ANIMAL PRODUCTION. 5V>5 



Albumin in relation to hygiene and the feeding problem, Finki.er and H. 

 LiciiTENFELT {Centbl. Alkj. Gemndheltspfl., 21 {1902), ,Sup., pp. Vl+lStJ).— The 

 authors discuss especially the nutritive value of meat extracts, plasmon, and other 

 similar nitrogenous food products. In many cases the analyses of such goods are 

 rei>orted as well as digestion and metaboHsm experiments. 



Experiments on the amount of food required daily by man with especial 

 reference to protein, R. O. Neumann (Arch. Ilyg., 4o {1902), No. 1, pp. 1-87, 

 dijtiix. .)').— The author discusses dietary standards and summarizes results, quoting 

 extensively from the Hterature of the subject. He also reports dietary studies and 

 metabolism experiments, of which he was himself the subject, covering a total of 

 746 experimental days. On an average the daily diet furnished 74.2 gni. protein, 

 117 gm. fat, and 213 gm. carbohydrates, the energy value being 2,367 calories. This 

 was sufficient for maintaining the body weight, which was on an average 70 kg. 

 The conclusion is drawn that it is possible to maintain nitrogen equilibriimi on a 

 much smaller quantity of protein than Volt's standard calls for without, at the same 

 time, increasing the amount of carbohydrates. On the contrary, he believes the 

 amount of carbohydrates (500 gm. ) may be diminished. The author discusses his 

 results at length and among other points considers the energy value of alcohol. 

 The article contains a bibliography. 



ANIMAL PRODUCTION. 



Analyses of commercial feeding stuffs, J. L. Hills, C. H.' Jones, and B. 0. 



White ( Vrniunit Stu. BuL 97, pp. 11-24) . — In accordance with the State feeding 

 stuff law, analyses were made of 218 samples of cotton-seed meal, cotton-seed feed, 

 old and new process linseed meal, gluten meals and feeds, commercial feeds and 

 cereal breakfast food by-products, calf meal, and animal meal. None of the cotton- 

 seed meals, feeds, or wheat products was found to be adulterated. 



"The better grades of oat feeds, corn and oat feeds, etc., were found, as usual, to 

 meet the claims made for them by the manufacturers. The poorer grades — likewise 

 as usual — were of lower grade than even their small promises indicated. 



"Ninety per cent or thereabouts of the provenders (other than the output of the 

 oatmeal mills) seem to be above reproach. Ten per cent were more or less open to 

 question, while a few were almost surely laden with extraneous hulls." 



Fodders and feeds, L. A. Voorhees and J. P. Street [New Jcrmj Sta». Ept. 

 1901, pp. 78-1361.— Concentrated feeding stuffs (pp. 78-128).— Abstracted from 

 another publication (E. S. R., 12, p. 675). 



Average analyses of fodders grid feeds (pp. 129-134). — A compilation of analyses 

 made at the station of fodders and feeding stuffs. 



3Iarkct prices of commercial feeds (pp. 135,136). — The authors givfe in tabular form 

 figures showing the average cost of a number of commercial feeds in New Jersey 

 since 1895, the records on which the figures are based in each case covering the 6 

 months preceding January 1. 



By-products of the starch industry in the United States (Jour. Soc. Art.s, 50 

 (1902), No. 2592, pp. 737, 738). — A brief descrijitive and statistical article on starch 

 by-products used as feeding stuffs. 



Zein as a nutrient, I. W. Szumowski [Ztschr. Phy.nol Chem., 36 (1902), No. 2-3, 

 pp. 198-218, pi. 1). — The chemical characteristics and feeding value of zein, the 

 principal proteid of maize, were studied. According to the author, dilute caustic 

 alkali (1 per cent solution) induces a modificatioirof zein which is soluble in water. 

 When maize was fed to geese and doves zein did not accumulate in the organs of the 

 l)ody. Zein injected into the circulation acte<l as a poison and was stored up in the 

 liver. 



Experiments on the composition and digestibility of dried potatoes, 

 0. Kellner, J. VoLHARi), and F. Honcamp (Dcut. Liindii\ Presse, 29 (1902), No. 85, 



