Composition of intramuscular phospholipid fatty acids of Inra rabbit at different ages

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SHAN XUE
ZHIFEI HE
XIAOQI TAO
JINGZHI LU
XIA XIAO
YUEJIE XIE
LI ZHENG
HONGJUN LI

Keywords

Inra rabbit, fatty acids, intramuscular phospholipids, composition

Abstract

The composition of intramuscular phospholipids fatty acids in Longissimus dorsimuscle (LD), left-hind leg muscle (LL) and abdominal muscle (AM) of Inra rabbit slaughtered between 35 to 90 days old were investigated. Significant decreasing of intramuscular phospholipids (%lipid) was observed in three muscles as age increased (p < 0.05). Abundant amount of unsaturated fatty acids (UFA), especially polyunsaturated fatty acids (PUFA) characterised the fatty acid composition of the phospholipids. Palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C18:1n-9), linoleic acid (C18:2n-6) and arachidonic acid (C20:4) were the major fatty acids. By analysis of partial least square regression (PLSR), the nutritional value of the phospholipid fatty acids decreased with age.

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