Table 8.

Impact of diet supplemented with betaine on fatty acid composition and intramuscular fat content of longissimus dorsi muscle in finishing Huan Jiang mini-pigs (% of total fatty acids).

Item	Control	Glycine	Betaine	SEM	P-value
FFA, mmol/g protein	0.43a	0.23b	0.23b	0.10	<0.01
IMF, %	4.45a	3.91b	3.99b	0.19	<0.01
C14:0	1.19a	0.87b	0.93b	0.12	<0.01
C14:1	0.05b	0.05a	0.05b	0.03	0.04
C15:0	0.09	0.09	0.10	0.04	0.55
C16:0	24.44	22.94	23.17	0.35	0.02
C16:1	3.26	2.90	2.86	0.22	0.16
C17:0	0.84	0.74	0.82	0.12	0.27
C18:0	12.85	12.95	13.13	0.27	0.68
C18:1n9t	0.13a	0.12b	0.12b	0.03	<0.01
C18:1n9c	32.21	31.53	32.00	0.41	0.66
C18:2n6c	15.98b	17.02a	16.58ab	0.32	0.10
C20:0	0.22a	0.18b	0.19ab	0.06	0.02
C18:3n6	0.15	0.16	0.16	0.05	0.38
C20:1	0.75	0.70	0.75	0.08	0.16
C18:3n3	0.30b	0.33a	0.33a	0.05	0.05
C20:2	0.40	0.44	0.43	0.08	0.43
C20:3n6	0.63	0.65	0.65	0.07	0.59
C20:4n6	6.00b	7.43a	7.14a	0.27	<0.05
C20:5n3	0.23	0.20	0.21	0.07	0.27
C22:6n3	0.23	0.25	0.23	0.08	0.75
SFA1	39.63a	37.77b	38.33b	0.37	0.01
MUFA2	36.41	35.31	35.77	0.43	0.43
PUFA3	23.93b	26.48a	25.73a	0.39	<0.01
PUFA:SFA ratio	0.61b	0.70a	0.67a	0.07	<0.01

FFA = free fatty acid; IMF = intramuscular fat; SFA = saturated fatty acid; MUFA = monounsaturated fatty acid; PUFA = polyunsaturated fatty acid.

^a,b Within a row, values with different superscripts differ significantly at P < 0.05 and a trend toward significance at P < 0.10. Data are expressed as means ± SEM, n = 8.

¹SFA = C14:0 + C15:0 + C16:0 + C17:0 + C18:0 + C20:0.

²MUFA = C14:1 + C16:1 + C18:1n9t + C18:1n9c + C20:1.

³PUFA = C18:2n6c + C18:3n6 + C18:3n3 + C20:2 + C20:3n6 + C20:4n6 + C20:5n3 + C22:6n3.