Table 2.

Effect of SSGL on growth performance of broilers.¹

Item	SSGL, mg/kg				SEM	P-value
	0	100	200	500		Multiple range test	Linear	Quadratic
1 to 21 d of age
ADFI, g/d	53.0	52.6	52.2	52.8	0.37	0.58	0.22	0.95
ADG, g/d	33.5	34.0	33.3	33.0	0.53	0.58	0.81	0.46
F:G ratio	1.58	1.55	1.55	1.60	0.37	0.34	0.77	0.35
22 to 44 d of age
ADFI, g/d	135.7	138.0	138.0	138.1	0.86	0.18	0.079	0.24
ADG, g/d	70.4b	74.0a	74.0a	74.2a	0.70	0.004	0.003	0.028
F:G ratio	1.93a	1.87b	1.87b	1.86b	0.01	0.006	0.003	0.031
1 to 44 d of age
ADFI, g/d	98.1	99.2	99.0	99.3	0.57	0.45	0.19	0.53
ADG, g/d	53.6b	55.8a	55.5ab	55.4ab	0.46	0.017	0.026	0.027
F:G ratio	1.83a	1.78b	1.78b	1.79ab	0.01	0.01	0.23	0.016

SSGL = sporoderm-broken spores of Ganoderma lucidum; ADFI = average daily feed intake; ADG = average daily gain; F:G ratio = feed:gain ratio, equal to ADFI/ADG.

^{a, b}Means with different superscripts within the same row are different (P < 0.05).

¹Each value represents the mean of 5 replicate values.