FISHERY BULLETIN: VOL. 69, NO. 2 



Table 8. — Inner backfat tissue: concentration of fatty acids found in backfat tissue and correlation to quantity 



of various fatty acids fed for various time intervals. 



P <.05 



P <.01 



in the patterns of incorporation of these fatty 

 acids (quadratic to linear). 



No statistical relation was found for the re- 

 maining three fatty acids (18:3 w3, 18:4 c<j3, 

 and 20:4 w3). 



Results of statistical analyses of the data ob- 

 tained with the inner backfat tissue and the 

 outer backfat tissue, however, indicate that all 

 six of the fatty acids of the 0)3 family are de- 

 posited in the tissue in i^roportion to the quantity 

 consumed by the pigs. When menhaden oil was 

 fed to the pigs until they attained a body weight 

 of 90.9 kg, a highly significant positive correla- 

 tion was obtained for all six wS fatty acids. 



Removing the oil from the diet of the pigs when 

 they weighed 79.5 kg changed the pattern slight- 

 ly with respect to the outer backfat tissue. The 

 quantity of 18:4 a)3 fed was no longer correlated 

 with the amount deposited. Removal of the oil 

 when the pigs weighed (58.0 kg resulted in 

 only three of the qj3 fatty acids (20:5 ojS, 

 22:5 w3, and 22:6 0)3) being correlated. 



Similarly with respect to inner backfat tis- 

 sue, removal of the menhaden oil when the jiigs 

 weighed either 68.0 or 79.5 kg resulted in the 

 (juantity of certain of the oj3 fatty acids fed no 

 longer being correlated with the quantity de- 

 posited. Polynomial regression analyses of 



290 



