392 



comi^aiisons, TliP losnlts art" tabulated fur i'.;;? days, frnni XdvonilxT 7 

 to June -57. The total jiaiu made by the three steers on the eottoii-seed- 

 ineal ration was 1,150 i)Oiin(ls, and by those on the corn meal ration 

 1,145 pounds. There was practieally no ditlerence in the amount of 

 coarse ioddei- consumed by the two lots. Xo com]taris<»n of breeds is 

 attem[»ted. but the amount of dijicstiblc nutrients consumed i»er l.(K>() 

 l>i»unds li\(' wciuht daily 1»\' the two luts is calculated, and tliese lijjfures 

 are compared with the (lerman standaid recommended for animals 

 under similar conditions. 



In no instiiiKf \v:is tho total amount of tligestil>le uutrieuts so larjjf as talk'd lor 

 in thr staiulaitl rations, and there was uo case where the proportion of <ligestil)le 

 protein was as large. In three cases the anionut of jtrotein fell very nnich below 

 the theoretical ration. * * » 



It can not be doubted that the experiment adds nmch to tin- imreasinf; V(dnnic of 

 testimony th.at for j^rowiny animals so large an amount of digestible protein is not 

 necessary as is called for by the (Jcnnan .standards. 



FEEDING^ experiment Willi DIKFERENT BREEDS OF SWINE (pp. 



75-78). — The breeds represented were Herksliire. Cheshire, I'oland- 

 China, Chester White, au<l Yorkshire. Tlu're were two i)igs of each 

 breed, one male and one female, both from the same litter, and the 

 age at the bejiinning of the trial ranued fiom ."» to S weeks. The food 

 given consiste<l of skim milk and wheat middlings, the proi>or(ion of 

 the hitter being gradually increased to the end of the trial, when \ cry 

 little milk was fed. A small amount of llungaiian grass and corn fod- 

 der were also fed during one period, 'file feeding lasted from 175, toL'lO 

 days with the different breeds. The r«»od consumed, gain in weight, and 

 the rehition betwe«Mi gain in weight and anioutit of food eonsunu^d are 

 tabulated for each breed. 



In gintral no striking ditVcremi's ar<' obsrrvrd in the rate of growtli. or in tlio 

 relation of the amount of food to growth, with tliese several brei-ds of swine. 



The daily rate of growth of our animals issi-in to have been. Che.shires 1.2.S pounds, 

 Yorkshires 1.1 1 pounds, ('Juster Whites l.ns poiinils, rolaud-Chinas 1.01 pounds, 

 Berkshires 1 poun<l. 



It does not ai)pear that tin- animals growing most rajiidly requin-il the least food 

 for a jiound of growth. " " ' Altliongli tlie Merkshire pigs madr tlie smallest 

 gaii\ they n-tniireil the least food for each jumnd of growth, and thi' C'heshires, 

 making tin- largest gain, consumed tlie most food for eaeli jxiund of increa,se of 

 ■weight. » * " 



The ratio of food to growth was very dillVrmt during the early part of the 

 experiment from what it was the latter jtart. In )ieriod 1, including a]i]>roxinuitely 

 the first IW days of the exi)eriment, not far from '2 p«uinds of digestible food pro- 

 diiied 1 pound of growth, while during the last ."iO days or thereabouts the ratio was 

 4 pounds of tligestible food to 1 jionnd id" growth. The ratio of the second period 

 stands between those of the tirst and t bird. - - * Certain of the animals, notably 

 the Herkshircs and Chester Whites, nnide during the first 3 numths a larger percent- 

 age of their entire growth than diil the other breeds. The ditVmcnce, however, is 

 not very marked. 



Fertilizkk hxpkkimknts, \V. Ualkntim:, :M. S. (pj). 70-101). 

 EjD'cds u/d liferent forms and mixtnn's of fertilizers (pp. 79-89).— This is 



