344 ANNUAL REPORT OF THE Off. Doc. 



The usual name given in labeling this class of feeds, which contain 

 this product, is ground screenings meal. The process of grinding the 

 screenings to a fine meal, desti'oys the germ and thus prevents germ- 

 ination. Screenings meal will analyze from 15% to 17% of protein, 

 and therefore contains considerable feeding value. 



For the information of purchasers of this class of feeds, the law 

 requires that the ingredients be named on the sacks or attached 

 cards, so that when these feeds are offered for sale, their composi- 

 tion as well as the analysis can be found out by reading the informa- 

 tion printed on the sacks or cards. We have had a little trouble 

 with the method of guaranteeing cottonseed meal" In some cases 

 this feed was found to contain excessive amount of cottonseed 

 hulls, but the number of meals containing hulls which are sold are 

 becoming less. Purchasers of cottonseed meal should pay attention 

 to the guarantees given w^hich are often misleading because of tlie 

 so called sliding guarantee, as for example, — 38.02% to 43.00% or 

 more percentage of protein. Where such guarantees are given, the 

 higher figures are not often met and, therefore, it is recommended 

 that in buying this product you should base the sale on the lowei' 

 guarantee, as this figure will usually be met without any trouble. 

 The Association of Feed Control Officials, as well as our department, 

 is investigating the method of guaranteeing cottonseed meals. The 

 Chief Chemist inspected a number of cottonseed meal plants in the 

 South in an attempt to get some information on this subject, and it 

 was found that in the majority of cases the protein content could 

 be controlled and the guarantee given maintained. The result of this 

 inspection will, undoubtedly, help to make uniform the guaranteeing 

 of cottonseed meal and it is hoped the manufacturers can be per- 

 suaded to give only one guarantee for this product and thus prevent 

 confusion and misrepresentation where the sliding guarantees are 

 given, as is the case in many brands now being sold. 



Registrations for practically every brand of feed sold during 1914 

 was received by the Department. The total number of registrations 

 received was, approximately, 625, representing 2,300 different brands. 

 In a number of cases in these registrations, when received, where the 

 method of giving the ingredients, or where it was thought that the 

 feeds were not free from weed seeds or other materials, samples were 

 asked for from the companies and carefully examined. In a num- 

 ber of cases registration was refused for certain brands which con- 

 tained by-products prohibited by our law. In other cases they were 

 sent back for correction, with directions for stating the true guaran- 

 tees and compositions. We have had a number of requests for the 

 digestible or true feeding value of a number of mixed feeds, and in 

 some cases, this information can be given. In the majority of cases, 

 however, digestion experiments have not been made on many of the 

 by-products used in mixed feeds and, therefore, in such cases where 

 this information is not known, and where the amount of each in- 

 gredient used in a mixed feed, and the analysis of same, is not 

 known, this information cannot be accurately given. A number of 

 digestion experiments are being mnrle. however, on many of the by- 

 products used for mixing feeds by our Experiment Station and in 

 other states. It is honed that in the near future the results of this 

 investisration will be in such shape that the true feeding value of 

 most of the feeds can be estimated more accurately than can now be 

 done. 



