Table 3.

Effect of dietary substitution of medium-chain triglycerides on growth performance of weanling pigs (n = 4).^a

Itemb	Control	MCT1	MCT2	MCT3	SEM	P-value
						Linear	Quadratic
Day 1 to 14
Average daily gain, g/d	218.02b	249.82a	265.89a	254.73a	6.23	0.011	0.041
Average daily feed intake, g/d	413.58	425.03	415.97	400.13	6.08	0.397	0.299
Feed efficiencyc, g/g	0.53b	0.59a	0.64a	0.64a	0.01	<0.001	0.093
Day 15 to 28
Average daily gain, g/d	445.00	426.79	441.25	402.50	7.80	0.108	0.494
Average daily feed intake, g/d	780.21	751.80	723.28	700.74	14.92	0.058	0.920
Feed efficiency, g/g	0.57	0.57	0.61	0.58	0.01	0.591	0.437
Day 1 to 28
Average daily gain, g/d	331.51	338.30	353.57	328.62	4.75	0.873	0.105
Average daily feed intake, g/d	596.89	588.42	569.63	550.44	7.85	0.028	0.712
Feed efficiency, g/g	0.56b	0.58ab	0.62a	0.60ab	0.01	0.051	0.220

SEM = standard error of the means.

Values with different lowercase letters in the same row are different (P < 0.05).

^aFour replicates with five barrows and five gilts per pen.

^bControl, diet contained 3.5% soybean oil (SO); MCT1, diet contained 0.7% medium-chain triglycerides (MCTs) and 2.8% SO; MCT2, diet contained 1.4% MCTs and 2.1% SO; MCT3, diet contained 2.1% MCTs and 1.4% SO.

^cFeed efficiency was calculated by dividing the average daily gain by its average daily feed intake.