1913.1 



PUBLIC DOCUMENT — No. 31. 



143 



meal, wo have the following amounts of digestible matter in 100 

 pounds : — 



American 

 Oats. 



Foreign 

 Oats. 



American 

 Corn Meal. 



Protein, 

 Fiber, 

 Fat, . 



Extract matter, 

 Total, . 



8.78 



3,. 35 



4.27 



45.74 



62.14 



7.83 



2.68 



3.84 



44.23 



58.58 



6.57 



3.51 

 66.24 



76.32 



One hundred pounds of corn contains, therefore, some 16 

 pounds, or 27 per cent., more digestible material than a like 

 amount of oats. 



Kellner placed the net energy value of corn at 81.5, and of 

 oats at 59.7, or as 100 is to 73.2 (starch equivalents). One 

 would, therefore, assume that for the ordinary purposes of nu- 

 trition oats were substantially one-fourth less valuable than corn. 

 This docs not take into account the favorable mechanical or 

 special energy eifects of oats. The nutritive inferiority of oats 

 is due to the large percentage of indigestible hull. The oat 

 kernel free from hull is easily and highly digestible. 



Feeding Experiments with OxVts for Milk Production. 

 Tlie object of the experiments was to compare a definite 

 amount of oats with a like amount of corn meal (a) upon the 

 general condition and weight of each animal and (t)) upon the 

 yield of milk, milk solids and fat. 



The plan of the experiments consisted in taking four cows, 

 all of which were fresh in late summer, and dividing them into 

 two groups of two each. In the first half of the trial two of the 

 cows received the so-called oat ration at the same time the other 

 two cows were receiving the corn meal ration. In the second 

 half of the trial the rations were reversed. The experiment was 

 carried out three times. 



