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PRINCIPLES OF FEEDING FARM ANIMALS 



The protein content and energy values of feedingstuffs as 

 presented by Armsby (Table 31, Appendix) are used in 

 calculating rations according to the Eckles standard. 



Summary of Standards for Dairy Cows. — It is of con- 

 siderable interest to compare the different standards for 

 milk production. For the maintenance of a 1000-pound 

 cow, the different standards are given in Table 21. 



Table 21. — Summary of Standards for Maintenance of 

 Dairy Cows 



For the production of 1 pound of 4 per cent milk, the 

 standards are given in Table 22. 



Table 22. — Summary of Standards for Production of One 

 Pound of 4 Per Cent Milk 



True protein, not crude protein. 



