MAINTENANCE THE ENERGY REQUIREMENTS 2 91 



In addition to these respiration experiments, investigations 

 upon the live weight maintenance of cattle made by the writer, 1 

 by Haecker, 2 and by Evvard 3 have been discussed elsewhere 4 

 by the writer. 



TABLE 48. NET ENERGY IN DAILY MAINTENANCE RATIONS OF CATTLE 



For the purpose of computing the approximate net energy 

 values of these rations it seems permissible to assume provi- 

 sionally that the same proportion of their metabolizable energy 



1 Penna. Expt. Sta., Bui. 42 (1898). 2 Minn. Expt. Sta., Bui. 79- 



3 Thesis for degree of M. S., University of Missouri, 1909. 



4 U. S. Dept. Agr., Bur. Anim. Indus., Bui. 143, 44-46. 

 6 Omitting the experiment on alfalfa meal. 



6 Giving each experiment equal weight. 



