. 2012 Jul;25(7):913–920. doi: 10.5713/ajas.2012.12078

Table 4.

Genotypic effects of exonic variants in FABP4 (Accession number: NM_174314.2) on fatty acid composition of intramuscular fat

SNP		c.280A>G				c.388G>A				c.408G>C				c.456A>G
Genotype	AA	AG	GG	p-value	GG	GA	AA	p-value	GG	GC	CC	p-value	AA	AG	GG	p-value
N	155	277	81	p-value	286	209	18	p-value	178	294	41	p-value	155	277	81	p-value
Carcass trait
CW (kg)	430.81±3.44	425.48±2.61	426.48±4.87	0.465	431.05±2.61	423.25±2.90	413.17±9.19	0.052	428.65±3.09	425.44±2.61	434.10±6.27	0.423	429.23±3.38	425.48±2.60	429.49±5.06	0.605
BFT (cm)	13.61±0.42^b	13.38±0.31^b	11.91±0.45^a	0.040	12.97±0.28	13.67±0.38	12.06±1.14	0.202	13.20±0.40	13.29±0.29	12.78±0.65	0.835	13.08±0.42	13.38±0.31	12.93±0.49	0.719
MS	5.43±0.15	5.32±0.12	5.78±0.21	0.181	5.66±0.11^b	5.17±0.13^ab	4.67±0.41^a	0.004	5.36±0.14	5.34±0.11	5.93±0.30	0.182	5.47±0.15	5.32±0.12	5.69±0.21	0.309
Fatty acid composition (%)
C14:0	3.67±0.05	3.66±0.04	3.52±0.06	0.193	3.63±0.04	3.64±0.04	3.80±0.16	0.572	3.64±0.05	3.65±0.04	3.47±0.09	0.226	3.67±0.05	3.66±0.04	3.50±0.07	0.130
C16:0	25.75±0.15	25.66±0.11	25.42±0.23	0.496	25.59±0.12	25.65±0.13	26.58±0.51	0.119	25.61±0.15b	25.79±0.11b	24.88±0.27a	0.020	25.75±0.15	25.66±0.12	25.42±0.23	0.478
C18:0	10.40±0.10	10.59±0.08	10.26±0.15	0.125	10.40±0.08	10.57±0.09	10.73±0.35	0.329	10.43±0.10	10.55±0.08	10.21±0.18	0.277	10.37±0.10	10.59±0.08	10.32±0.15	0.159
C14:1	1.24±0.03	1.22±0.02	1.31±0.04	0.234	1.24±0.02	1.25±0.03	1.15±0.09	0.587	1.24±0.03	1.24±0.02	1.28±0.06	0.801	1.25±0.03	1.22±0.02	1.29±0.04	0.373
C16:1	6.69±0.07	6.54±0.06	6.70±0.11	0.216	6.65±0.06	6.56±0.06	6.49±0.29	0.554	6.65±0.07	6.58±0.06	6.60±0.12	0.811	6.70±0.08	6.54±0.06	6.67±0.11	0.213
C18:1	44.16±0.20^a	44.15±0.16^a	45.08±0.30b	0.016	44.56±0.16b	44.04±0.17^ab	43.16±0.51a	0.019	44.31±0.19a	44.09±0.15a	45.71±0.38b	0.001	44.16±0.20a	44.15±0.16a	45.06±0.30b	0.020
C18:2n6	3.08±0.06^b	3.06±0.04^b	2.78±0.08a	0.009	2.94±0.05	3.13±0.05	3.02±0.22	0.053	3.06±0.06b	3.05±0.04b	2.65±0.11a	0.005	3.07±0.06b	3.06±0.04b	2.81±0.08a	0.021
C18:3n3	0.36±0.01	0.34±0.01	0.38±0.02	0.276	0.36±0.01	0.34±0.01	0.33±0.04	0.666	0.36±0.01	0.34±0.01	0.38±0.03	0.337	0.36±0.01	0.34±0.01	0.38±0.02	0.247
SFA	40.65±0.22^ab	40.75±0.17^b	40.02±0.32a	0.038	40.42±0.17	40.76±0.19	41.59±0.63	0.137	40.56±0.21b	40.77±0.16b	39.62±0.41a	0.047	40.65±0.22^ab	40.75±0.17b	40.02±0.32a	0.038
MUFA	53.49±0.22^a	53.24±0.18a	54.43±0.33b	0.006	53.84±0.17b	53.16±0.19^ab	52.21±0.65a	0.007	53.58±0.22a	53.28±0.17a	54.74±0.39b	0.012	53.51±0.23a	53.24±0.17a	54.40±0.33b	0.008
Fatty acid index
M/S³	1.33±0.01a	1.32±0.01^a	1.37±0.01^b	0.024	1.34±0.01^b	1.31±0.01^ab	1.26±0.03^a	0.030	1.33±0.01^a	1.32±0.01^a	1.39±0.02^b	0.020	1.33±0.01^a	1.32±0.01^a	1.37±0.02^b	0.026
I_C14	25.31±0.50	24.92±0.37	27.03±0.76	0.232	25.52±0.38	25.37±0.43	23.02±1.39	0.272	25.32±0.45	25.21±0.38	26.77±0.90	0.337	25.39±0.50	24.92±0.37	26.88±0.76	0.056
I_C16	20.63±0.21	20.32±0.17	20.87±0.35	0.229	20.65±0.16	20.38±0.19	19.55±0.66	0.200	20.62±0.20	20.35±0.16	21.01±0.37	0.289	20.66±0.22	20.32±0.17	20.83±0.34	0.253
I_C18	80.92±0.19^ab	80.65±0.15^a	81.45±0.25^b	0.030	81.05±0.14	80.65±0.17	80.09±0.62	0.073	80.93±0.17	80.69±0.14	81.74±0.28	0.078	80.97±0.18	80.65±0.15	81.36±0.26	0.055

Means with different superscripts in the same row within each SNP indicate statistical difference with p<0.05.

SFASaturated fatty acid, MUFA Mono unsaturated fatty acid, M/S Mono unsaturated fatty acid/Saturated fatty acid, I_C14 (C14:1/(C14:0 +C14:1))×100, I_C16(C16:1/(C16:0+C16:1))×100, I_C18 (C18:1/(C18:0+C18:1))×100, CW carcass weight, BFT backfat thickness, MS marbling score from 1 to 9 indicating that a larger score means more abundant intramuscular fat.