Table 2. Feedlot performance of the hair lambs supplemented with FA and CTL

Item	FA (ppm)1)		CTL (%)2)		SEM	p-value
	0	300	0	1		FA	CTL	FA × CTL
Initial body weight (kg)	34.10	33.39	33.78	33.70	0.97	0.619	0.956	0.619
Final body weight (kg)	45.55	45.39	45.57	45.37	0.65	0.866	0.833	0.673
Period 1 (d 0–20)
Average daily gain (kg/d)	0.248	0.259	0.249	0.258	0.03	0.736	0.787	0.456
Feed intake (kg/d, DM)	1.40	1.34	1.32	1.42	0.05	0.310	0.088	0.508
Feed conversion (kg DM)	5.74	5.44	5.19	5.99	0.56	0.618	0.182	0.641
Period 2 (d 21–40)
Average daily gain (kg)	0.343	0.330	0.349	0.324	0.03	0.708	0.444	0.740
Feed intake (kg/d, DM)	1.69	1.57	1.57	1.69	0.05	0.039	0.054	0.995
Feed conversion (kg DM)	4.54	4.91	4.35	5.11	0.37	0.357	0.065	0.488
Total (d 0–40)
Average daily gain (kg/d)	0.295	0.291	0.296	0.291	0.02	0.866	0.833	0.673
Feed intake (kg/d, DM)	1.52	1.46	1.45	1.53	0.05	0.264	0.142	0.809
Feed conversion (kg DM)	5.30	5.25	5.06	5.49	0.46	0.913	0.381	0.545

Lambs fed 0 or 300 ppm of ferulic acid through the 40-d feeding trial.
Lambs fed 0 or 1% of clinoptilolite through the 40-d feeding.
FA, ferulic acid; CTL, clinoptilolite; DM, dry matter.