614 



NUTRITION OF FARM ANIMALS 



TABLE 174. EFFECT OF AMOUNT OF MIXED RATION CONSUMED ON 

 DIGESTIBILITY 



Eckles 1 determined the digestibility of mixed rations sufficient 

 for maximum milk production, and thirteen months later, when the 

 cows were dry, that of a maintenance ration of the same mixture of 

 feeding stuffs. About thirty per cent of the dry matter of the ration 

 was derived from hay, thirty-six per cent from silage and thirty-four 

 per cent from grain. 



TABLE 175. DIGESTIBILITY OF MIXED RATIONS BY Cows 



Mumford, Grindley, Hall and Emmett 3 determined the digestibil- 

 ity of four different mixed rations of hay and grain by four pairs of 

 cattle receiving respectively slightly more than a maintenance ration, 

 one-third feed, two- thirds feed and full feed. One animal of the full- 

 fed pair showed a distinctly lower digestive power than the other in 

 all the periods and the same was true of one animal receiving the 

 two-thirds feed in the last two periods. The results upon the other 

 animal in this case are shown in the table in parenthesis : 



Mo. Expt. Sta., Research Bui. 4. 



2 Approximate. 



3 Ills. Expt. Sta., Bui. 172 (1914). 



