A Comparative Study on the Quality of Large Yellow Croaker (Larimichthys crocea) of Different Sizes Cultured in Different Cage Systems

Table 4

Fatty acid composition of flesh from Larimichthys crocea cultured in DWC or CC systems (%).

	DWC-L	DWC-M	DWC-S	CC-L	CC-M	CC-S
C14:0	3.50 ± 0.06^a	3.37 ± 0.05^a	3.61 ± 0.27^a	3.43 ± 0.02^a	4.29 ± 0.21^b	4.28 ± 0.11^b
C15:0	0.66 ± 0.00^a	0.63 ± 0.01^a	0.68 ± 0.05^a	0.52 ± 0.00^b	0.79 ± 0.04^c	0.79 ± 0.02^c
C16:0	36.90 ± 0.22^ab	36.54 ± 0.58^ab	34.31 ± 3.88^a	38.79 ± 0.13^bc	41.76 ± 2.04^c	37.32 ± 1.04^ab
C17:0	0.98 ± 0.03^a	0.95 ± 0.02^a	1.02 ± 0.08^ac	0.81 ± 0.01^b	1.08 ± 0.05^cd	1.14 ± 0.03^d
C18:0	6.15 ± 0.04^a	7.23 ± 0.11^a	7.52 ± 0.60^a	4.96 ± 2.36^a	3.70 ± 2.64^a	5.10 ± 2.76^a
C20:0	0.09 ± 0.00^a	0.09 ± 0.00^a	0.09 ± 0.01^a	0.10 ± 0.00^a	0.12 ± 0.01^b	0.12 ± 0.01^b
C21:0	0.32 ± 0.00^ab	0.30 ± 0.00^ab	0.26 ± 0.07^b	0.39 ± 0.00^ab	0.41 ± 0.02^a	0.35 ± 0.12^ab
C22:0	0.20 ± 0.00^a	0.19 ± 0.00^a	0.20 ± 0.01^a	0.19 ± 0.00^a	0.19 ± 0.01^a	0.20 ± 0.01^a
∑SFA	48.79 ± 0.25^a	49.30 ± 0.78^a	47.68 ± 2.82^a	49.18 ± 2.21^a	52.36 ± 4.73^a	49.31 ± 3.26^a
C16:1	0.68 ± 0.00^a	0.59 ± 0.01^ab	0.52 ± 0.06^ab	0.43 ± 0.11^b	0.68 ± 0.04^a	0.53 ± 0.20^ab
C17:1	0.92 ± 0.02^a	0.86 ± 0.01^a	0.86 ± 0.07^a	0.85 ± 0.00^a	0.94 ± 0.05^a	0.86 ± 0.05^a
C18:1	32.14 ± 0.20^a	26.92 ± 1.58^b	31.88 ± 1.67^ab	35.40 ± 1.86^a	30.26 ± 2.83^ab	30.75 ± 3.37^ab
C22:1	0.15 ± 0.01^ab	0.13 ± 0.03^a	0.15 ± 0.01^ab	0.18 ± 0.02^b	0.19 ± 0.01^b	0.17 ± 0.03^ab
C24:1	0.22 ± 0.02^a	0.17 ± 0.01^ab	0.16 ± 0.04^b	0.13 ± 0.01^b	0.14 ± 0.01^b	0.14 ± 0.04^b
∑MUFA	34.11 ± 0.19^a	28.67 ± 1.59^b	33.57 ± 1.71^ab	36.99 ± 1.93^a	32.21 ± 2.76^ab	32.45 ± 3.15^ab
C18:2n6	2.79 ± 0.02^a	6.30 ± 1.93^b	2.35 ± 0.35^a	2.89 ± 0.02^a	2.82 ± 0.13^a	2.31 ± 0.50^a
C18:3n3	2.24 ± 0.01^a	1.60 ± 0.23^b	1.57 ± 0.24^b	2.04 ± 0.01^a	2.60 ± 0.12^c	2.78 ± 0.08^c
C20:2n6	0.03 ± 0.01^ab	0.03 ± 0.00^ab	0.02 ± 0.01^a	0.05 ± 0.00^bc	0.09 ± 0.01^d	0.07 ± 0.03^cd
C20:3n6	1.89 ± 0.01^a	2.03 ± 0.04^ab	2.13 ± 0.16^b	1.68 ± 0.01^c	1.88 ± 0.09^a	1.86 ± 0.07^a
C20:3n3	0.28 ± 0.10^a	0.27 ± 0.02^a	0.44 ± 0.28^ab	0.28 ± 0.10^a	0.73 ± 0.20^b	0.35 ± 0.18^ab
C20:4n6	0.54 ± 0.02^abd	0.32 ± 0.03^abc	0.15 ± 0.11^c	0.20 ± 0.04^ac	0.59 ± 0.11^bd	0.85 ± 0.33^d
C20:5n3	0.91 ± 0.01^a	0.88 ± 0.26^a	0.40 ± 0.18^b	0.47 ± 0.18^b	0.76 ± 0.11^ab	0.72 ± 0.16^ab
C22:6n3	8.42 ± 0.40^ab	10.61 ± 0.36^bc	11.68 ± 0.77^c	6.22 ± 0.07^a	5.97 ± 2.71^a	9.29 ± 0.46^bc
∑PUFA	18.62 ± 0.45^a	25.36 ± 2.04^b	23.01 ± 1.59^b	15.16 ± 2.30^a	14.31 ± 2.13^a	18.20 ± 2.57^a
∑PUFA (n-3)	11.86 ± 0.46^ab	13.37 ± 0.41^b	14.09 ± 0.68^b	9.01 ± 0.26^c	10.06 ± 2.81^ac	13.14 ± 0.67^b
∑PUFA (n-6)	5.24 ± 0.04^a	8.67 ± 1.88^b	4.65 ± 0.45^a	4.82 ± 0.06^a	5.38 ± 0.27^a	5.10 ± 0.65^a
(n-3)/(n-6)	2.26 ± 0.10^b	1.61 ± 0.31^a	3.04 ± 0.15^c	1.87 ± 0.05^a	1.90 ± 0.63^ab	2.63 ± 0.42^bc

Note: All data were expressed as means ± standard deviations. Mean values within the same column with different superscripts are significantly different (). SFA, saturated fatty acid; MUFA, mono-unsaturated fatty acid; PUFA, polyunsaturated fatty acid.