Dec, 1908.] KEEDINC STl'FES .\ND FERTILIZERS. 



233 



COTTONSEED MEAL. 



LINSEED MEAL. 



The fi-i-oup of by-products which comprises ghiten feeds, dis- 

 tiliei's' tjrains. Itrewers' grains and hominy feeds were not very 

 satisfactory in their agreement willi the guarantees. But one 

 brand of gluten feed and one of brewers' grains of this group 

 equalled the guai-antee of protein. The distillers' grains were 

 sufficiently higii in fal to olTsel the deficit in protein. The result 

 of the analyses are on the following page. 



The proprietary feeds, which are mixtures of various by- 

 products, are increasing in iiumbers and are widely adverti.sed. 

 They may be likened to the mixed fertilizers. They contain 

 protein and fat. but these nutrients are present in a variety 

 of substances, and some of the cheapest mill refuse is used in 

 their preparation, such as screenings from flour mills and lin,s(»ed 

 oil mills, oat hulls, rice hulls, flax fiber, corn cobs and so forth. 

 Such fillers are of uncertain digestibility and most of them 

 would be unpalatal)]e to livestock if fed separately. In the 



