Dairy Management. 157 



and its Composition in proximate Elements and Minerals. 



Aiudysis of Excrement hij 

 Professor Way. 



Percent. 



Moisture 



Phosphoric acid 



Potash . . 



Soda 



Other substances 



84-85 

 •39 

 •58 

 •22 



13-96 



100^ 



Nitrogen -41 = 

 Ammonia '49 



Manure 88 lbs. per cow per day. 



For 6 cows per day 528 lbs. = 3G96 lbs. per week 

 , , for 27^ weeks 101,028 lbs., containing 



of Nitrogen 414 lbs. 



Phosphoric acid . . . . 393 

 Potash 585 



Nitrogen incorporated in food .. ., 888 lbs. 



Casein 316* 



Fibrin .. .. 7-35 



Manure .. .. 414* 



Balance consumed in perspiration 150 • 65 



888-00 lbs. 



The materials of food are shown to have cost 



£70. Os. 9^. 



£. s. d. 



Gross value 16,072 quarts of milk, at 2 J. per quart 133 18 8 



Gain of weight 500 lbs., at 6<:?. per lb 12 10 



Nitrogen in manure 414 lbs. = Ammonia 494 lbs. at 6cf. 



Phosphoric acid .. 393 lbs. at \ld. per lb 



Potash 585 „ at 3c7. „ 



£. s. d. 



12 7 



2 9 1 



7 6 3 



22 2 4 



£ 168 11 



Manure per cow per day 38 lbs., per week 616 lbs. s. d. 



Containing ammonia 3 lbs I 6 



Phosphoric acid 2-40 lbs 3^ 



Potash 3-57 lbs 10^ 



Value of a cow's excrement, per week 2 



