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Biologia

, Volume 74, Issue 1, pp 97–101 | Cite as

Fatty acid composition in maternal and foetal muscle tissues of beaver (Castor fiber)

  • Violeta RazmaitėEmail author
  • Vidmantas Pileckas
Original Article
  • 30 Downloads

Abstract

The aim of the present work was to examine and compare the fatty acid composition of muscle tissues from eleven pregnant beaver (Castor fiber) females and their foetuses. The females were culled during warrantable early spring beaver hunting period (from the beginning of March until the middle of April). The fat content of the muscles of beaver female was 2.0 times higher (P < 0.001) than that of the muscles of their foetuses before birth. A total number of 33 and 34 fatty acids of various chain lengths and saturation levels, including 5 trans isomers, were identified, respectively, in the intramuscular fat (IMF) of muscle tissues from beaver females and their foetuses. Considerable differences in the proportions of individual fatty acids showed that foetuses during beaver gestation accumulate 1.4 times more total saturated (SFA) and 2.6 times more monounsaturated (MUFA) but 2.7 times less polyunsaturated (PUFA) fatty acids than pregnant females (P < 0.001). Although PUFA/SFA ratio in the tissues of foetuses was by 3.8 times lower (P < 0.001) than in the muscle tissue of females, the differences in n-6/n-3PUFA ratio were not significant (P = 0.133).

Keywords

Fatty acids Muscle Foetus Gestation Beaver 

Abbreviations

IMF

Intramuscular fat

SFA

Sum of all saturated fatty acids

MUFA

Sum of all monounsaturated fatty acids

PUFA

Sum of all polyunsaturated fatty acids

PUFA/SFA

Ratio of all polyunsaturated to all saturated fatty acids

n-6/n-3PUFA

Ratio of n-6 to n-3 polyunsaturated fatty acids

TFA

Sum of all trans fatty acids

LCPUFA

Long-chain polyunsaturated fatty acids

EPA

Eicosapentaenoic fatty acid

DPA

Docosahexaenoic fatty acid

FAMEs

Fatty acid methyl esters

AOAC

Association of Official Analytical Chemists

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Copyright information

© Institute of Molecular Biology, Slovak Academy of Sciences 2018

Authors and Affiliations

  1. 1.Animal Science InstituteLithuanian University of Health SciencesRadviliškis district.Lithuania

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