MILK PRODUCTION 



333 



feeding dairy cows that have been set forth, it is neces- 

 sary first to determine what the standards require. These 

 requirements for a 1,000-pound cow giving thirty pounds 

 of 5 per cent milk would be as follows: 



TABLE LXXI 



In the next table are given the energy equivalents of 

 the nutrients required by the several standards: 



TABLE LXXII 



*Metabolizable. 



f'et energy, 

 rue protein, 

 or 27.5 pounds of milk daily, per cent fat not given. 

 Ider production values used. 



435. Calculation of rations for dairy cows. In order 

 to determine what a ration should be for this particular 

 animal, use is made of the following figures showing the 

 digestible protein and total digestible nutrients in the 

 various feeds entering into the combinations that are 

 suggested : 



