20 



carbohydrates of higher quality than are furnished by many of these feed 

 substitutes are often wasted on the farm. There is a class of feeders, 

 however, to whom feeding-stuffs low in protein and which contain i^e- 

 latively large amounts of carbohydrates are valuable, namely, those who 

 raise nothing themselves — city feeders of horses and stall-fed cattle. To 

 these feeders, therefore, the quality of the carbohydrates is of greater 

 importance. In the case of the horse, the animal is not provided with 

 the extensive digestive apparatus of the cow. Nevertheless, he requires 

 bulky material in connection with his grain, and he also requires that 

 this bulky material be of good quality. 



Referring to the table of composition we notice that the amount of 

 total carbohydrates in oat dust is high, amounting to 69.40 per cent. 

 Of this 12.82 per cent, appears in the form of crude fibre, the remaining 

 58.58 per cent, being soluble carbohydrates (starch, sugar, gums, etc.). 

 If, therefore, the procuring of carbohydates were the object of the pur- 

 chase, oat dust should command a high price, inasmuch as this food con- 

 tains only a moderate amount of these in the form of crude fibre. 



Oat SiftiN'GS. 



Five samples of oat sif tings indicate an average of 14.33 P^^ cent, 

 of protein. The fat content is also well in advance of many of the by- 

 products on our markets. The percentage of crude fibre is rather 

 higher than we would have expected in such a food. The microscopic 

 examination, however, revealed the presence of only particles of finely 

 divided oat hulls which could hardly be considered as an adulterant. 



Oat Feed and Oatmeal. 



Sample No. i of this table must be considered a low grade food since 

 it contains less than 1 1 per cent, of protein and less than two per cent, of 

 fat. 



Samples Nos. 2 and 7 of this table contain sufficient quantities of 

 protein and fat to warrant us in classifying them as high grade foods. 

 Such a food as No. 7 when mixed with milk or swill would make an ex- 

 cellent food for young pigs. 



Two samples of oatmeal were analysed. As this food is not used to 

 any extent as a cattle food, it is quite unnecessary to discuss the varia- 

 tion in composition. 



Two samples of oats were analysed. In discussing tne composi- 

 tion of oat dust, we observed that horses were usually fed on a ration con- 

 sisting of bulky food and grain. In most cases the grain ration is made 

 up largely of oats. It is interesting, therefore, to note that the amount 

 of protein in the oat grains is low as compared with some of our con- 

 centrated by-products, and yet we seldom hear of oats being replaced in 

 a ration for working horses by any of the highly nitrogenous materials 



