150 



PRINCIPLES OF FEEDING FARM ANIMALS 



a pound of mixed grain like corn, wheat, or barley as the 

 standard by which all other feeds are compared. Thus 

 corn, wheat, and barley were all given a value of '' 1 unit " 

 per pound after it was found that equal amounts of these 

 feeds could be substituted for each other in the ration with- 

 out materially affecting the amount of production by the 

 animal. It was found that one pound of corn could be re- 

 placed by 0.8 pound of cottonseed meal without decreasing 

 or increasing the production. Consequently, it takes only 

 0.8 pound of cottonseed meal to equal one unit. The 

 amounts of other feeds required to equal one unit were deter- 

 mined in the same way. 



The amounts of different feeds required to equal one feed 

 unit are given in Table 23, in so far as they have been deter- 

 mined. 



Table 23. — Amounts of Different Feeds Equivalent to 

 One Feed Unit 



Feedingstuff 



Corn, wheat, rye, barley, hominy feed, dried 

 brewers' grains, wheat middlings, peas, 

 dried beet pulp, dry matter in roots . . 



Cottonseed meal, peanut meal 



Linseed meal, dried distillers' grains, gluten 

 feed, soy beans 



Wheat bran, oats, malt sprouts, molasses 

 grains 



Alfalfa meal, alfalfa-molasses feed .... 



Alfalfa hay, elover hay 



Mixed hay, oat hay, oat and pea hay, })arley 

 and pea hay, red top hay 



Timothy hay, prairie hay, sorghum hay . . 



