116 



THE SCIENTIFIC FEEDING OF ANIMALS 



cent, is highly digestible. The digestible albumen content is 13 per cent, 

 starch value of the cake 70 per cent, and of the extract by-product 66 

 per cent. These by-products are wholesome, but animals must become 

 accustomed to them before eating them readily. They are fed chiefly 

 to milk cows, 4 pounds daily per head. They increase the fat content 

 of milk and give a firm consistency, a pleasing yellowish-white color and 

 an agreeable taste to the butter. On account of their high price they are 

 usually not fed to fattening cattle. 



Fig. 50. Peanut. A, fruit, developed under ground. (Taubert.) 



Peanut hy-products. — Origin : Peanut, Arachis hypogcea, an annual, 

 tropical, herbaceous Papilionacese. Peanuts (1.5 to 3.5 by 1 to 1.5 cm.) 

 have a brownish white coriaceous, veined, almost indigestible, hull and 

 two seed kernels about the size of a hazlenut and inclosed in a brownish 

 red, brittle seed coat. The latter is frequently removed and ground 

 and in this form is known in commerce as bran. It contains over 40 

 per cent of crude fiber and is therefore a feeding stuff of very doubtful 

 value. 



Shelled peanuts spoil readily, especially during ocean transportation. 

 The peanut by-products made in Europe are therefore more valuable than 

 those that have been transported over long sea routes and have become 

 rancid or moldy en route. 



