2/4 



r.KCUMlNOS,!! IN TriE FKEniNG OF LIVE STOCK 



represenls about a sixtieili part of the nutritive units of 

 molasses. 



We will therefore take the pea-nut cake (a by-product 

 of the oil industry) and investigate how much the kilo of 

 nitrogenous matter is worth at the present selling price 

 of the cake. 



Exciniplc. — We borrow from iM. Boname's report on the 

 pea-nut the following composition of pea-nut cake : — 



Water 



Ash 



Cellulose 



Nitrogen-free extiact .. 



Fat 



Protein 



750 



817 



21*38 



7-99 



40-31 



I 00 '00 



Commercial value : Ks. 120 per ion, or about Rs. 12 per kilo. 



We shall then have : — 



Dii;e.stil)le cellulose 

 Nitrogen-free extract 

 Digestible fat ... 

 ,, protein 



I -061 

 1 8-04 f ^ 



7-19 

 3659 



Converted into starch we shall find as nutritive units 



Nitrogen-free extract ... 



Fat 



Protein 



Add three quarter.s of the nitrogenous matter 



1795 

 17-32 



3439 

 2579 



•55 45 



Thus, 95'45 nutritive tinits expressed in terms of starch 

 are \\()rth Rs. 12, 100 units will be worth Rs. 12.57, ''i"<^' 

 the unit Rs. 0.1257 : — 



Rs. 



Nitrogen-free extract 



Fat 



Protein ... 



= I7"95 X •1257 = 2. 1778 

 = i7*32 X "1257 = 2.2566 

 = 6o-i8 X '1257 = 7.5649 



17.0903 



As this cake contains 35'59 per cent, of digestible pro- 

 tein, if we divide Rs. 7.565, the cash value of the protein, 

 bv ,^6'5<^}. we shall obtain the value of the kilo of nitrogenous 

 matter in the cake, that is to say, Rs. 0.205. 



