56 



MAINE STATE COLLEGE 



Total Contents of Ash in the Milk of Each Cow for One 



Year. 









Jersey. 











Whole milk. 



Skimmed milk. 



Cream. 





Yield 

 milk, 

 lbs. 



Ash. 



°h 



Total 

 Ash. , 

 lbs. 



Yield 

 milk, 

 lbs. 



Ash. 



Total 

 Ash. 

 lbs. 

 41.57 

 25.94 



Ash. 

 lbs. 





6540 

 4381 



.779 

 .749 



50.94 1 

 32.83 1 



4979 

 3373 



.835 

 .769 



9.37 





6 89 















Pounds of Ash Ingredients in Total Yield of Milk. 



Potash 



Soda 



Lime 



Magnesia 



Iron Oxide 



Phosphoric Acid. 

 Sulphuric Acid.. 

 Chlorine 



Oxygen equivalent to 

 Chlorine 



Whole milk. 



Agnes. Ida 



lbs. 

 11.03 



3.97 

 13.03 



1.27 



.23 



16.00 



1.38 



5.20 



52.11 

 1.17 



50.94 



lbs. 



7.S6 



2.94 



7.26 



.85 



.07 



10.82 



.31 



3.51 



33.62 

 .79 



Av'rage. 



lbs. 



9.44 



3.46 



10.15 



1.06 



.15 



13 41 



.84 



4 35 



42.87 



41.89 



Skimmed milk. 



Agnes. 



lbs. 

 8 85 

 3 18 



10.58 



1.11 



.20 



13.20 

 1.00 

 4.45 



42.57 

 1.00 



41.57 



Ida. 



lbs. 



5.94 



2 20 



5.95 



.65 



.05 



8.42 



.50 



2.88 



26.59 

 .65 



25.94 



Av'rage. 



lbs. 



7.39 



2.69 



8.27 



.88 



.12 



10.81 



.75 



3.67 



34 58 



.82 



33.76 



In connection with these results it maybe of interest to con- 

 sider the amount of fertilizing materials contained in the ash of 

 milk. Of these, the only constituents of importance are potash 

 and phosphoric acids. The other ingredients are usually found 

 in sufficient quantities in the soil, or are to be obtained so cheaply 

 that it is not necessary to notice them here. From the preceding 

 tables we find that the average amounts of potash and phosphoric 

 acid contained in the milk of a single cow for one year are as 

 follows : 





Potash. 



Phosphoric Acid. 



Total 





Pounds. 



Value. 



Pounds. 



Value. 



Value. 





11.16 

 9.53 



$ .50 

 .43 



13.42 

 11.50 



$ 1.07 

 .92 



$ 1.57 





1.35 









1.63 





1.92 





$ .22 











These constituents are estimated at their market values, viz. : 

 4 1-2 cents per pound for potash, and 8 cents per pound for 

 phosphoric acid. If the whole milk from one of these cows were 

 sold, it would carry from the farm potash and phosphoric acid 

 valued at $1.57. If only the cream were sold, the skimmed milk 

 being used upon the farm, the loss for one cow would be but 22 

 cents. 



