requirements of the Armsby standard. 



In calculating a ration for a dairy cow according to the 



