ANIMAL PRODUCTION. 1167 



season gave results wbk'h agreed iu nearly every case with the ^Mlarallties of 

 the manufacturers." 



[Condimental and commercial feeding stuffs], W. V. Uamki.e (Ann. lijjt. 

 Ontario Aijr. Col. nnil E-vpt. Farm, .i.i (1907), pp. 89-0//) . — Analyses of a num- 

 ber of samitles of condimental and stock feeds, with microscoiii<al examinations 

 in some cases, indicated that these goods contained in addition to grains or 

 similar filler small quantities of a variety of substances, such as fenugreek, 

 gentian, cayenne, and charcoal, which possess medicinal qualities to whidi " is 

 attributed the wonderful nutritive and curative properties claimed fof them." 



"The nutritive value of 'stock foods' is thus shown to l)e no greater than 

 that of the ordinary grains of which they are largely comi)osed. Their niedici- 

 njil value depends largely upon the aromatic seeds and roots used as a tonic 

 for the stomach, on charcoal as an absorbent, and on tlie purgative effect of 

 Epsom and (JIauber salts. The quantity recommended to be fed is usually so 

 small that very little nutritive effect can be expected unless the material be 

 fed for a considerable length of time." 



Analyses are also reported of a number of samples of bran, buckwheat feed, 

 gluten feed, gluten meal, gluten liquid, nut-oil cake, linseed meal, whole linseed, 

 malt combings, corn meal, cotton-seed meal, beet meal, rice meal, bean meal, 

 a molasses feed, commercial feeds, and ^Manitoba weed seeds. 



The comparative value of different groups of feeding stuffs is discussed with 

 relation to feeding farm animals. The weed seeds contained 9.82 per cent 

 water, 13.84 per cent protein, 4.47 per cent fat, 63.90 per cent nitrogen-free 

 extract, 4.7S per cent crude fiber, and 3.19 per cent ash. As the author notes, 

 the weed seeds judged by composition would have a decided nutritive value, 

 but when fed to chickens the results were not satisfactory and many of the 

 chickens died. " It is believed that the weed seeds contain aromatic compounds 

 which are poisonous to poultry." 



Results of feeding- stuff control at the government experiment stations, 

 1906-7, Van Der Zande and Knuttel (Vcrslag. cii Mcdcd. Dir. Laiidb. Dvpt. 

 LaiifJb. Nijv. en Handel, 1907, No. 5, pp. 73-75).— Results of the feeding stuff 

 Inspection work of the Dutch experiment stations. 



Fresh and dried potatoes in metabolism of Herbivora, O. Hagemann and 

 M. S. Karpow (Landw. Jahrb., 35 {1906), No. 4, pp. 371-402).— In experiments 

 with sheep fresh potatoes were compared with so-called potato flakes, a com- 

 mercial feeding stuff made by drying potatoes iu thin sections after they have 

 been steam cooked. The digestibility of the rations was determined, as well as 

 the income and outgo of nitrogen, and respiration experiments were made in 

 which the respiratory quotient was determined. 



According to the authors, 1,200 gm. of fresh potatoes per day fed witli 976 

 gm. of clover hay induced a gain of 17 gm. protein and 11.5 gm, fat, while the 

 potato-flake ration, made up of 276 gm. of dried potatoes and 882 gm. of clover 

 hay, induced a gain of 29.7 gm. protein and 30.4 gm. fat. The quantity of 

 flaked potatoes fed was equivalent as regards dry matter and organic matter 

 to the fresh potatoes. 



The utilization by Herbivora of the amid mixtures occurring in molasses, 

 W. VoLTZ {Arch. Physiol. \I'flii<ier], 117 {1907), No. 10-1.>, pp. .7}/-.7(;.n.— The 

 author's exiK>riments made with sheep led to the conclusion that the aniids 

 occurring in sugar-beet molasses can, within wide limits, serve in the same 

 way as protein in the metabolism of full-grown Herbivora. He regards it as 

 highly probable that Herbivora have the power to build up the nitrogen com- 

 pounds of higher molecular value from a small number of amid substances. 



Further experiments on the effect of asparagin on nitrogen metabolism 

 and gains in the animal body, M. Mullek (.1/x7(. I'hyaiol. [I'/liiyer], 117 



