Fatty acid composition of porcine muscle and adipose tissue lipids as affected by anatomical location and cod liver oil supplementation of the diet.
In pigs fed a standard pig mash the contents of polyunsaturated fatty acids (PUFAs) of both the n-6 and n-3 series were significantly higher in the dark red mm adductores compared to the light coloured m longissimus lumborum. Perirenal fat had a higher concentration of saturated fatty acids (14:0, 16:0, 18:0) than backfat, and a lower concentration of monounsaturated fatty acids, such as 16:1n-7 and 18:1n-9. Daily supplementation of 50 ml cod liver oil, rich in n-3 PUFAs, during the fourth and third week before slaughter led to a 1.4 to 1.7 times increase in the contents of n-3 PUFAs in muscles and fat depots. There was no difference between the incorporation of n-3 PUFAs in dark and light muscles. Perirenal fat contained more 20:5n-3 (EPA) and 22:6n-3 (DHA), but less 20:1n-9 (eicosenoic acid) than the backfat, after cod liver oil supplementation rich in these 3 fatty acids. Supplementation of cod liver oil reduced the n-6/n-3 fatty acid ratio in all anatomical locations examined.
Taugbøl
O
O
Department of Biochemistry, Physiology and Nutrition, Norwegian College of Veterinary Medicine, Oslo.
Saarem
K
K
D000273:Adipose Tissue / Q000737:chemistry*; D000704:Analysis of Variance; D000821:Animal Feed; D000818:Animals; D001824:Body Constitution; D003060:Cod Liver Oil / Q000494:pharmacology*; D005231:Fatty Acids, Unsaturated / Q000032:analysis* / Q000145:classification; D005260:Female; D008297:Male; D018482:Muscle, Skeletal / Q000737:chemistry*; D013552:Swine
D005231:Fatty Acids, Unsaturated; D003060:Cod Liver Oil