Table 3.

Effects of different amounts of wheat aleurone inclusion in gestation diets on body weight, backfat thickness, weaning to estrus interval and feed intake of sows during lactation.

Item	Diet1			SEM	P-value2
	CON	15%WA	30%WA		Diet	Linear	Quadratic
No. of sows	22	21	23
Average sow parity	4.5	4.5	4.8
BW of sows, kg
Mating	228.3	223.7	226.9	2.9	0.81	0.86	0.81
Day 109 of gestation3	288.3	286.8	282.8	2.7	0.71	0.42	0.70
Gain3	59.9	63.1	55.9	1.9	0.28	0.37	0.31
Parturition	260.9	260.4	256.9	2.7	0.81	0.55	0.81
Weaning	247.4	251.4	244.9	2.8	0.64	0.70	0.64
Loss during lactation	13.5	9.0	11.9	1.4	0.42	0.69	0.42
Sow backfat thickness, mm
Mating3	17.5	17.5	17.2	0.5	0.92	0.82	0.97
Day 109 of gestation3	17.9	18.2	18.2	0.6	0.73	0.86	0.98
Weaning3	16.9	17.9	16.5	0.5	0.68	0.75	0.53
Backfat gain during gestation3	0.4	0.8	1.0	0.6	0.72	0.70	0.93
Backfat loss during lactation	1.1	0.3	1.7	0.4	0.40	0.51	0.40
Weaning to estrus interval3, d	4.2	4.1	4.1	0.1	0.83	0.53	0.80
Average daily feed intake4, kg
1st week of lactation	5.3	5.3	5.1	0.1	0.88	0.67	0.88
2 nd week of lactation	7.2	7.0	7.2	0.1	0.69	0.77	0.69
3rd week of lactation3	7.8	7.5	7.6	0.1	0.59	0.40	0.55
Mean of 1st week to 3rd week	6.8	6.6	6.6	0.1	0.71	0.49	0.71

¹CON, control diet group; 15% WA, 15% wheat aleurone diet group; 30% WA, 30% wheat aleurone diet group.

²Linear (L) and quadratic (Q) effects of inclusion amounts of wheat aleurone were contrasted.

³Results were analyzed using the Kruskal–Wallis test.

⁴Number of sows in CON, 15% WA and 30% WA is 19, 21 and 21, respectively.