THE FATTENING OF MATURE ANIMALS 



353 



The results of these comparative slaughter tests, so far as 

 they relate to the composition of the increase, are summarized 

 in Table 65, which includes also the computed energy content 

 of the increase. 



443. Respiration experiments. Respiration experiments on 

 mature animals have fully confirmed the results of slaughter 

 tests as regards the proportion of protein to fat in the increase, 

 as appears from the summary of Table 66. 



By far the most extensive respiration experiments are those made 

 at the Moeckern Experiment Station 1 by G. Kiihn and by Kellner 

 on mature fattening cattle. Of the 60 reported experiments in 

 which there was a gain of both protein and fat, only 3 show less 

 than 70 per cent of fat in the total organic matter gained and only 

 3, a percentage above 95. Rejecting these 6 and grouping the re- 

 mainder according to the percentage of fat gives the results shown 

 in the first five lines of the table. To these are added the results of 

 earlier experiments by Henneberg, Fleischer and Miiller 2 on sheep 

 and by Meissl 3 on swine. The gains of ash and of water were not 

 determined in these experiments. 



TABLE 66. PROPORTIONS OF PROTEIN AND FAT IN FATTENING INCREASE 



1 Landw. Vers. Stat., 44 (1894), 370; 53 (1900), i. 



2 Jahresber, Agr. Chem., lfr-17 (1876), II, 145. 8 Ztschr. Biol., 22 (1886), 63. 



2 A 



