382 



KXPERIMENT STATION TCECORD. 



Production values per WO pounds of a number of feeding stuffs — Continued. 



In connection with the data summarized, protein requirements and other factors 

 are briefly considered. 



Second report on feeding-stuff inspection, P>. W. Kilgore, C. D. Harris, J. M. 

 Pickel, and W. M. Allen {Bui. N. C. Bd. Agr., 25 {1904), No. 11, pp. 67, figs. 15).— 

 The State feeding-stuff law is quoted and analyses, both chemical and microscopical, 

 carried out under its provisions, are reported of 500 samples of wheat bran, middlings, 

 ship stuff, corn and oat feed; rice, peanut, and saccharin feeds; gluten meal and feeds, 

 chops, distillers' grains, hominy meal or feeds, corn-and-cob feeds, linseed meal, 

 cotton-seed feeds, cotton-seed meal, dried beet pulp, mixed and mill feeds, mill 

 sweepings, soy beans, wheat screenings, cane seed and corn iw<\. starch meal, graham 

 wheat, stock feed, oats (whole and ground), meal and bran, and flour. 



Some of the conclusions drawn regarding the extent of adulteration of some of the 

 feeding stuffs follow: In the case of wheat bran 75 per cent of the samples examined 

 were not up to the standard as regards protein content, The 20 samples of rice feeds 

 examined were all found to be up to the standard. The peanut feeds included a feed 

 for chickens, a feed for pigs, screenings, meal, middlings, and bran. Peanut meal, 

 middlings, and bran, though differing in name, were all found to be made up of 

 ground peanut hulls. Of the 84 samples of cotton-seed meal examined, 18 were below 

 the legal standard. 



The examinations which have been made, the authors state, show that the follow- 

 ing adulterants are used to a considerable extent in making up the stock feeds sold in 

 North Carolina: Corn, bran, rice chaff, ground corncobs, peanut hulls and middlings, 

 oat hulls and dust, mill sweepings, screenings, cotton-seed hulls, and similar products. 

 The composition of these materials is spoken of with the object of calling attention 

 to their low nutritive value. 



Investigation regarding 1 succulence, F. W. Robison (Michigan Sta. Spec. Bui. 

 ■ '>:. />/>. 15 ). — Believing that the amount of energy required to assimilate feeds should 

 be taken into account in determining their true feeding value, and that the propor- 

 tion of succulent material would have an important bearing on this question, two 

 series of experiments were undertaken with cows in which the digestibility of pro- 

 tein was determined on the basis of nitrogen in fresh feces, nitrogen in dried feces, 

 and feces corrected for the proportion of metabolic products present. Foods, urine, 

 and feces were analyzed, and the balance of income and outgo of nitrogen also 

 determined. 



In estimating metabolic products in feces, the ether, alcohol, water, and limewater 

 method was employed. In periods 1 and 4 of the first series of tests, the food con- 



