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Fatty Acid Composition of Porcine Muscle and Adipose Tissue Lipids as Affected by Anatomical Location and Cod Liver Oil Supplementation of the Diet

Acta Veterinaria Scandinavica volume 36, pages 93–101 (1995)Cite this article

Abstract

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:ln-7 and 18:ln-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:ln-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.

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Acknowledgments

We wish to thank Harald Falck Løken, Dal Forsøksgård, for taking care of the pigs, Kari Feigen-winter, Department of Biochemistry, Physiology and Nutrition, and lab. ing. Asbjørg Flo, Peter Möller avd. av ORKLA A.S., for their help with preparations for and GC-analyses of the fatty acids in the tissue samples. We also wish to thank Prof. Nina Køpke Vøllestad, Jorid Thrane Stuenæs and Bjørg Ingrid Selberg, National Institute of Occupational Health, Oslo, for their professional assistance with the muscle fibre typing. We are very grateful to Prof. Arnfinn Aulie, Department of Biochemistry, Physiology and Nutrition, for his help and cooperation.

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  1. Department of Biochemistry, Physiology and Nutrition, Norwegian College of Veterinary Medicine, P.O. Box 8146 Dep, N-0033, Oslo, Norway

    O. Taugbøl

  2. Peter Möller avd. av ORKLS A.S., Oslo, Norway

    K. Saarem

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  1. O. Taugbøl
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  2. K. Saarem
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Taugbøl, O., Saarem, K. Fatty Acid Composition of Porcine Muscle and Adipose Tissue Lipids as Affected by Anatomical Location and Cod Liver Oil Supplementation of the Diet. Acta Vet Scand 36, 93–101 (1995). https://doi.org/10.1186/BF03547706

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Acta Veterinaria Scandinavica

ISSN: 1751-0147