Table 2. Effects of dietary supplementation of grape seed proanthocyanidin on growth performance in broiler chicks^1),2)

	NC	PC	Proanthocyanidin		SEM	p-value
	NC	PC	10ppm	100ppm	SEM	p-value
Initial body weight (g/bird)	42.5	42.3	42.4	42.3	0.03	0.19
Final body weight (g/bird)	2,236.3^c	2,417.9^a	2,398.3^b	2,405.6^a	4.37	<0.05
Body weight gain (g/bird/d)	62.7^c	67.8^a	67.3^a	67.5^a	0.35	<0.05
Feed intake (g/bird/d)	109.0	110.6	111.1	112.1	0.78	0.34
Feed conversion ratio	1.74^a	1.63^c	1.66^b	1.65^bc	0.01	<0.01

Data are least squares means of 6 observations per treatment.
NC, antibiotic-free diet; PC, basal diet with avilamycin+salinomycin.
Means within the same row with no common superscripts differ significantly (p<0.05).