The Effect of Supplementing Calcium Soap of Fatty Acids Prepared from Linseed Oil on n-3 Fatty Acid Contents in the Lipids from Blood, Organs and Muscle of Finishing Pigs

Eight finishing pigs (weight, 74.4-88.6kg) were divided into two groups and each of them was fed formula feed as a control diet or formula feed containing approximately 2.9% calcium soap of linseed oil as an experimental diet during the last 28 days before slaughtering to investigate α-linolenic acid (C18:3n-3) level and some other n-3 fatty acid levels in lipids from the blood serum, organs and muscle of the pig. Daily gain and feed conversion of the pigs fed the experimental diet were 0.85kg/d and 3.78, 0.89kg/d and 3.67 for the control pigs and there were no significant differences on feed intake, carcass weight, liver and kidney weights, and muscle color of the loin between the pigs fed the experimental diet and the control pigs. On the final day of the experiment, C18:3n-3 level in the lipids from blood serum of the pigs fed the experimental diet was 8.3%, 0.5% for the control (P