ANIMAL PRODUCTION. 371 



The general conclusions drawn from tlie entire series of experiments are tliat 

 an excess of protein .in the feces is due to indigestible protein of amid extracts 

 and products of metabolism, and that ammonium salts cau be substituted in 

 part for pure protein both for maintenance and for milk production. The 

 smaller the protein content of the feces, the higher is the feeding value of the 

 ammonium salt. 



Horse chestnuts as a feeding stuff, AI. Kling (Landw. Vers. Stat., 73 (1910), 

 No. 6, 1)1). S97-42Jf). — The fresh horse chestnuts consisted of 82.61 per cent 

 kernel and 17.39 per cent shell. Chemical analysis showed that the kernel of 

 the fresh nut was made up of water 50.G per cent, protein 3.99 per cent, fat 

 3.47 per cent, nitrogen-free extract 39.04 per cent, fiber 1.21 per cent, and ash 

 1.06 per cent. The husk contained water 52.03 per cent, protein 1.70 per cent, 

 fat 0.11 per cent, nitrogen-free extract 34.80 per cent, fiber 10.25 per cent, and 

 ash 0.51 per cent. The air-dried kernel contained 14.20 per cent of water and 

 the air-dried husk 13.99 per cent. 



The article contains a review of investigations in feeding horse chestnuts, 

 and a bibliography of the subject is appended. 



[Soy cake v. linseed cake], W. Bruce (Edinb. and East Scot. Col. Agr. Bui. 

 21, pp. 15, charts 2; Irish Farming World, 23 {1910), Nos. 1181, pp. 103^ 1035; 

 1182, p. 1060). — Experiments were carried out on 2 different farms under the 

 auspices of the Edinburgh and East of Scotland College of Agriculture. 



In the first experiment 2-year-old Irish bullocks were fed for 121 days on a 

 basal ration of linseed cake, Swede turnips, oat straw, and hay. With linseed 

 meal as a supplement the cost of gains in live weight per hundred were 

 f 1 16s. 4d. ; with soy-bean cake containing 6 per cent oil £1 18s. IJd. ; and 

 with compound soy-bean cake £1 19s. Ifd. In an experiment on another farm 

 the gains per hundredweight were with linseed £2 Is. 7d. ; with soy-bean cake 

 containing 6 per cent of oil £1 17s. 3d. ; and with soy-beau cake containing 11 

 per cent of oil £2 3d. When linseed cake was fed as a supplement to home-bred 

 cattle the corresponding gains cost £2 2s. 8d. 



The conclusion drawn is that at £0 15s. per ton soy-bean cake is a more 

 expensive feeding stuff than good linseed cake at £9 per ton. The poorer in oil 

 the better the results. 



Chemical analysis of fodder plants in southwest Africa, C. Grim me (Jahrb. 

 Deut. Landw. Gcsell., 25 {1910), No. 3, pp. 658, 659). — The grasses and other 

 forage plants which were analyzed included the following : Cynodon dactylon, 

 Aristkla uniplumis, Andropogon contortus. Acacia hercroen, PeUophoritm afri- 

 canmn, Croton gratissi)n'us, Flueggea obovata, Combretum primigenium, Nido- 

 rella auricnlata, Tribulus pechuelii, Tamarix articulata, Catophractcs alexandri, 

 Tribulus terrestris, Atriplex vesicaria, RMgoziim trichotomum, Leucosphwra 

 haincsii, ZijgophijUum sp. and Aitonia capensis. 



Notices of judgment ([/. K. Dept. Agr., Notices of Judgment 650, pp. 12; 691, 

 pp. 2) . — These relate to the adulteration and misbranding of *' No. 3 White 

 Oats" and the misbranding of stock feed. 



rattening cattle on beet pulp {l\icifw Rural Press, SO {1910), No. 2'/, p. 

 480). — ]\Iethods of fattening steers on beet pulp and straw hay or alfalfa are 

 described. 



Economical beef production, H. R. Smith {Nebraska Sta. Bui. 116, pp. 52, 

 figs. 15). — A series of experiments is reported on the economy of beef produc- 

 tion as affected by the food and by the individuality of the animal. 



In feeding supplements to corn in rations for steers, 2-year-old grade Short- 

 horns and Herefords weighing about 1.150 lbs, each were fed for 8 weeks on a 

 S10S8"— No. 4—11 6 



