210 PRINCIPLES OF FEEDING FARM ANIMALS 



COTTONSEED BY-PRODUCTS 



The principal cottonseed by-products are cottonseed cake 

 or meal, cold pressed cottonseed, cottonseed feed, cotton- 

 seed hulls, and cottonseed hull bran. 



Cottonseed Cake, or Meal. — Cottonseed cake is the resi- 

 due remaining after most of the hulls and lint have been 

 removed and the cottonseed have been crushed, heated, and 

 the oil pressed out in a manner similar to the manufacture 

 of old process linseed meal previously described. Cotton- 

 seed meal is the finely ground cake, although it is sometimes 

 sold in the pea or nut size, especially in the West or where it 

 is fed in the open and liable to be blowTi away by the wind. 



Cottonseed meal should be a Ught yellow in color. A 

 dark color indicates the presence of ground hulls which often 

 are used as an adulterant. This adulteration may be 

 detected definitely by putting a small quantity of the meal 

 in a glass tumbler, pouring hot water over it, quickly stirring, 

 allowing it to settle for a few seconds, and then pouring off 

 the unsettled portion. If the residue is darker in color than 

 the untreated meal, ground hulls are present. If successive 

 treatments intensify the dark color, the adulteration is pro- 

 portionate. Wet, musty, or moldy meal should never be 

 used under any conditions. 



The average chemical composition of cottonseed meal is 

 as follows : water, 7.0 per cent ; ash, 6.7 per cent ; crude 

 protein, 44.6 per cent ; crude fiber, 6.5 per cent ; nitrogen- 

 free extract, 25.2 per cent ; and fat, 10.0 per cent. Its net 

 energy value is 84.2 therms per 100 pounds. It is one of 

 the richest feeds in protein and energy. It is also high in 

 fat and ash. Cottonseed meal should be purchased on the 



