ANALYSES OF MILK. 



May, 3 7 12 20 23 26 June 10 



Water, 87.16 86.99 86.84 87.33 87.55 87.57 87.10 



Solids, 12.84 13.01 13.16 12.67 12.45 12.43 12.90 



Fat (in solids), 4.08 3.88 3.93 3.60 3.29 3.37 3.61 



Mean of three last stated analyses of Milk. 



Water, 87.41 



Total solids, 12.59 



Fat (in solids), 3.43 



The cows, with the exception of No. 1 , retained their original 

 weight well. 



SUMMARY OF OBSERVATIONS UNDER EXISTING CIRCUMSTANCES. 



1. The cows differed widely in their preference for ensilage. 



2. Reducing the ensilage to the same state pf dryness noticed in 

 the hay, we find that the total quantity of the dry vegetable matter 

 previously consumed, has been considerably reduced, in consequence 

 of the introduction of the ensilage. This is more apparent in Nos. 

 I and II, than in No. III. 



3. The quantit}^ of milk has in every instance increased, in con- 

 sequence of the addition of ensilage to our customary mode of feeding, 

 counting the amount of dry vegetable matter in each case pound for 

 pound with the milk produced. 



4. The increase in quantity of milk, counting on the basis of the 

 total amount of fodder consumed, was most pronounced in case of 

 moderate quantities of ensilage, i. e. from 35 to 40 lbs. per day. 



5. The quality of milk was not perceptibly changed, as far as 

 the density and the amount of fat was concerned. None of the mean 

 results obtained after feeding ensilage has been below the lowest 

 results, before its introduction in the daily diet. 



In stating the composition of the milk only with reference to water, 

 solid matter and fat, it has been by no means assumed, — in following 

 thereby the common usage, — that the information regarding these 

 points suffices under all circumstances to establish the normal char- 

 ter of a sample of milk. The total amount and the relative propor- 

 tions of the various nitrogenous constituents of the milk, — commonly 

 stated by the collective name — Casein, — are known to vary and to 

 affect at times seriously its character. 



Observations in that direction quite naturally suggested themselves 

 in the course of our investigation. The results thus far obtained 



