Alteration of Growth Performance, Antioxidant Capacity, Tissue Fatty Acid Profiles, and Lipid Metabolism of Mud Crab (Scylla paramamosain) Juvenile in Response to Different Dietary Arachidonic Acid Levels

Table 6

Hepatopancreas fatty acid composition of juvenile mud crab Scylla paramamosain fed with different dietary ARA levels (mg g^-1 dry matter).

Fatty acids	Dietary ARA levels (g kg^-1)						ANOVA	Linear		Quadratic
	0.40	2.50	4.60	8.90	12.50	15.70	value	value		value
14 : 0	^a	^ab	^b	^b	^b	^c	0.000	0.000	0.740	0.000	0.728
16 : 0	^a	^b	^c	^d	^e	^e	0.000	0.000	0.954	0.000	0.971
18 : 0	^a	^a	^b	^c	^d	^e	0.000	0.000	0.969	0.000	0.971
	^a	^b	^c	^d	^e	^f	0.000	0.000	0.984	0.000	0.984
16:1n-7	^a	^ab	^bc	^cd	^d	^e	0.000	0.000	0.848	0.000	0.838
18:1n-9	^a	^a	^a	^b	^c	^d	0.000	0.000	0.879	0.000	0.977
	^a	^b	^b	^c	^d	^e	0.000	0.000	0.902	0.000	0.974
18:2n-6	^a	^b	^bc	^c	^d	^e	0.000	0.000	0.890	0.000	0.884
20:4n-6	^a	^b	^c	^d	^e	^f	0.000	0.000	0.982	0.000	0.997
	^a	^b	^c	^d	^e	^f	0.000	0.000	0.982	0.000	0.994
18:3n-3	^a	^b	^bc	^cd	^d	^e	0.000	0.000	0.898	0.000	0.894
20:5n-3	^a	^b	^c	^d	^e	^f	0.000	0.000	0.986	0.000	0.985
22:5n-3	^a	^b	^bc	^c	^a	^d	0.000	0.006	0.351	0.023	0.316
22:6n-3	^a	^b	^c	^d	^e	^f	0.000	0.000	0.992	0.000	0.992
	^a	^b	^c	^d	^e	^f	0.000	0.000	0.991	0.000	0.991
	^a	^b	^c	^d	^e	^f	0.000	0.000	0.992	0.000	0.993
ARA/EPA^f	^a	^b	^c	^d	^e	^f	0.000	0.000	0.975	0.000	0.978
ARA/DHA ^g	^a	^a	^b	^c	^d	^e	0.000	0.000	0.952	0.000	0.969

Data are presented as (). Values in the same row with different superscripts are significantly different (). Some fatty acids, of which the contents are minor, trace amount or not detected, such as 12 : 0, 20 : 0, 22 : 0, 24 : 0, 22:1n-9, 22:1n-11, 20:2n-6, 20:3n-6, 22:4n-6, 20:5n-6, and 20:3n-3, were not listed in this table. ^aSFA: saturated fatty acids; ^bMUFA: monounsaturated fatty acids; ^cn-6 PUFA: n-6 polyunsaturated fatty acids; ^dn-3 PUFA: n-3 polyunsaturated fatty acids; ^en-3 LC-PUFA: n-3 long chain poly-unsaturated fatty acid; ^fARA/EPA, the ratio of ARA to EPA; and ^gARA/DHA, the ratio of ARA to DHA.