566 



VI. OCCURRENCE OF LIPIDS IN THE ANIMAL 



muscles, 10.3, 0.93; brain and nerves, 0.67, 0.33; "Fett," 12.8, 12.8; all 

 other tissues, 4.9, 1.4; and total, 41.3, 19.3. 



The body composition of a normal and of a fat man, and the composition 



NORMAL 

 REF. 



14% 



"OBESITY 

 TISSUE" 



627. 



PURE FAT 



"CELL SOLIDS" 

 BONE MINERAL 



NORMAL 

 YOUNG "OBESITY 

 MAN TISSUE" 



6Z% 



FAT MAN 

 45 YRS. 



D « 1.063 D *0. 



Fig. 1. Body composition of a normal and of a fat man and of "obesity" tissue, as cal- 

 culated by densitometric analysis (left) and by water analysis (right). 166 



Table 8 



The Average Composition of Eviscerated Male and Female Rats 15 Weeks of 



Age That Had Previously Received a Mineralized Skimmed Milk Diet 



Containing Several Fats for 12 Weeks Following Weaning" 



M.D.: 



S.E.M.D. 



of 



(1) vs. 

 Category Male rats (1) Female rats (2) (S\b 



Number of rats 51 51 — ■ 



Body weight, total g 254.8 171.2 



" " , after evisceration, g 237.0 158.3 



Composition : c 



Water, % 58.2 ± 0.4 56.8 ± 0.4 2.45 



Protein, % 17.3 ± 0.2 16.4 ± 0.2 3.10 



Lipid, % 18.1 ± 0.5 20.1 ±0.6 2.70 



Carbohydrate (by difference), % 3.38 ± 0.37 3.53 ±0.12 0.40 



Ash, % 2.95 ± 0.03 3.26 ± 0.04 6.20 



Ca, mg. % 911 ± 11 1028 ± 16 6.03 



° H. J. Deuel, Jr., L. F. Hallman, E. Movitt, F. H. Mattson, and E. Wu, /. Nutrition, 

 27, 335-338 (1944). 



5 Ratio of Mean Difference to Standard Error of the Mean Difference. A figure 

 greater than 3.0 is considered highly significant. 



6 Including Standard Error of the Mean. 



