AMIMAL PRODUCTION. 495 



hay and cotton-seed meal with a little salt, the author concluded that the material 

 under consideration did not materially affect the digestibility of the ration. 



Notes on the absorption of fat, U. Lombroso (Compt. Rend. Soc. Biol. '[Paris'], 

 71, pp. 396-401; abs. in Zentbl. Physiol., 18 {1904), No. 18, p. 382). —The experiments 

 reported were made with dogs and have to do principally with the function of the 

 pancreas in the digestion of fat. 



Formation of fat from carbohydrates, M. Fischer {Fa/ding's Landw. /I;/., 53 

 {1904), Nos. 10, pp. 368-312; 11, pp. 412-417; 12, pp. 448-455, figs. 4).— Data regard- 

 ing the formation of fat from carbohydrates are summarized and discussed, a chemi- 

 cal explanation of such fat formation being one of the topics taken up. The author 

 concludes that the formation of fat from carbohydrates necessitates the presence of a 

 certain quantity of protein and that the protein of a ration must be increased when 

 the carbohydrates are increased in fattening providing the amount of protein is not 

 already sufficient. In the formation of fat from carbohydrates he believes that radi- 

 cals from the cleavage of protein exercise a reducing effect upon the carbohydrates. 

 The tissue protoplasm takes part in the reaction, an abundance of the latter being 

 necessary for the formation of fat. He calculates that 4 or 5 parts of carbohydrates 

 to one part of protein, in excess of the amounts needed for the physiological func- 

 tions of the body, are required. Some 40 to 50 per cent of these 2 nutrients is con- 

 verted into fat. The most economical proportion of protein to nitrogen-free nutri- 

 ents is spoken of, and the author points out that so many factors must be considered 

 that it is not possible to fix upon a general nutritive ratio which shall always fit a 

 given case. 



Cooperative slaughterhouses in Denmark, A. H. Hollmann {Folding's Landw. 

 Zlil., 53 {1904), Nos. 11, pp. 393-398; 12, pp. 440-448).— A descriptive article. 



The autodigestion of pepsin, A. Herlitzka {AM R. Accad. Lincei, Rend. CI. 

 Sci. Fix., Mat. e Nat., 5. ser., 13 {1904), II, pp. 51-57; abs. in Chem. < 'entbl, 75 {1904), 

 II, No. 10, pp. 784, 785) . — From experiments which are reported, the author con- 

 cluded that r>epsin undergoes autodigestion and is therefore to be considered as 

 a true proteid. The coefficient of digestibility varied directly with the time of 

 digestion. 



The anaerobic gaseous exchange of animal organs and the isolation from 

 animal tissues of an enzym causing fermentation, I, J. Stoklasa {Ztschr. 

 Landw. Versuchsic. Oesterr., 7 {1904), No. 6, pp. 453-483, figs. 2).— Experiments are 

 reported and discussed. 



Dried molasses-beet-pulp, J. B. Lindsey {Massachusetts Sta. Bui. 99, pp. 1-10). — 

 The method of manufacturing molasses-beet-pulp is described and analyses and the 

 results of a digestion experiment with sheep reported. It was found that on an 

 average of 3 trials the coefficients of digestibility were as follows: Dry matter 85, 

 protein 64, crude fiber 84, and nitrogen-free extract 91 per cent. 



In a feeding test covering 12 weeks with milch cows molasses-beet-pulp and corn 

 meal were compared, the average milk yield per cow on the former ration being 27.7 

 lbs. and on the latter 29.1 lbs. On the molasses ration the total solids were 155.9 

 lbs. and the total milk fat 54.1 lbs., and on the corn-meal ration these values w T ere 

 L62.6 and 56.0 lbs. From the recorded data the author calculates that it required 

 from 3 to <i per cent more digestible and dry matter to make milk and milk ingredi- 

 ents with the molasses-beet-pulp ration than with the corn-meal ration. The proper 

 method of feeding molasses-beet-pulp is discussed and rations including this material 

 suggested. The author notes that successful results were not obtained when the 

 attempt was made to feed molasses-beet-pulp to pigs, the animals uniformly refusing 

 it. Among the conclusions drawn regarding molasses-beet-pulp were the following: 



"It keeps well, will absorb large quantities of added water, has a slightly laxative 

 effect, has proved a palatable and healthful food for dairy stock and satisfactory as a 



