CHAPTER XV. 



Feeding By-Products 



Besides the milling products, already discussed, there 

 are other commercial by-products of more or less im- 

 portance and value. As most of these are concentrates, 

 tiiey are used as suj^plements to the main feeds, partic- 

 ularly corn, and in recent years several such have fully 

 demonstrated that they are of worth, although formerly 

 their constituents were not regarded as feeding material 

 or practically of much value. The mills and packing 

 houses have recognized in the hog's ability to make pork 

 from waste and offal an opportunity to turn into money 

 much that might otherwise be of little worth. 



The main by-products from grains liave been treated 

 in Chapter XIV, and those coming from the dairy are 

 discussed in Chapter XVII, so that, with a few excep- 

 tions, this chapter is given over to those from the oil 

 mills, packing houses, sugar factories and breweries. 

 Alost of these have not had as long trials as tlic products 

 of the flouring mills, but the volume of tlie latter pre- 

 viously available for swine has been lessened \)y the in- 

 genuity displayed in the manufacture of foods and ma- 

 terials for consumption through other channels 



GLUTEN FEED 



Gluten meal and gluten feed are accredited as in- 

 ferior to corn meal, using skim milk as a feeding base, 



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