31 



G. DISCUSSION OF THE RESULTS. 



I. Protein Feeds. 



The cottonseed meal on sale the past year was 



Cottonseed, rather above the average in composition. The low- 

 Linseed and est percentage of protein found was 41.15, and the 

 Gluten average of the 69 samples showed 45.60 per cent of 

 Products. protein, equivalent to 7.3 of nitrogen. If purchasers 

 will insist on having onlv guaranteed meals, this 

 standard can surely be maintained. 



Most of the old process linseed meal formerly contained 35 

 per cent of protein. The samples collected the past year averaged 

 only 32.26 per cent, and a number of lots contained less than 30 per 

 cent. A noticeable exception was the meal put out by Kellogg & 

 Miller, which was guaranteed, and tested 37.6 per cent of protein — 

 a per cent above the guaranty. The new process meal showed an 

 average of 37.54 per cent .protein. While it can hardly be said that 

 the old process meals were adulterated, most of them were certainly 

 below the average quality. The larger part of the linseed collected 

 was not guaranteed. 



The gluten meals examined were of good quality, although in 

 many cases the guarantees were not met. A few samples of 

 gluten feed were collected containing 17 to 22 per cent of protein, 

 but the larger number showed 25 or more per cent. 



Germ oil meal — the pulverized germ of the Indian corn — was of 

 the usual good quality. Its protein guaranty of 25 per cent is too 

 high, 22.65 P^"^ c^-'^X. being found two years ago, and 21.85 P^^ cent 

 the past year. This msal should not be confused with linseed meal, 

 sometimes spoken of as " oil meal." 



Wheat bran and middlings were fully up to the usual 



Wheat OffaL average in composition. Purchasers are advised, 



however, to give the preference to those articles 



branded with the names of reputable manufacturers, or to examine 



the article closely before buying, in order to note the quality. 



Mixed feed, so called, consists of the entire wheat offal, or mixtures 

 of bran, coarse and flour middlings. The larger the proportion of 

 flour middlings the more valuable the feed. Different brands show 

 noticeable variations in the proportion of the several ingredients. 



