Table 3.

Effects of dietary squalene supplementation on the growth performance of diquat-challenged broilers.

Items1	Treatments			SEM2	P-value
	CON	DQ	DQ + SQ
Before challenge (1–20 d)
BW at 1 d of age, g	42.16	42.34	42.44	0.31	0.192
BW at 20 d of age, g	621.03	622.30	623.30	7.95	0.994
ADG, g/d/bird	28.95	29.00	28.99	0.40	0.998
ADFI, g/d/bird	43.71	43.58	42.62	0.70	0.806
G/F, g/g	0.66	0.67	0.68	0.01	0.522
After challenge (20–21 d)
BW at 21 d of age, g	669.08	643.50	656.92	8.79	0.522
ADG, g/d/bird	48.05a	21.20c	33.63b	2.89	<0.001
BW change rate, g/g	1.077a	1.034c	1.054b	0.005	<0.001

^a–cMeans within a row with different superscripts are different at P <0.05.

Abbreviations: CON, nonchallenged broilers fed with a basal diet; DQ, diquat-challenged broilers fed with a basal diet; DQ + SQ, diquat-challenged broilers fed with a basal diet supplemented with 1.0 g/kg of squalene.

¹G/F: BW gain-to-feed intake ratio; BW change rate is calculated as 21-d BW divided by 20-d BW.

²n = 6.