ANIMAL PRODUCTION. 1103 



"In the first experiment with hay alone, more nitrogen was found in the excre- 

 tions than was taken in the food. This discrepancy was probably due to insufficient 

 nitrogen in the ration to maintain the animals and they lost flesh, excreting some 

 body nitrogen. . . . 



"The larger part of the nitrogen, the most expensive element, and potash are 

 given off in the urine, hence the importance of saving all of this most valuable pari 

 of the manure. Nol only are other element- found in large quantities in the liquid, 

 but they are in much more available form than in the solid, only traces of 

 phosphoric acid were found in the urine." 



The nitrogen balance in the nutrition of ruminants, A. GouiNand P. A.NDOU- 

 \i;i> | .'. Cong. Internal. Aliment. Ration. BHail, 1905, Raps., pp. / : : I : 4 . Data are 

 reported regarding the proportion of nitrogen excreted in the mine and feces. The 

 authors believe that such data should be used with caution, especially when it is 

 remembered that the food material remains a long time in the digestive tract of 

 Herbivora. 



Concerning- the assimilation of protein in the animal body, E. Abderb \i- 

 DENand F. Samuely (Ztschr. Physiol. Chem., 46 {1905), No. / ?, pp. 193 200).— The 

 examination of the blood of horses under different conditions showed that the pro- 

 tein of food was without influence on the composition of serum proteid. 



The nutritive value of amids, B. von Strusiewicz (Ztschr. Biol., 41 (1905), 

 l>. 143). — From experiments with sheep the author concludes that amids have the 

 same value as pro teids, a deduction not in accord with the consensus of opinion of 

 other investigators. 



Phosphates in the ration of young- animals, Rasquin (2. Cong. Internal. 

 Aliment. Ration. BHail, 1905, Raps., pp. 62 68). — The work of other investigators is 

 summarized and tests briefly reported in which rations with and without added 

 phosphate (ground bone) were studied with chickens. On a powdered hone ration 

 the gain in weight was greater and the skeleton was heavier and contained a larger 

 amount of lime and phosphoric acid. Mineral phosphates, the author concludes, 

 are of value in the feeding of young animals. 



Watering farm animals, 1'. YVkkv ( .'. Cong. Internal. Aliment. Ration. BHail, 1905, 

 Raps., /'/>. 86-91). — Various questions concerned with the wholesomeness of the water 

 supply are taken up. The author recommends that more public watering troughs 

 he provided which will give a constant supply of water of good quality. 



Proceedings of Second International Congress for the Rational Feeding of 

 Farm Animals (2. Cong. Internal. Aliment. Ration. Betail, 1905, Compt. Rt //-/., pp. 

 192). — The programmes, list of members, proceedings, etc., of the Second Interna- 

 tional Congress for the Rational Feeding of Farm Animals, which was held in 1905 

 at the Universal Exposition at Liege. 



Resume of the principal experiments on cattle feeding which have been 

 carried on in the low countries, . I. .1. ( ). m: Vries (2. Cong. Internal. Aliment. 

 Ration. BHail, 1905, Raps., pp. 149-162). — Dutch investigations on cattle feedingare 

 summarized. The author believes that rations which have given satisfactory results 

 in practice should he studied by scientific methods. 



Feeding experiments with cattle designed for fattening and pasture, L. 

 Badwens (2. Cong. Internal. Aliment Ration. BHail, 1905, Raps., pp. 144-148). — Belgian 

 studies are summarized comparing horse beans with and without other concentrated 

 feed for yoUng cattle, but conclusions are not drawn. 



Experiments on fattening calves, F. Smbykrs ( .'. Cong. Internal. Aliment. Ration. 

 BHail, 1905, flaps., pp. 197-204).— The tests reported show that feeding whole milk 

 to calves is not profitable. 



Data ari' summarized regarding skim milk supplemented by other feeds, and 

 attention is directed to the bad results which were obtained m the feeding ot BOUT 

 milk. The author believes that the question of the better utilization of skim milk 



