Dairy Management. 



1G5 



Nitrogen in Rape cake 59-04 



,, Beans 16*75 



,, Shells of oats 8- 



,, Turnips 28- 



Hay .. .. 12- 



123-79 



lbs. 



In 9600 lbs. excrement Nitrogen 75-84 



In 169 lbs. flesh dry fibrine, 38-87 = Nitrogen 6.24 



82- 8 

 Nitrogen spent in perspiration .. 41-71 



123-79 



The gain in weight during these 21 days was 338 lbs., or 14 lbs. 

 each per week. The proportion of flesh is assumed to be 169 

 lbs., or one-half the gain of weight, and seems ample, though 

 the cattle were still growing. 



The analysis of the excrement by Professor Way gives, of 



Moisture 84-92 



Organic matter, with salts of ammonia .. 12-12 



Sand -93 



Phosphate of lime "72 



Alkalies, sulphates, &c 1'31 



100-00 

 Nitrogen "79 = ammonia -96. 



Barral states the proportion of the nitrogen which escapes by 

 perspiration as one-third or one-fourth of that in the food. Bous- 

 singault found that in a cow giving milk there was an escape of 

 13*50 per cent, of the nitrogen, whilst a turtle dove parts with 35 "04 



* Chiefly consumed in respiration and perspiration, the remainder being con- 

 verted into flesh, fat, &c. 



