CONCENTRATED FEEDS 309 



the moisture in big steel drums. This leaves a dry grain, 

 with about 20 per cent digestible protein and 30 per cent car- 

 bohydrates, which makes a valuable feed for horses, cattle, 

 and sheep. It has been used with success as a substitute for 

 oats as a feed for horses, when oats were high in price. 



Rye is quite similar to wheat in composition. It makes a 

 good feed for the same purposes that wheat is used. It has 

 a somewhat stronger flavor than other grains, and when fed 

 to dairy cows, tends to give an objectionable taste to milk. 

 If fed, it should be given right after milking. 



Linseed oil meal is the product of flax seed. This seed 

 contains about 30 per cent oil. The manufacturers of linseed 

 oil grind the seed, and extract the oil by pressure, leaving 

 long, brown, board-like cakes, as a by-product. This is 

 broken up, or ground, and fed as linseed oil cake or linseed 

 oil meal. It contains about 30 per cent digestible protein, 

 and slightly more of carbohydrates. All farm animals are 

 most fond of this product, and it is used to some extent by 

 many feeders. It softens the skin of animals and gives a 

 silky lustre to the hair. It is often used in so-called con- 

 dition powders, to make up much of the bulk of them. It 

 should form from one-tenth to one-fifth of the ration, accord- 

 ing as the need exists for a highly concentrated feed te 

 balance the ration. 



Cotton-seed meal is a by-product of the cotton-seed oil 

 mills. About one-fifth of the seed is oil. The usual custom 

 is to remove the hard covering or hull of the seed, and then 

 press a dark brownish oil from the meats, which, when re- 

 fined, becomes an attractive golden yellow. The by-product 

 remains as long, yellow, board-like cakes, that contain almost 

 40 per cent digestible protein. It is one of the most con- 

 centrated and valuable feeds that we have. Small particles 

 of hulls are to be found in the cake, and the greater the 



