244 SCIENTIFIC FEEDING OF ANIMALS 



The temperature of the stall, which, as has pre- 

 viously been seen (p. 52), also has an influence upon 

 the consumption of nutrients in an animal on a low 

 diet, because of the heat given off from the body, 

 was kept fairly high in these investigations 

 (54-68 F.). It must also be remembered that at 

 the time of these experiments some forty years 

 ago the varieties of cereals which were grown 

 gave a more digestible straw than those cultivated 

 at the present time. 



On the above rations a slight increase of tissue 

 took place, which sufficed for the growth of hoofs 

 and horns and for the renewal of the hairy covering. 

 Whether an increase in body fat also took place 

 was not proved, but in any case the body weight 

 of the experimental animals underwent no change 

 for a long time. 



More exact investigations which were later 

 carried out with the help of the respiration chamber 

 gave the following results per day and per 1000 kg. 

 (i kg. =2*2 Ibs.) live weight. 



INSUFFICIENT FOOD. 

 Digestible nutrients. Addition (+) 



Average 035 0-13 6-37 4-28 - 65 +3 



