84 MAINE STATE COLLEGE 



The growth obtained from feeding the middlings is clearly much 

 greater than that produced by the bran. The e^fplanation of this 

 fact is not hard to find. From the data previously given, and es- 

 timating the skimmed milk to have ten per cent, of solids, practi- 

 cally all of which are digestible, we find that the animals eating 

 middlings consumed in the 72 days 377 lbs. of digestible mate- 

 rial, while those eating bran received only 317 lbs., the difference 

 being 60 pounds. In other words, the middlings fed hogs ate 19 

 per cent, more digestible matter than the bran fed, though the 

 weight of food was the same in the two cases, which means that 

 the animals eating the middlings had available just so much more 

 of nutrients to be applied to growth. 



The results of this experiment combined with the facts previous- 

 ly brought out, seem to establish the superior feeding value • of 

 wheat middlings as compared with wheat bran. 



Summary of Comparison of Wheat Middlings and 

 Wheat Bran. 



(1.) The middlings and bran sold in Maine do not at present 

 differ greatly in composition, the bran containing somewhat 

 more ash and somewhat less of carbohydrates. 



(2.) In a trial with sheep, the middlings were found to be 

 much more digestible than bran, the ratio of digestibility being 

 as 123 to 100 in the two cases. 



(3.) A feeding trial with swine, where very moderate rations 

 of both middlings and bran were fed in connection with skim- 

 med milk, the growth from the middlings ration was over twice 

 that from the bran ration, or in the ratio of 110 to 53. 



