Exogenous Fatty Acids Remodel the Muscle Fatty Acids Composition of the GIFT Tilapia (Oreochromis niloticus)

Table 6

Fatty acid composition of muscle in GIFT tilapia feed diets containing different oil sources (% of total fatty acids).

Fatty acid	FO	CO	LO	AO	LA12	LA11	LA21
C14 : 0	1.693 ± 0.092^a	1.480 ± 0.108^a	1.448 ± 0.106^a	5.485 ± 0.260^e	3.846 ± 0.201^d	3.342 ± 0.161^c	2.706 ± 0.094^b
C15 : 0	0.274 ± 0.027^b	0.240 ± 0.013^ab	0.166 ± 0.006^a	0.197 ± 0.013^ab	0.180 ± 0.011^ab	0.213 ± 0.013^ab	0.274 ± 0.070^b
C16 : 0	22.677 ± 0.375^e	19.693 ± 0.618^d	16.686 ± 0.417^a	19.549 ± 0.130^d	18.637 ± 0.658^cd	17.846 ± 0.192^bc	17.533 ± 0.320^ab
C17 : 0	0.486 ± 0.026^b	0.383 ± 0.046^a	0.341 ± 0.050^a	0.313 ± 0.027^a	0.349 ± 0.034^a	0.371 ± 0.035^a	0.335 ± 0.016^a
C18 : 0	9.110 ± 0.460^b	8.163 ± 0.481^ab	7.142 ± 0.549^a	6.899 ± 0.334^a	7.282 ± 0.415^a	7.348 ± 0.416^a	7.488 ± 0.320^a
C20 : 0	0.525 ± 0.033^ab	0.574 ± 0.042^b	0.449 ± 0.040^a	0.525 ± 0.012^ab	0.470 ± 0.033^a	0.480 ± 0.023^ab	0.514 ± 0.022^ab
C24 : 0	0.226 ± 0.010	0.129 ± 0.003	—	—	—	—	—
C16 : 1	3.347 ± 0.184^bc	2.615 ± 0.199^a	2.640 ± 0.318^a	3.897 ± 0.116^c	3.332 ± 0.255^bc	3.219 ± 0.226^ab	2.948 ± 0.122^ab
C18 : 1n9t	0.322 ± 0.029^b	0.211 ± 0.033^a	0.178 ± 0.020^a	0.210 ± 0.013^a	0.197 ± 0.016^a	0.207 ± 0.013^a	0.201 ± 0.013^a
C18 : 1n9c	30.018 ± 0.638^c	28.496 ± 0.614^bc	26.553 ± 0.830^ab	27.170 ± 0.780^ab	25.930 ± 1.052^a	26.054 ± 0.654^a	25.665 ± 0.521^a
C20 : 1n9	1.489 ± 0.025^c	1.062 ± 0.072^b	0.350 ± 0.090^a	0.882 ± 0.055^b	0.526 ± 0.127^a	0.618 ± 0.098^a	0.422 ± 0.116^a
C18 : 2n6c	16.114 ± 0.424^e	24.177 ± 0.543^f	15.448 ± 0.364^e	8.676 ± 0.115^a	10.254 ± 0.218^b	11.239 ± 0.215^c	12.494 ± 0.227^d
C18 : 3n6	0.875 ± 0.022^e	1.072 ± 0.043^f	0.753 ± 0.040^d	0.228 ± 0.012^a	0.349 ± 0.020^b	0.382 ± 0.020^bc	0.442 ± 0.018^c
C20 : 4n6	4.534 ± 0.244^e	3.998 ± 0.241^d	1.757 ± 0.186^c	0.804 ± 0.063^a	1.071 ± 0.126^ab	1.184 ± 0.071^ab	1.377 ± 0.108^bc
C18 : 3n3	0.921 ± 0.032^a	1.567 ± 0.043^a	15.092 ± 0.499^e	1.516 ± 0.057^a	5.691 ± 0.338^b	7.600 ± 0.414^c	9.884 ± 0.479^d
C20 : 5n3	—	—	0.505 ± 0.034^c	0.274 ± 0.024^a	0.377 ± 0.050^b	0.394 ± 0.028^b	0.436 ± 0.023^bc
C22 : 6n3	2.320 ± 0.092^a	1.778 ± 0.117^a	5.425 ± 0.428^b	19.760 ± 0.753^f	17.210 ± 0.825^e	15.274 ± 0.561^d	12.288 ± 0.329^c
∑ SFA	34.991 ± 0.710^e	30.662 ± 0.556^c	26.231 ± 0.509^a	32.968 ± 0.281^d	30.763 ± 0.555^c	29.600 ± 0.447^bc	28.850 ± 0.596^b
∑ MUFA	35.175 ± 0.816^c	32.384 ± 0.761^b	29.721 ± 1.039^ab	32.159 ± 0.948^b	29.985 ± 1.257^ab	30.098 ± 0.765^ab	29.236 ± 0.431^a
∑ n-3 PUFAs	3.241 ± 0.081^a	3.345 ± 0.110^a	21.023 ± 0.530^b	21.551 ± 0.755^bc	23.278 ± 0.709^d	23.268 ± 0.484^d	22.609 ± 0.363^cd
∑ n-6 PUFAs	21.523 ± 0.398^f	29.247 ± 0.586^g	17.958 ± 0.439^e	9.707 ± 0.114^a	11.674 ± 0.239^b	12.805 ± 0.207^c	14.312 ± 0.150^d
n-3/n-6 PUFAs	0.151 ± 0.004^a	0.114 ± 0.003^a	1.171 ± 0.011^b	2.219 ± 0.069^f	1.993 ± 0.030^e	1.818 ± 0.034^d	1.580 ± 0.023^c

Data are expressed as mean ± SE (n = 3). Mean values with different superscript letters differ significantly (a–g, ).