AGRICULTURAL EXPERIMENT STATION. 



35 



TABLE XXIII. 



TOTAL AND DIGESTIBLE NUTRIENTS EATEN FOR EVERT POUND OF MILK, SOLIDS, 

 AND FAT PRODUCED. 



■g,a 



0£i 



12 





32 



(Total Nutrients.) 



Milk 



Solids 



Fat 



(Digestible Nutrients.) 



Milk 



Solids 



Fat 



1.15 



1.31 



1.22 



8.53 



9.87 



9.05 



25.5 



29.8 



27.98 



.82 



.90 



.86 



6.04 



6.77 



6.37 



18.10 



20.50 



19.70 



1.13 



9.7S 

 30.04 



.93 



6.83 



21.02 



1.21 

 9.44 

 28.6 



.84- 

 6.07 

 18.40 



From the data presented in the preceding tables we are warranted 

 in making the following summary. 



1st. That the materials composing the silage used can be per- 

 fectly preserved and successfully kept in the silo as late as June 

 of the following year. 



2nd. That the pea, sunflower and corn mixture produces a silage 

 somewhat richer in protein than corn alone and is very greedily eaten 

 by stock. 



3rd. That to attempt to substitute this mixture entirely for the 

 grain ration was not a success as shown by Table XXII, the cows 

 shrinkng quite materially in their flow of milk without an increase 

 in its richness. The shrinkage was undoubtedly due to a lack of 

 digestible protein as will be seen by consulting Table XVIII; the 

 total and digestible organic matter consumed was practically the 

 same but the protein was considerably less than in Period I. On re- 

 turning to the grain and silage ration in Period III the flow of milk 

 was increased to nearly the original yield. 



4th. In Period IV silage was substituted for one-half the grain 

 ration, twenty pounds silage for three pounds grain, with good re- 

 sults. All the cows increased in weight and shrank no more in 

 milk than would be expected from the advance in time of lactation, 

 the solids and fat increasing slightly. 



