Effects of Salinity on Muscle Nutrition, Fatty Acid Composition, and Substance Anabolic Metabolism of Blue Tilapia Oreochromis aureus

Table 4

Fatty acids composition in muscle of Oreochromis aureus after 60 days of culture under different salinities (%).

Fatty acid	0	3	5	7	9	11
C14 : 0	1.87 ± 0.05^b	2.03 ± 0.12^a	1.93 ± 0.05^ab	2.±0.08^ab	2.07 ± 0.05^a	2.07 ± 0.05^a
C15 : 0	0.27 ± 0.01	0.28 ± 0.04	0.28 ± 0.03	0.27 ± 0.02	0.25 ± 0.02	0.26 ± 0.01
C16 : 0	21.07 ± 0.40	21.13 ± 0.5	20.53 ± 0.40	20.87 ± 0.26	21.3 ± 0.29	20.67 ± 0.17
C17 : 0	0.46 ± 0.04^b	0.39 ± 0.05^ab	0.42 ± 0.07^ab	0.39 ± 0.02^ab	0.357 ± 0.03^a	0.36±0^a
C18 : 0	5.4 ± 0.29	5.47 ± 0.12	5.3 ± 0.14	5.27 ± 0.21	5.3 ± 0.08	5.23 ± 0.05
C20 : 0	0.16 ± 0.01^b	0.2 ± 0.01^a	0.23 ± 0.01^c	0.21 ± 0.01^a	0.20 ± 0.01^a	0.21 ± 0.01^a
C24 : 0	0.11 ± 0.01	0.1 ± 0.01	0.12 ± 0.01	0.11 ± 0.01	0.11 ± 0.02	0.11 ± 0.01
C14 : 1	0.1 ± 0.01	0.12 ± 0.02	0.11 ± 0.01	0.11 ± 0.01	0.11 ± 0.01	0.11 ± 0.01
C16 : 1	4.67 ± 0.4	4.67 ± 0.54	4.23 ± 0.25	4.33 ± 0.12	4.57 ± 0.25	4.43 ± 0.12
C17 : 1	0.33 ± 0.01^ab	0.39 ± 0.06^b	0.37 ± 0.02^b	0.31 ± 0.01^a	0.3 ± 0.02^a	0.37 ± 0.02^b
C18 : 1	34.63 ± 0.58	34.4 ± 0.37	34.23 ± 1.05	33.93 ± 0.34	34.1 ± 0.83	32.43 ± 2.47
C20 : 1	1.53 ± 0.12	1.63 ± 0.09	1.5 ± 0.08	1.6 ± 0.00	1.53 ± 0.05	1.57 ± 0.12
C22 : 1	0.09 ± 0.02^d	0.1 ± 0.01^abcd	0.11 ± 0.01^abc	0.12 ± 0.01^ac	0.12 ± 0.01^c	0.09 ± 0.01^bd
C18 : 2	16.33 ± 1.68	16.73 ± 0.77	17.73 ± 0.45	17.87 ± 0.59	17.1 ± 0.85	17.93 ± 0.62
C18 : 3	3 ± 0.16^b	2.73 ± 0.12^a	2.77 ± 0.12^ab	2.8 ± 0.08^ab	2.77 ± 0.05^ab	2.73 ± 0.12^a
C18 : 4	0.31 ± 0.01	0.3 ± 0.01	0.40 ± 0.11	0.3 ± 0.01	0.32 ± 0.02	0.34 ± 0.05
C22 : 2	0.69 ± 0.07	0.67 ± 0.05	0.74 ± 0.06	0.72 ± 0.03	0.69 ± 0.07	0.73 ± 0.01
C22 : 3	1.13 ± 0.05	1.1 ± 0.00	1.2 ± 0.08	1.17 ± 0.05	1.17 ± 0.09	1.2 ± 0.00
C20 : 4n-6 ARA	1.3 ± 0.08	1.17 ± 0.05	1.33 ± 0.09	1.27 ± 0.05	1.27 ± 0.12	1.23 ± 0.05
C20 : 5n-3 EPA	0.11 ± 0.04	0.15 ± 0.05	0.24 ± 0.06	0.14 ± 0.01	0.14 ± 0.04	0.19 ± 0.03
C22 : 4	0.91 ± 0.02	0.82 ± 0.06	0.87 ± 0.04	0.89 ± 0.03	0.88 ± 0.06	0.85 ± 0.02
C22 : 5n-3 DPA	1.7 ± 0.08	1.57 ± 0.05	1.77 ± 0.19	1.63 ± 0.05	1.63 ± 0.17	1.57 ± 0.09
C22 : 6n-3 DHA	1.4 ± 0.29	1.17 ± 0.05	1.57 ± 0.26	1.3 ± 0.08	1.3 ± 0.14	1.27 ± 0.05
EFA	19.33 ± 1.82	19.47 ± 0.9	20.5 ± 0.57	20.67 ± 0.66	19.87 ± 0.87	20.67 ± 0.69
NEFA	78.24 ± 1.74	77.87 ± 0.71	77.49 ± 1.67	76.94 ± 0.77	77.69 ± 0.69	75.29 ± 2.90
TFA	97.57 ± 0.14	97.34 ± 0.36	97.99 ± 1.10	97.61 ± 0.16	97.56 ± 0.19	95.95 ± 2.26
SFA	29.33 ± 0.69	29.61 ± 0.58	28.81 ± 0.52	29.12 ± 0.49	29.57 ± 0.34	28.91 ± 0.23
MUFA	41.35 ± 0.78	41.31 ± 0.15	40.56 ± 1.34	40.40 ± 0.43	40.73 ± 0.93	39.01 ± 2.5
PUFA	26.89 ± 1.5	26.41 ± 0.89	28.62 ± 0.97	28.09 ± 0.62	27.2 ± 1.41	28.04 ± 0.62
EPA + DHA	1.51 ± 0.33^ab	1.32 ± 0.09^a	1.81 ± 0.32^b	1.44 ± 0.09^ab	1.44 ± 0.18^ab	1.45 ± 0.08^ab

Note. 0 : 0 ppt salinity; 3 : 3 ppt salinity; 5 : 5 ppt salinity; 7 : 7 ppt salinity; 9 : 9 ppt salinity; 11 : 11 ppt salinity; ARA: arachidonic acid;EPA: eicosapentaenoic acid; DPA: docosapentenoic acid; DHA: docosahexenoic acid; EFA: essential fatty acids; NEFA: nonessential fatty acids; TFA: total fatty acids; SFA: saturated fatty acids; MUFA: monounsaturated fatty acids; PUFA: polyunsaturated fatty acids; different letters on the same line indicate significant differences ().