¥ 



ANIMAL PRODUCTION. 173 



and oat feed, corn and oat feeds, Iiominy feeds, rice feed, poultry feeds, wlieat 

 offals, and beef scraps. According to the author, in general the cotton-seed 

 meal samples were of good quality. As regards cotton-seed feed, " one pound 

 of choice cotton-seed meal is equal to 2 lbs. of cotton-seed feed." In general 

 the distillers' grains were somewhat below their guaranty in protein. 



In connection with the study of gluten meals and feeds the goods and feeds 

 were examined for the presence of foreign coloring matters and for the pro- 

 portion of acid present, the results being compared with those obtained with 

 corn meal. "All the samples, including the corn meals, exhibited traces of 

 •sulphuric acid, but those glutens which gave the highest percentages of total 

 acidity usually seemed to carry more sulphuric acid than the others. The 

 greater part of the acid present in excess, however, was hydrochloric, which 

 varied considerably in the different samples, the variations for the most part 

 agreeing quite closely with the variations in total acidity." In 8 samples coal 

 tar color was detected, in G none was found, while the remainder were not 

 examined for such materials. 



The feeding stuii's were also examined for the presence of weed seeds and 

 germination tests were made. The nitrogenous feeds were with 2 exceptions 

 free from weed seeds. Such seeds were quite generally found in varying 

 amounts in the miscellaneous reenforced feeds and poultry feeds and in the 

 majority of the wheat offals, though usually weed seeds were reported as few 

 in number in this class of goods. " The most flagrant offenders carrying live 

 weed seeds are the molasses or sugar feeds." 



Relieving that mold growth might have interfered with germination in the 

 trials which were undertaken, this point was further studied, mold being hindered 

 by treating the seeds with a dilute solution of formaldehyde. It was found 

 " that a number of the brands of feeds which showed no germination in the first 

 test did, imder more favorable conditions, sprout numbers of the weed seeds which 

 they contained." The general question of the introduction of weed seeds into 

 feeding stuff's, both whole grains and other feeds, is discussed with reference to 

 State legislation on this matter and the bearing of a decision of the U. S. Board 

 of Food and Drug Inspection on this subject is pointed out. 



Commercial feeding stuffs, T. L. Calvert {Off. Rpt. Sec. Ohio Bd. Agr. on 

 Com. Feed St^iffs, 1907, pp. 26). — -Under the provisions of the State law analyses 

 were made by H. A. Weber of 126 brands of dried distillers' grains, cotton-seed 

 meal, gluten feed, malt sprouts, hominy feed, commercial mixed feeds, including' 

 those containing molasses, ground flax flalies, condimental feeds, meat meal, and 

 poultry feeds. 



Licensed concentrated feeding stuffs, F. W. Woll and G. A. Olson ( Wifieon- 

 sin Sta. Bui. 163, pp. 19-31). — A list is given of the concentrated commercial 

 feeding stuffs which have been registered by manufacturers for the calendar 

 year ending December 31, 1908. 



Experiments on the digestion of different quantities of feed by swine, 

 T. Katayama {Landw. Vers. Stat., 68 {1908), No. 1-2, pp. i-iO).— The experi- 

 ments reported show, in the author's opinion, that the quantity of feed taken 

 did not materially affect the digestibility of the different constituents of the 

 ration. 



Studies of the nitrogen, phosphorus, and sulphur iii organic combination 

 in vegetable products, A. Stutz?:r (Biochem. Ztschr., 7 (1908), ^o. .'i-6, pp. 

 Jt11-.'t87). — Rye, oats, cocoanut cake, cotton-seed meal, hay, and other vegetable 

 materials were examined and in connection with the work natural and artificial 

 digestion experiments were also made. The view that phosphorus occurs prin- 

 cipally in organic forms in plants and especially in the seeds was confirmed 



