THE FEEDING OF DAIRY COWS. 15 



DRIED BREWERS' GRAINS. 



Digestible nutrients. Protein, 21.5 per cent; carbohydrates and fat, 44.2 

 per cent. 



Dried brewers' grains rank with wheat bran as a flaky, bulky feed. 

 The physiological effect is nearly if not quite as good as bran. They 

 differ in that they carry a somewhat larger percentage of protein 

 than bran. Cows sometimes do not eat these grains readily at first, 

 but soon overcome this aversion. 



MALT SPROUTS. 



Digestible nutrients.- Protein, 20.3 per cent; carbohydrates and fat, 50.3 



per cent. 



Malt sprouts are loose and bulky and cows usually do not take 

 them readily at first. The chief place of this feed is with other feeds 

 in a mixture. Both brewers' grains and malt sprouts come from 

 barley and are by-products from the manufacture of beer. 



The proprietary feed companies control at the present time a 

 large percentage of the output of dried grains and malt sprouts from 

 the larger breweries and these excellent feeds do not now appear un- 

 mixed on the market to so great an extent as they did a few years 

 ago. 



HOMINY MEAL, FEED. OR CHOP. 



Digestible nutrients. Protein, 7 per cent ; carbohydrates and tat, 77.6 per cent. 



This by-product of the manufacture of hominy consists of part of 

 the starchy portion of the corn and part of the germ. It is variously 

 known, as the heading suggests, as hominy meal, feed, or chop. In 

 many respects it resembles corn and is a good substitute for it. This 

 feed is used chiefly to furnish the energy or heat-making part of the 

 ration, but because of its low percentage of protein it is not an 

 economical source of the latter. 



DRIED DISTILLERS' GRAINS. 



Digestible nutrients. Corn grains : Protein, 22.4 per cent ; carbohydrates and 

 fat, 66.5 per cent. Rye grains : Protein, 13.6 per cent ; carbohydrates and fat, 

 52.8 per cent. 



These grains are the by-product of the manufacture of alcohol and 

 distilled liquors from corn and rye. Both kinds are rather bulky 

 and usually the corn grains are among the cheapest sources of protein. 

 These grains are not particularly palatable, consequently they should 

 be used with other feeds in the grain ration. 



DRIED BEET PULP. 



Digestible nutrients. Protein, 4.6 per cent ; carbohydrates and fat, 67 per 

 cent. 



Dried beet pulp is a by-product from the manufacture of sugar 

 from the beet. As a source of protein it is not of high value, and the 



