Research Article

Fatty Acid Composition of Phospholipids and in the Central and External Positions of Triacylglycerol in Muscle and Subcutaneous Fat of Beef Steers Fed Diets Supplemented with Oil Containing n6 and n3 Fatty Acids While Undergoing One of Three 48 h Feed Withdrawal Treatments

Table 1

Saturated fatty acid composition of phospholipid (PL), triacylglycerol (TAG), and at sn-2 monoglycerol (sn2) and sn1/3 of fat from the pars costalis diaphragmatis (PCD) of beef steers fed dietary oil composed of an equal mixture of flax oil and sunflower oil at 5% of diet and in one of no feed withdrawal (No FW), single feed withdrawal (FW × 1), and feed withdrawal every 8 wk (FW × 4) for 48 h treatments.

Item LocationControlOilProbability
No FWDietFW

Fat (%)10.0900.9300.778

Fatty acid (wt %)2

14:0PL0.36460.61830.9698
TAG0.21740.44540.2914
sn20.56050.98130.8267
sn1/30.80740.49580.8013

15:0PL0.05450.18780.3771
TAG0.39420.08380.2742
sn20.47260.60980.1662
sn1/30.73590.69990.5304

16:0PL0.00010.80800.2552
TAG0.00010.10550.6427
sn20.59930.86690.3100
sn1/30.00100.43580.3523

18:0PL0.00410.65130.1631
TAG0.00010.91970.3220
sn20.23650.80980.4443
sn1/30.00010.84030.1599

20:0PL0.03070.47780.7955
TAG0.35680.20720.1070
sn20.54610.03910.9320
sn1/30.47410.06010.9036

eported in He et al. [12] fat content is on as is basis.
as in Paterson et al. [10], .