Table 6.

Effects of Forsythia suspensa extract on apparent total tract digestibility of nutrients in broilers (%).

Item	CTL1	CTC1	FSE1	SEM	P-value
Dry matter	71.90b	74.81a,b	75.38a	0.76	0.04
Organic matter	74.79b	77.42a,b	78.01a	0.67	0.03
Gross energy	74.89b	77.39a	77.85a	0.72	0.05
Crude protein	61.44	66.40	64.15	1.85	0.24
Ether extract	89.86	91.95	89.52	0.70	0.10
Total carbohydrates	77.51b	79.45a,b	81.13a	0.47	<0.01
Neutral detergent fiber	47.20	45.36	42.58	2.89	0.56
Acid detergent fiber	27.74	16.72	15.76	3.72	0.11
Calcium	38.81	45.61	39.82	3.13	0.32
Phosphorus	46.34b	51.05a	52.59a	1.46	0.05

^a,bDifferent superscripts within a row indicate a significant difference (P < 0.05).

¹CTL: Control; CTC: Chlortetracycline; FSE: Forsythia suspensa extract.