352 



NUTRITION OF FARM ANIMALS 



weights of the offal parts were recorded, so that it is possible 

 to compute approximately the weight of the fat-free body, 

 exclusive of the contents of the digestive tract and of the wool. 

 Similar comparisons based on 75 and 82 day fattening periods 

 with swine were reported by Soxhlet l in 1881 and the results 

 of short fattening experiments (16 to 37 days) on geese by B. 

 Schulze 2 in 1882 and by Chaniewski 3 in 1884, the primary 

 object of each case being a study of the sources of animal fat. 

 Friske 4 in 1909 and Pfeiffer and Friske 5 in 1911, in a study of the 

 gain of protein by mature animals during a fattening period of 

 about 100 days, likewise reported a number of partial analyses 

 of mature sheep similar to those made by Henneberg, Kern 

 and Wattenberg. 



TABLE 65. COMPOSITION OF INCREASE IN LIVE WEIGHT IN FATTENING 



1 Centbl. Agr. Chem., 10 (i$8i), 674. 3 Ztschr. Biol., 20 (1884), 179. 



2 Landw. Jahrb., 11 (1882), 57. 4 Landw. Vers. Stat., 71 (1009), 441. 



6 Ibid., 74 (1911), 409. 



