llJ-'U) ANIMAL PRODUCTION. 373 



Tilt' view llial iiit'lah(iliz;il>l«' ciicrjjy reprcsciils niaintciiiiiico valuo and n<'t 

 eiii'i'U'.v iHdducUon value is deemed erroneous, for in practice only ii part of the 

 nie(alMiii/,al»le ener{;y Is used for maintenance. 



Digest and copy of revised feeding-stulTs law (New Jersey Stan. Cire. JOD 

 {imU), pp. 8).—X revision of Circular 10 (E. S. U., 28. p. 3G4) giving the text 

 of the 1012 fenlinu'-stulT law as anuMided in lOlG and 1919. 



Feeds and their use: Inspection and analyses, J. I>. TfUNKU, II. D. Speaks, 

 nTid A. M. I'KTKR {KcnturLy .S7«. Ilid. 223 {HUH), pp. 77-2.55).— The prottnn, fat, 

 and liher content of samples of the following materials are reported : Meat 

 scrap, tankage, alfalfa meal, hrewers' dried grain, distillers' dried grain, ))arley 

 feed, harley nuxed feed, coconut oil meal, dried beef pulp, shelled corn, corn 

 chop, corn bran, corn feed meal, corn gluten feed, hominy feed, cottonseed meal 

 (choice, prime, and good), cottonseed feed, linseed meal, rice bran, rye mid- 

 dlings, rye mixed feed, wheat bran, shorts, and middlings (with or without 

 screenings), wheat mixed feetl, red dog, and a variety of compounded grain 

 fei'ds, jtroprietary stock feeds, calf meals, and poultry feeds. 



l»elinitions of feeding stuffs and tables of average analyses derived from 

 various sources are included. 



Tlie feeding value of seed beet straw, M. Hoffmann (/?/. Zuckerruhenhau, 

 tS (f'.)lG), A'o. 18, pp. 208-212).— The author reports the proximate composition 

 of 19 samples of the stalks of seed-sugar beets and mangels, and cites the 

 digestion coetticients determined by Eisenkolbe (E. S. R., 23. p. 175). 



Is wild vetch seed a safe feed? R. A. Ooktxer {nrccdefn Caz., 77 {1920), 

 Kd. /.'/. pp. 12.i0. 12.}2). — The author reports brief experiments at the Minnesota 

 Kxperiment Station in which liog.s were fed seeds of the wild vetch {Vicia 

 anfiusfifolia), a weed in wheat fields whose seeds accmmdate in large quanti- 

 ties in IMinnesota mills but are not generally utilized as feed since they are 

 known to yield hydrocyanic acid. In the sample fed the hydrocyanic acid con- 

 tent was O.0O.S3 per cent. 



I'igs having access to ground vetch seed in self feeders where corn feed meal, 

 barley ft'ed, and rye middlings were also supplied consmned 0.4 lb. per head 

 iwr (lay (G.34 per cent of total ration). In other experiments, in which the 

 vetch seed was fed mixed with other grains forming as mudi as 20 per cent of 

 the ration, the hogs ate 1.5 lbs. per head daily with apparent relish and with- 

 out any evidence of prussic acid poisoning. A buckwheat-vetch mixture was 

 di.stasteful. 



The vetch seed did not prove to be so valuable a feed as was expected from 

 its chemical (^imposition (crude protein 24.1 per cent, nitrogen-free extract 49.6 

 |»er cent). Hogs fed corn, shorts, and tankage (8: 1: 1) made a pound of gain 

 on 4.0.1 lbs. of feed, while hogs fed a mixture in which vetch set^l rei)laced 

 two i»arts of corn recpiired 5.1G lbs. of feed for e(iual gain. It is consid(>red pos- 

 sible that vetch-seed protein is in some way deticlent, since»in one of the exj)eri- 

 HH-nts hogs fed a grain mixture contaitung vetch seed consumed twice the pro- 

 portion of tankage (.self-fed) consumed by another lot not fed the vetch. 



An S7-lb. lamb was fed various grain mixtures in which vetch seed com- 

 I'ri.sed up to .TO per cent of the total without ill effects, but the author advises 

 caution in feeding this material to ruminants. 



[Kj'eding ex|>erinients with steers and swine], E. S. fJoon (Kcuiurku Sta. 

 Upt. i;H8, lit. 1, pp. 30-33). — Continuation of previous wiyk with st(>ers and 

 swine (E. S. R., 39, p. 474) is reported. 



A further conipariscm of pasture r. barn for finishing steers confirmed previ- 

 ous conclusions that barn finishing produced larger and cheaper gains. More 

 inaiuire was also recovered from the animals fed in a barn. 



k 



