MANUAL OF CATTLE-FEEDING. 



X. i %/ 



ning of the experiment, and tlxe amount of the various 

 components of their bodies (flesh, fat, bones, tendons, etc.) 

 determined as accurately as possible, while two similar 

 sheep were examined in the same way after having been 

 fattened for several months. 



The experimenters themselves did not consider the ques- 

 tion of the origin of the fat, but E. v. "Wolff ^ has shown 

 from their results that a portion of it must have been 

 formed from carbhydrates. 



The carcases of the unfattened and fattened animals 

 had the following composition : 



Unfattened. 

 Fattened. . 



Difference.. 



Dry and fat- 

 free flesh. 

 Grms. 



Dry fat. 

 Grms. 



Fresh bones. 

 Grms. 



2,465 

 2,485 



5,406 

 15,077 



2,530 

 2,566 



+20 



4-9,671 



4-36 



Fresh 



tendons. 



(Jrms 



2,488 

 1,818 



■670 



The resvilt of tlie fattening was almost wlxolly a gain of 

 fat. 



The gain of 9,671 grms. of fat does not include the fat 

 of the wool nor the small quantities contained in skin, 

 head, legs, etc., etc., which would probably have amounted 

 to 200 grms, more. This, however, we will leave out of 

 the account. 



Daring the time of the experiment the animals digested 

 about 9,490 grms. of protein and 2,554 grms. of crude fat 

 (ether extract). Assuming that the digested ether extract 

 produced an equal amount of fat, which is hardly proba- 



*Xandw. Jahrlb., VIII., I. Supplement, p. 209. 



