MANUAL OF CATTLE-PE33DIKG. 



443 



the nutritive ratio may in some cases be advantageonsly 

 made wider, especially if tlie milk is very ricli. In some 

 experiments made long ago in Saxony,* three calves, four- 

 teen days old, and weighing 117, 130, and 114 lbs., were 

 fed daily as follows : No. 1 with 13.2 lbs. cow's milk and 

 13.2 lbs, whey; No. 2 with 22 lbs. of skimmed milk; and 

 Ko. 3 with 1Y.6 lbs. milk and 3.9 lbs. cream. 



The average consumption and the gain in weight per 

 day were as follows : 





Consumed. 



Nntncive 



Ratio t 



1: 



G-am 



per day. 



Lbs. 



Pojnds of 





Organic 



Substance 



Lbb. 



Protein. 

 Lbs. 



Sugar. 

 Lbs. 



Pat. 

 Lb% 



organic 



matter 



to 1 lb 



of growth. 



No. 1. . . 



2.3 



0.54 



1.29 



0.51 



4.8 



1.88 



1.35 



No. 2... 



2.0 



0.70 



1.02 



0.22 



2.3 



1.14 



1.88 



No. 3. . . 



30 



73 



1.02 



1.22 



5.G 



3.38 



0.97 



It will be seen that the gain in weight was strikingly 

 different, according to the food used. 



The least gain was made in the second experiment, 

 where the nutritive ratio was very narrow. In this case 

 there is little doubt that, in spite of the comparatively 

 small protein consumption of young animals, a considera- 

 ble waste of protein must have taken place, resulting in a 

 small gain. 



* Wolff: " Landwirtlaschaftliclie Fatterungslelire," p. 152. 



f In calculating the nutritive ratio, the fat has been converted into 

 ifcs '^starch-equivalent'^ by multiplying it by 2.5. The milk used in 

 these experiments was rather rich in nitrogen and poor in fat. With 

 more average milk, the nutritive ratio in No. 1 and No. 3 would have 

 beea bt 11 wider. 



