464 



Materials stored in the lod^ per 100 grams of protein digested. 



The authors state that the results poiat strongly toward a tendency 

 in the animal organism to increase the amounts of protein laid on when 

 the protein in the food is increased. This is indicated by the above 

 table. The amount of fat laid on decreases, on the contrary, with the 

 increase of albuminoid food, that for period 4, when the largest 

 amount of protein was fed, being the lowest. 



According to Henneberg, under the most favorable circumstances 

 100 grams of albuminoids may cause a production of 51.39 grams of fat 

 in the animal body. The above table shows a production of 41.11, 

 30.70, and 30.73 grams of fat per 100 grams of albuminoids digested, 

 which indicated that albuminoids added to the maintenance ration and 

 fed to grown animals are worked over in the animal organism with 

 a relatively small loss. 



Whether the average amounts of protein and fat produced per 100 

 grams of protein-equivalents, as given above (10.17 grams albuminoids 

 and 30.83 grams of fat), can be regarded as a correct ration for all cases, 

 irrespective of the amount of protein added to the maintenance ration, 

 or whether 50 grams would produce a relative amount different from 

 that produced by 150 grams, the authors are not prepared to say. 



Observations made on the secretion of urine and on the production 

 of carbonic acid showed that the shearing of the sheep had no effect 

 on the metabolism of the food. 



Comparison of hay, rice meal, and Swedish turnips in fattening sheep, F. 

 Lehmann and J. H. Vogel {Journ.f. Landw., 38 (1890), pp. 199-214).— In a 

 stall experiment with two sheep, Swedish turnips produced a relatively 

 larger increase in live weight than either rice meal or hay (mixed 

 grasses). Whether this was due to the fact that, possessing a higher 

 rate of digestibility, the roots required less work on the part of the 

 digestive organs to obtain a given amount of digested materials, or 

 to other causes, the authors do not attempt to say. 



Observations on the milk of cows of different breeds, W. Kirchner [Milch 

 Zeitimg, 19 (1890), pp. 761-705).— Analyses of the milk of three cows, 

 Simmenthaler, East Friesian, and Jersey breeds, made twice each week 



