STATE AGRICULTURAL S0CIET5f. 721 



The analyses of the chief ingredients of my own produce, or 



• 



such extra materials as I usually purchase, have been made by 

 Professor Way; for other materials I have had recoiu'se to a very 

 useful compilation by Mr. Hemming (vol. xiii., p. 449, of the So- 

 ciety's Journal), and to Morton's ' Cyclopaedia of Agriculture.' 

 The analysis of straw is that of oat-straw; that of green food is 

 derived from the analysis of rape-plant, cabbages, and kohl rabi. 

 During February and March I have been using wheat and barley- 

 straw with mangel, and as these materials contain less oil, I give 

 in the steamed food three ounces of linseed oil per day to each 

 animal. For the composition of milk I adopt that by Haidlen, 

 whose method of analysis is reputed to be the most accurate, the 

 proportion of butter in my milk being this season very similar to 

 that given by him. 



It will be observed that this is the gross return for 27 J weeks 

 from the time of calving, from which will have to be deducted 

 expense of attendance, &c. 



£i, s. d. 

 The materials used as food are found to have cost, 70 9 



The value of these materials as manure consists of 888 



lbs. nitrogen = 1061 lbs. ammonia at 6c?., 26 10 6 



Phosj>horic acid and })otash, _ 9 15 4 



Value of food if employed as manure, X36 5 10 



The 16,072 quarts of milk, at 2d. per quart for new 

 milk, at which price it enters largely into consump- 

 tion as food for man, amount to _ XI 33 18 8 



X. s. d. 

 The nitrogen in the milk 316 lbs. = ammonia 



378 lbs., at 6rf. per lb., 9 9 



Pliosphoric acid in ditto 453, lbs. at 1 },d. per lb. 5 8 



X9 14 8 



From these statements it will be seen that materials used as 

 food for cattle represent double the value they would do if used 

 J'«>r manure, whilst that i>()rtion converted into food fitted for the 

 use of man represents a value thirteen to fourteen times greater 

 than it would as manure. 



[Ag. Trans. J T T 



