398 APPENDIX. HORSFALL'S SYSTEM. 



Production of milk by 6 cows, average 14 quarts per 

 day each, for 27J weeks = 16,072 quarts, which at 41 

 oz. per quart = 41,184 Ibs. 



Ibs. 



When dry or free from moisture, 5230 



Butter in 16,072 quarts, at 30 per 1000 = 1235 



Caseinein " " " 48.2 per 1000, =1977 



Sugar of milk, = 1804 



M . , (Phosphate of lime, 99 \ ,. 



9rals 10ther, 115 } ' 



5230 



Gain of weight 500 Ibs., of which I compute 300 Ibs. as fat. 



200 Ibs. as flesh. 



500 



Nitrogen, 316 Ibs. 



Phosphate of lime 99 



Phosphoric acid, = 45.50 



Cost of food per cow per week, . 8*. 6e?. 

 When the yield of milk is less, the cost of food is reduced to 7*. 8rf. 

 per week. 



s. d. 



Gross return in milk, 16 4 



" " " weight, 16 



" " " manure, 28 



20 6 



ANALYSIS OF EXCREMENT BY PROFESSOR WAY. 



Per cent. 



Moisture, 84.85 



Phosphoric acid, .39 



Potash, 58 



Soda, 22 



Other substances, .... 13.96 



100. 



Nitrogen, 41 



Ammonia, 49 



Manure, 88 Ibs. per cow per day. 



For 6 cows per day 528 Ibs. = 3696 Ibs. per week. 

 " " " for 27 weeks 101,028 Ibs., containing of 



Nitrogen, 414 Ibs. 



Phosphoric acid, 393 



Potash, 585 



