10()8 EXlM-nilMKAT STATION lilX'ORD. 



Lr.ilois li.-ivo foniul in licrbivoroiis iiiiinuils iiiid more tliiin in the earnivorons 

 animals. The protoalitnmose was much h'ss than the other alhumoses. which 

 were less in the pylorus than in other parts, but the dittei-ence increased durinj; 

 the process of digestion. Peptone and nitrogenous substances not precipitated 

 by picric and pliosphotungstic acids remained fairly constant in all portions. 

 The percentage of acidity was much the highest in the pylorus. In the small 

 intestine the percentage of peptone was much larger than in the stomach. 



Food requirements of growing' and fattening swine, W. Diktuicii (Illinois 

 tSta. Circ. lJ(i. in). /X, churl 1). — This circular iiri'scnts deductions drawn from 

 experiments in pig feeding now in progress at the Illinois Station. A method 

 of feeding is outlined by which 4*0 per cent greater gains in live weights were 

 produced than by the use of the Wolff-Lehmann standard. 



" It was found that maximum gains are produced at a minimum cost, l>y 

 starting the pig on approximately 0.6 lb. of digestible crude protein per day \\qy 

 100 lbs. live weight, increasing tlie quantity to 0.7 during the first 7 weeks, 

 decreasing to 0.6 the following 4 weeks, and then feeding 0.(5.5 lb. during the 

 last 7 weeks of the growing period. During the first 4 weeks of the fattening 

 stage this is reduced to approximately 0.33 lb., which is fed to the close." 



The deposition of fat and lean in hogs, R. R. Dinwiddie and A. K. Shout 

 (Arkansas Nta. Bui. 103, pp. 237-250, pgs. !)). — Comparative tests were made of 

 the lard and bacon types of liogs in the utilization of wnde and narrow rations. 



Iri all, 38 i)ure-bred hogs were fed, the lard type being represented by the 

 roland-China. Berkshire, Duroc Jersey, and Ohio Improved Chester, and the 

 bacon type by tlie Yorkshire and Tamworth. The rations fed consisted of corn 

 chops, bran, middlings, blood meal, and tankage, and there were 6 feeding 

 periods of 21 days each. With the lard type of hog 2 lots on a narrow ration 

 with a nutritive ratio of 1 : 3, made an average daily gain per head of 1.42 and 

 1.21 lbs.", resiiectively, whereas 2 lots with which there was a wide nutritive 

 ratio, 1 : S, made corresponding gains of 1.07 and 0.51 lbs., respectively, and 1 lot 

 with a medium nutritive ratio, 1:5, made an average daily gain of O.S lb. per 

 head. On similar rations the average daily gains per head were for 2 lots of 

 the bacon type on a narrow ration 1.54 and 1.29 lbs., resj^ectively, for 2 lots on a 

 wide ration O.Sf) and 0.29 lb., respectively, and for 1 lot on a medium ration 0.93 

 lb. The bacon hogs made more noticeable gains during the first half than in the 

 last half of the test. 



" Measured by actual increase in weight and by increase relative to feed con- 

 sumed, the lard type of hog possesses much the larger capacity for utilizing 

 rations of wide nutritive ratio. 



"By the same standard the bacon hogs showed slightly the greater capacity 

 for digesting narrow or proteid rations. . . . 



" In both types of hogs the largest increase in weight relative to feed con- 

 sumed and api»arently the fattest hogs resulted from the feeding of the more 

 nitrogenous ration. 



"Of all the breeds tested the Tamworth proved to be least adapted for 

 growth on an exclusive corn ration. 



"At the close of our feeding experiments all the lard type of hogs both on 

 narrow and wide rations, although varying in weight, were in a finished condi- 

 tion, ready for the butcher. Moreover, the most tyi)ical ' fat back ' of all was a 

 Berkshire fed on narrow ration. Of the 5 bacon hogs on wide ration 2 only 

 (Yorkshires) were fit for slaughter." 



Pork production under North Dakota conditions. W. B. Richards (\nrlh 

 Dnkdtd Sta. Bill. f^3, /*/). 197-831. fifjs. /6).— This bulletin describes the best 

 methods of rearing and feeding swine in North Dakota, the information con- 

 tained therein being based on results of experiments at this station and on the 



