1911.1 



PUBLIC DOCUMENT — No. 31. 



89 



Average ]Veiy]it of Animals and Average Digestible Nutrients in Daily 

 Rations {Pounds). 



Three of the cows varied in weight from 800 to 900 ]>oiiii»ls, 

 and three others from 1,000 to 1,0C0 pounds. During the high- 

 protein period the cows gained in total 101 pound.s, and during 

 the low-])rotein period there was a total lo.ss of 0-1 pounds. The 

 average weight of the herd during each of the two halves of the 

 experiment was substantiallv the same. 



The figures for digestible nutrients were secured from actual 

 analvsis of the feedstuffs used, together with average diges- 

 tion coefficients, actual digestion tests not being made. The 

 total digestible nutrients consumed was the same in case of 

 each of the halves of the experiment, the difference being in 

 the excess of digestilJe protein and the corresponding deficit 

 of carbohydrates. The high-protein ration had evidently too 

 narrow a ratio, and the low-protein ration too wide a ratio for 

 the best results. 



Vrotein Balance (Pounds). 



' Calculated by allowing .7 of a pound digestible crude protein per day per 1,000 pounds live 

 weight. 



