Table 2. Effects of dietary supplementation of glutathione-enhanced yeast culture on growth performance in broiler chicks¹⁾

Items	NC	PC	Glutathione-enhanced yeast culture			SEM
Items	NC	PC	0.1%	0.3%	0.5%	SEM
Initial body weight (g/bird)	43.9	43.6	43.6	43.5	43.7	0.01
Final body weight (g/bird)	1,646^d	1,784^a	1,689^c	1,715^bc	1,732^b	23.8
Body weight gain (g/bird/d)	45.8^d	49.7^a	47.0^c	47.7^bc	48.3^b	0.67
Feed intake (g/bird/d)	73.1^b	76.9^a	74.4^b	74.9^b	74.3^b	1.06
Feed conversion ratio	1.60^a	1.55^b	1.58^a	1.57^ab	1.54^b	0.02

NC : antibiotic-free diet, PC : basal diet with avilamycin+salinomycin.
Means within the same row with no common superscripts differ significantly (p<0.05).