Table 4.

Effects of age and sex on foetal neutral fatty-acid composition of longissimus dorsi muscle. Mean values for neutral lipids in the longissimus dorsi muscle at Gestational Day (GD) 70 and 90 in female (F) and male (M) foetuses.

	70		90		MSE a	p-Value
						Same Age F vs. M		Same Sex 70 vs. 90		Age × Sex
Fatty Acids (g/100 g Total Fatty Acids)	F	M	F	M		70	90	F	M
C14:0	3.59	3.42	3.75	3.74	0.064	0.383	0.632	0.506	0.036	0.181
C16:0	28.97	26.79	29.33	29.25	0.375	0.069	0.549	0.809	0.001	0.021
C16:1n-9	4.22	4.35	3.46	3.38	0.102	0.625	0.46	0.018	<0.001	<0.001
C16:1n-7	3.78	4.3	7.33	7.28	0.251	0.198	0.563	<0.001	<0.001	<0.001
C17:0	0.35	0.45	0.27	0.28	0.031	0.245	0.73	0.333	0.072	0.107
C17:1	2.96	2.82	1.68	1.77	0.089	0.364	0.177	<0.001	<0.001	<0.001
C18:0	13.55	13	12.21	11.55	0.218	0.351	0.375	0.035	0.012	0.006
C18:1n-9	21.51	21.87	22.09	22.55	0.222	0.583	0.585	0.507	0.168	0.453
C18:1n-7	6.36	6.86	7.34	7.17	0.088	0.029	0.234	0.001	0.109	0.001
C18:2n-6	3.34	3.19	3.64	3.96	0.079	0.363	0.163	0.151	<0.001	0.001
C18:3n-3	0.26	0.17	0.11	0.15	0.015	0.016	0.386	0.004	0.478	0.003
C20:3n-9	0.57	0.63	0.56	0.54	0.010	0.063	0.147	0.757	<0.001	0.003
C20:3n-6	0.24	0.26	0.43	0.47	0.016	0.569	0.098	<0.001	<0.001	<0.001
C20:4n-6	5.23	6.49	4.09	4.19	0.317	0.19	0.499	0.223	0.007	0.012
C20:5n-3	0.29	0.28	0.2	0.19	0.008	0.718	0.605	<0.001	<0.001	<0.001
C22:1n-9	0.32	0.3	0.21	0.2	0.015	0.731	0.796	0.024	0.01	0.007
C22:4n-6	1.44	1.68	1.05	1.11	0.078	0.297	0.219	0.125	0.003	0.006
C22:5n-6	0.91	1.11	0.89	0.91	0.037	0.079	0.567	0.884	0.022	0.067
C22:5n-3	0.37	0.35	0.3	0.3	0.017	0.701	0.621	0.171	0.276	0.373
C22:6n-3	1.46	1.67	1.06	1.03	0.221	0.366	0.862	0.227	0.001	0.147
SFA 1	46.45	43.66	45.55	44.81	0.407	0.029	0.345	0.566	0.166	0.063
MUFA 2	39.14	40.51	42.12	42.35	0.394	0.231	0.842	0.027	0.054	0.016
PUFA 3	15.01	15.83	12.34	12.84	0.492	0.568	0.307	0.085	0.021	0.027
UI 4	0.98	1.01	0.87	0.88	0.021	0.546	0.37	0.123	0.008	0.021
PUFAn-3 5	3.27	2.48	1.67	1.67	0.232	0.3	0.686	0.143	0.001	0.057
PUFAn-6 6	2.59	3.05	2.37	2.49	0.108	0.173	0.249	0.558	0.037	0.084
∑n-6/∑n-3	0.98	1.24	1.45	1.54	0.044	0.006	0.517	0.003	<0.001	<0.001
C18:1/C18:0	2.08	2.24	2.43	2.62	0.05	0.158	0.388	0.009	0.009	0.001
MUFA/SFA	0.85	0.93	0.93	0.95	0.013	0.046	0.618	0.135	0.488	0.052

^a MSE = Mean square error. ¹ SFA = Saturated fatty acids; Includes: C14:0, C16:0, C17:0 and C18:0. ² MUFA = Monounsaturated fatty acids; Includes: C16:1n-9, C16:1n-7, C17:1, C18:1n-9, C18:1n-7 and C22:1n-9. ³ PUFA = Polyunsaturated fatty acids: Includes: C18:2n-6, C18:3n-3, C20:3n-9, C20:3n-6, C20:4n-6, C20:5n-3, C22:4n-6, C22:5n-6, C22:5n-3 and C22:6n-3. ⁴ UI = Conversion index. ⁵ Includes: C18.2n-6, C20:4n-6 and C22:4n-6. ⁶ Includes: C18:3n-3, C20:5n-3 and C22:6n-3.