Table 1. Changes growth performances of finishing pigs supplemented with humic acid and blueberry leaf powders

		Treatments
	Period (wk)	CON	T1	T2	T3	T4	T5
Weight (kg)	0	60.4	60.3	60.1	60.2	60.4	60.5
	4	83.4	83.6	83.1	84.3	84.6	84.3
	7	102.9	105.5	103.9	105.4	106.2	106.0
ADG (kg)	0–4	0.820	0.832	0.822	0.860	0.865	0.849
	5–7	0.928	1.043	0.993	1.006	1.025	1.039
	0–7	0.867	0.922	0.895	0.922	0.934	0.930
ADFI (kg)	0–4	2.610^c	2.674^c	2.477^d	2.795^b	2.807^b	3.052^a
	5–7	3.232^b	3.498^a	3.658^a	3.275^ab	3.247^ab	3.255^ab
	0–7	2.876^b	3.012^a	2.988^ab	2.986^ab	2.988^ab	2.968^ab
FER (kg)	0–4	0.341^ab	0.314^ab	0.336^a	0.308^ab	0.308^ab	0.278^b
	5–7	0.288^b	0.306^ab	0.278^b	0.307^ab	0.315^a	0.319^a
	0–7	0.301	0.307	0.303	0.309	0.312	0.313

Means in the same row with different letters are significantly different (p<0.05).
CON, no addition; T1, blueberry leaf powder 0.1%; T2, blueberry leaf powder 0.2%; T3, humic acid 2%; T4, humic acid 2%+blueberry leaf powder 0.1%; T5, humic acid 2%+blueberry leaf powder 0.2%; ADG, average daily gain; ADFI, average daily feed intake; FER, feed efficiency rate.