Table 2. Fatty acid composition and content (mg/g) in yolks of Beijing You Chicken and Dwarf Beijing You Chicken eggs

Fatty acids	BYC	DBYC	p-value
C14:0	1.37±0.31	1.53±0.13	0.28
C15:0	0.21±0.05	0.26±0.04	0.09
C16:0	32.72±2.30	37.50±2.55	0.65
C17:0	0.80±0.20	0.76±0.38	0.85
C18:0	28.23±2.48	26.39±2.12	0.76
C20:0	0.13±0.03	0.18±0.02	0.03
SFA	63.46±3.70	66.62±3.13	0.79
C16:1 n-7 cis	7.23±0.91	0.09±0.01	0.002
C18:1 n-9	6.54±1.18	78.17±2.00	<0.001
C20:1 n-7 cis	0.057±0.05	0.09±0.08	0.42
MUFA	13.82±3.73	78.34±3.06	<0.001
C18:2 n-6 cis LA	30.13±1.85	34.10±2.18	0.07
C18:2 n-6 c-9,tr-11	0.06±0.00	0.08±0.01	0.51
C18:3 n-6 cis GLA	0.45±0. 09	0.54±0.07	0.11
C20:3 n-6 cis	0.58±0.19	0.90±0.12	0.03
C20:4 n-6 cis ARA	8.90±0.75	9.98±0.96	0.22
C22:5 n-6 cis	3.16±0.63	3.50±0.65	0.64
n-6 PUFA	43.28±2.74	49.12±2.78	0.06
C18:3 n-3 cis ALA	1.65±0.39	2.14±0.38	0.05
C20:3 n-3 cis	ND	0.02±0.00	0.18
C20:5 n-3 cis EPA	ND	0.78±0.09	0.36
C22:5 n-3 cis DPA	0.39±0.02	0.72±0.02	0.02
C22:6 n-3 cis DHA	4.73±0.77	4.69±0.59	0.91
n-3 PUFA	6.77±1.30	8.34±2.77	0.24
PUFA	50.05±1.68	57.46±1.40	0.02
UFA	63.88±1.70	135.80±1.35	<0.001
n-6/n-3 PUFA	6.58±0.16	6.33±0.64	0.77

Data are reported as means±SEM (n=6).
BYC, Beijing You Chicken; DBYC, Dwarf Beijing You Chicken; SFA, saturated fatty acids; MUFA, monounsaturated fatty acids; LA, linoleic acid; GLA, γ-linolenic acid; ARA, arachidonic acid; n-6 PUFA, n-6 polyunsaturated fatty acids; ALA, α-linolenic acid; ND, not detected; EPA, eicosapentaenoic acid; DPA, docosapentaenoic acid; DHA, docosahexaenoic acid; n-3 PUFA, n-3 polyunsaturated fatty acids. PUFA, polyunsaturated fatty acids; UFA, unsaturated fatty acids; n-6/n-3 PUFA, the ratio of n-6 polyunsaturated fatty acids to n-3 polyunsaturated fatty acids.