GROWTH AND NUTRITION 



105 



close of the trial was only 5440 grams, although the animal was 

 then excessively fat. At this time the normally fed brother, Dog 

 B, weighed 7400 grams. Aron therefore concluded that as a 

 result of underfeeding, Dog A had lost its normal capacity to 

 grow. 



a n s* m 



m n» bi aniimaarimiai 



10 W iO to Wl»l«MllO»)ao«0 1Mai»JJ»»3«l»l 



Figure 58. A short period of underfeeding, beginning at 

 birth, may prevent the attainment of the normal adult size. 

 Jackson and Stewart. By permission of the Wistar Institute. 



H U U M M 



Figure 59. The underfeeding began at weaning time, and a 

 longer period was required for the permanent suppression 

 of growth. Jackson and Stewart. By permission of the 

 Wistar Institute. 



Jackson and Stewart are also among those who believe that 

 early restriction of the food intake may result in permanant 

 dwarfing. 56 They described two series of investigations carried 



