Table 2.

Analyzed diet composition (as-fed basis)¹

Analyzed composition, %2	Added MCFA, %3
		C6:0:C8:0:C10:04				C6:0	C8:0	C10:0
	0	0.25	0.5	1.0	1.5	0.5	0.5	0.5
7 to 11 kg
DM	89.15	89.02	89.02	88.91	88.58	89.66	89.22	89.10
CP	20.90	20.70	21.20	20.90	20.45	20.85	20.50	19.80
ADF	3.90	3.35	3.20	2.45	2.30	4.35	2.80	2.10
Ether extract	4.40	3.95	3.80	2.75	2.15	3.15	2.80	2.90
Ca	0.91	0.91	1.00	0.92	0.95	0.88	0.98	0.93
P	0.76	0.75	0.76	0.67	0.71	0.71	0.72	0.70
Hexanoic acid	0.02	0.10	0.12	0.32	0.47	0.46	0.06	0.03
Octanoic acid	0.01	0.09	0.13	0.33	0.54	0.06	0.44	0.03
Decanoic acid	0.01	0.09	0.15	0.39	0.66	0.03	0.03	0.53
Total MCFA5	0.03	0.28	0.40	1.04	1.68	0.54	0.52	0.59
11 to 23 kg
DM	88.38	88.45	88.19	88.38	87.97	88.67	88.35	88.40
CP	20.90	21.00	21.15	21.10	20.65	20.90	21.50	20.95
ADF	2.80	2.70	2.50	2.35	3.10	3.15	3.05	2.95
Ether extract	3.90	2.90	2.70	2.35	1.90	3.05	3.35	2.90
Ca	0.94	0.87	0.85	0.83	0.84	0.85	0.81	0.85
P	0.69	0.62	0.63	0.65	0.62	0.64	0.64	0.64
Hexanoic acid	0.02	0.07	0.15	0.24	0.50	0.41	0.02	0.01
Octanoic acid	0.01	0.06	0.15	0.29	0.55	0.04	0.37	0.01
Decanoic acid	0.02	0.07	0.18	0.32	0.62	0.02	0.01	0.49
Total MCFA5	0.05	0.21	0.48	0.85	1.67	0.47	0.40	0.51

¹Treatment diets were fed to 360 pigs [DNA 400 × 200 (Columbus, NE); initial BW = 6.7 ± 0.07 kg] for 35 d in a 2-phase feeding program with 5 pigs per pen and 9 pens per treatment.

²Complete diet samples were collected following feed manufacture using a feed probe to create a composite sample, subsampled, and submitted to Ward Laboratories, Inc. (Kearney, NE) for proximate and the University of Missouri Agricultural Experiment Station Chemical Laboratory (Columbia, MO) for MCFA analysis performed in duplicate. Reported values are average of duplicate analysis.

³Sigma–Aldrich (St. Louis, MO). MCFA = medium-chain fatty acid.

⁴Consisted of a 1:1:1 blend of C6:0, C8:0, and C10:0.

⁵Sum of analyzed C6:0, C8:0, and C10:0 medium-chain fatty acids.