Table 4. Effect of varying levels of barley supplementation on growth performance in weaning pigs¹⁾.

	Treatment2)				SEM3)	p-value
	B0	B10	B20	B30		Lin.4)	Quad.
Body weight5) (kg)
Initial	7.04	7.05	7.04	7.07	-	-	-
2 wk	10.46	10.02	9.49	9.58	0.320	0.01	0.22
4 wk	15.84	14.88	14.73	15.20	0.457	0.38	0.18
6 wk	23.96	23.08	22.91	24.18	0.064	0.87	0.13
Average daily gain (g)
0–2 wk	244	212	176	176	8.9	0.01	0.30
2–4 wk	384	348	374	402	14.3	0.54	0.27
4–6 wk	580	586	584	642	20.4	0.25	0.46
0–6 wk	403	382	378	407	10.4	0.92	0.15
Average daily feed intake (g)
0–2 wk	308	299	259	284	8.2	0.11	0.26
2–4 wk	728	688	704	682	16.1	0.35	0.76
4–6 wk	1,186	1,108	1,101	1,185	36.2	0.96	0.06
0–6 wk	741	699	688	717	17.9	0.41	0.12
Gain:feed ratio
0–2 wk	0.794	0.710	0.682	0.622	0.0171	0.01	0.72
2–4 wk	0.527	0.505	0.531	0.589	0.0145	0.10	0.24
4–6 wk	0.490	0.528	0.531	0.542	0.0011	0.17	0.63
0–6 wk	0.544	0.546	0.550	0.567	0.0061	0.31	0.49

¹⁾A total of 112 crossbred pigs were fed from average initial body weight 7.04 ± 1.39 kg.

²⁾B0, 0% barley was supplemented in each phase; B10, barley 10%; B20, barley 20%; B30, barley 30%.

³⁾Standard error of means.

⁴⁾Lin. (linear), Quad. (quadratic).

⁵⁾Values are means for four pens of four pigs per pen.