MAlsrUAL OF OATTLE-FEEDI^TG. 



455 



These figures are interesting as sliowing tlie large gain 

 of flesh made by the young anini*il>, while, as we have 

 seen, mature animals, even when higlily fed, gain chiefly 

 fat. 



Fattening. — Wolff's Experiments. — In the experi- 

 ments by Wolff, partially described on page 448, two o£ 

 the lambs received, in addition to the hay, oats, and oil 

 cake, and at the close of the experiment were found to 

 be well fattened. The following table shows the total 

 amount of fodder (water-free) eaten, the amount of digesti- 

 ble nutrients, and the gain in weight, per day and head, for 

 the several periods : 



Period. 



Age. 

 Months. 



Average 



hve- 

 we ght. 



Total 



fodder. 



Lbs. 



Digested. 



Protein. 

 Lb. 



Fat. 

 Lb. 



Carbhy- 



drate-?. 



Lb. 



Kutr, 



Batio. 



1: 



Gam 



perdi;y, 

 Lbfi. 



1 



5-6 



8 



8-9 



9-13 



12~U 



59.7 

 70.7 

 78.9 

 84.8 

 95.8 



1.99 

 3.03 

 1.91 



1.83 

 1.76 



0.31 

 0.34 

 0.31 

 0.19 

 0.19 



0.08 

 0.08 

 0.10 

 06 

 08 



97 

 1.03 

 0.93 

 0.91 

 0.89 



5.6 

 5 1 

 5.6 

 5.6 



5.7 



2 



3 



4 



5 





0.36 

 0.34 

 0.07 

 0.13 

 0.19 



In the last three periods the consumption of fodder fell 

 off considerably, especially if we take into accoimt the in- 

 creased weight of the animals. The average consumption 

 of digestible protein per day and head was 0.21 pound, 

 and the nutritive ratio did not vary greatly from 1 : 5.6. 



We shall not, therefore, err greatly if we say that a 

 ration containing, per day and head, about 0.20 pound of 

 digestible protein, and having a nutritive ratio of about 

 1:5.6, and fed constantly from the age of six months on, 



