510 



EXPERIMENT STATION RECORD. 



The results of the experiments are expressed iu full in tabular form. 

 In the following table the coefficients of digestibility are given : 



Coefficients of digestibility in experiments with steers. 



CoiD silage: 



Steer 1 



Steer2 



Steer 3 



Steer4 



Average . . 

 Cowpea silage : 



Steer 1 



Steer2 



Steer 3 



Steer4 



Average . . 

 Soja-bean silage : 



Steer 1 



Steer 2 



Steer 3 



Steer 4 



Average .. 

 Corn fodder: 



Steer 1 



Steer 2 



Steer 3 



Steer 4 



Average . . 



Ash. 



Per cent. 

 28.9 

 35.0 

 31.9 

 32.0 

 32.0 



32.0 

 30.4 

 29.1 

 29.7 

 30.3 



27.2 

 29.4 

 27.5 

 27.7 

 28.0 



24.0 

 21.4 

 14.1 

 18.3 

 19.4 



The coefficients of digestibility of corn silage, soja-bean silage, and 

 corn fodder are compared with similar results obtained in other Ameri- 

 can experiments. 



The author draws the following conclusions : 



•'' The composition of cowpea silage corresponds very closely to that of clover hay, 

 the most important difference heing iu the higher percentage of fat fonnd in the 

 clover, but the digestibility of the cowpea silage is so much greater that it furnishes 

 an equal amount of fat and much more protein and total energy than the clover hay. 



" Soja-bean silage resembles clover hay l>oth in composition and digestibility. It 

 furnishes an equal amouut of protein, more fat, but less total energy than clover 

 hay. . . . 



"Corn fodder and corn silage have about the same digestibility for total dry 

 matter and furnish nearly equal amounts of energy. The fodder furnishes more 

 digestible carbohydrate extract, but the silage slightly more of the other nutrients. 



"As comimred with cowpeas and soja beans, the corn fodder and corn silage have 

 a much higher value for energy or fat jiroduction, but the cowpea silage and soja- 

 bean silage are far more valuable for animal growth or the production of milk." 



In an appendix the author discusses briefly the comi^osition, digesti- 

 bility, and uses of foods, and gives in tabular form the composition 

 and digestibility of some American feeding stuffs. Wolff's feeding 

 standards are also quoted. 



Digestion experiments {Mississippi Sta. Bpt. 1895, 2>P- 79-89). — 

 Seven tests are reported with sheep to determine the digestibility of 

 vetch (fed green), red clover hay, hairy vetch (fed green), crab grass 

 hay, Johnson grass hay, and a mixture of 1 part of cotton-seed meal 

 and 15 parts of crab grass hay. Five lots of 2 animals, one of 5, and 

 one of 6 were used. Full data for the experiments are tabulated, 

 including analyses of the feeding stuffs, and uneaten portions, and of 

 the dung. 



