Table 4.

Specific and total serum fatty acids (mg/mL) on d 45 of steers that were early weaned at 150 d of age (n = 24) or traditionally weaned at 210 d of age (n = 24) and then supplemented with a rumen by-pass lipid ration (RBL) or an isocaloric, isonitrogenous control diet (CON).

Fatty Acid	Early Weaning		Traditional Weaning			p-Value
	CON	RBL	CON	RBL	SEM	Weaning	Treatment	W × T 1
12:0	5.38	6.83	5.54	5.99	0.40	0.41	0.02	0.22
14:0	7.75	9.08	7.55	8.32	0.51	0.36	0.05	0.59
16:0	141.8	252.45	144.66	225.10	12.01	0.32	<0.0001	0.22
16:1	23.04	20.35	19.48	15.44	1.45	0.006	0.03	0.64
18:0	216.85	342.48	227.49	314.32	19.94	0.66	<0.0001	0.34
18:1 cis 9	9.69	16.79	6.07	6.62	1.39	<0.0001	0.009	0.02
18:1 tran 9	156.08	150.53	142.42	141.79	11.79	0.35	0.79	0.84
18:2	277.32	694.18	285.18	622.14	33.22	0.34	<0.0001	0.24
20:0	15.12	21.82	11.37	15.70	1.12	<0.0001	<0.0001	0.30
18:3	43.31	49.87	41.21	42.32	3.52	0.18	0.28	0.44
C20:4	31.54	36.85	35.75	37.75	2.34	0.65	0.03	0.95
Total FA	1014.44	1737.40	1043.60	1547.35	90.67	0.38	<0.0001	0.23

¹ Weaning by RBL treatment interaction.