Table 6.

Effects of supplementing 25(OH)D₃ to sow and their progeny diets on growth performance of wean-finish pigs during different phases of growth

Items	Sow diet	CON1)		TRT1)		SEM	Time2)	p-value
	Piglet diet	CON	TRT	CON	TRT			Sow diet effect	Piglet diet effect	Interaction effects
Body weight (kg)
Day 1		7.23	7.25	7.3	7.4	0.38	-	0.778	0.879	0.925
Day 42		25.3	25.99	25.91	26.89	0.46	-	0.105	0.077	0.792
Day 98		70.5	72.58	71.57	73.33	0.92	-	0.333	0.045	0.868
Day 140		106	110.67	108.5	110.9	1.38	<0.0001	0.415	0.023	0.534
Day (1 to 42)
ADG (g)		430	445.7	442.7	464	5.83	-	0.012	0.004	0.646
ADFI (g)		643	659.6	650.3	660.9	10.1	-	0.679	0.193	0.775
G/F		0.67	0.675	0.681	0.704	0.01	-	0.006	0.048	0.198
Day (43 to 98)
ADG (g)		808	832.05	815.2	829.4	14.1	-	0.872	0.186	0.729
ADFI (g)		1,642	1,671.2	1,649	1,670	20.3	-	0.88	0.215	0.848
G/F		0.49	0.496	0.494	0.498	0.004	-	0.683	0.343	0.891
Day (99 to 140)
ADG (g)		856	906.75	879.1	895.4	14.1	-	0.69	0.026	0.238
ADFI (g)		2,236	2,273.8	2,245	2,300	24.3	-	0.478	0.069	0.739
G/F		0.39	0.399	0.393	0.389	0.01	-	0.833	0.402	0.147
Overall (1 to 140 days)
ADG (g)		709	738.55	722.6	739.6	9.02	<0.0001	0.425	0.016	0.493
ADFI (g)		1483	1510.3	1490	1517	12.9	<0.0001	0.579	0.044	0.974
G/F		0.48	0.488	0.483	0.486	0.004	<0.0001	0.631	0.086	0.631

Values represent means of 8 replicate pens for each sow-wean to finish treatment combination with five pigs per pen for the four sow and post weaning combinations.

ADG, average daily gain; ADFI, average daily feed intake; G/F, gain:feed ratio; SEM, standard error of means.

¹⁾CON per kg diet: sow, 2,000 IU D₃; nursery, 2,500 IU D₃; growing and finishing, 1,750 IU D₃; TRT per kg diet: sow, 2,000 IU D₃+50 μg 25(OH)D₃; nursery, 2,500 IU D₃+50 μg 25(OH)D₃; growing and finishing, 1,750 IU D₃+50 μg 25(OH)D₃.

²⁾Data were analyzed using a repeated measure mixed model with initial value at the start of the experiment as a covariate.