68 



ARACHIS HYPOG^A (peA-NUT) 



The residue of the third expression forms the oil cake, 

 which thus varies in composition according to whether the 

 nuts were decorticated or not when pressed. The former 

 are called in trade pea-nut cakes, and the latter coarse or 

 strawy cakes. 



If the pressure is carried out without the application of 

 heat the oil content is higher, and the manufacturer suffers 

 a loss. 



Water 



Ash... 



Cellulose 



Fat ... 



Non-nitrogenous matter 



Nitrogenous matter 



According to M. Grandeau, the composition of cake 

 made from decorticated pea-nuts, compared with linseed 

 and rape cakes, frequently used as fodder, is as follows : — 



Decorticated Undecorticated 



Pea-nut cakes, whether prepared by the hot or by the 

 cold method, and whether from decorticated or undecorti- 

 cated seeds, have an important nutritive value for dairy 

 cattle. 



The nitrogen content is 6 to 7 per cent, and their com- 

 mercial value either as animal fodder or as manure reduces 

 the cost price of the oil and renders the cultivation of the 

 pea-nut more remunerative. 



The best plan is to use them as cattle fodder, particularly 

 for milch-cows, as the fertilizing elements are then pre- 

 served in the farmyard manure. 



Their mineral composition is as follows : — 



