Table 2.

Effects of graded levels of dietary squalene supplementation on the growth performance of broiler chickens from 0 to 42 d of age.

Items	Squalene level (mg/kg)					SEM	P-values
	0	250	500	1,000	2,000		ANOVA	Linear	Quadratic
0 to 21 d
ADFI (g/d/bird)	39.01	40.99	39.92	40.91	39.00	0.404	0.342	0.977	0.101
ADG (g/d/bird)	28.36	28.29	28.62	29.26	27.89	0.313	0.749	0.985	0.409
F/G (g:g)	1.38	1.45	1.40	1.40	1.40	0.012	0.472	0.969	0.363
22 to 42 d
ADFI (g/d/bird)	152.34	150.51	147.97	158.94	156.96	1.722	0.238	0.146	0.353
ADG (g/d/bird)	79.26c	81.08c	81.80b,c	91.35a	88.49a,b	1.304	0.004	0.001	0.952
F/G (g:g)	1.94a	1.86a,b	1.81a,b	1.74b	1.78b	0.022	0.042	0.005	0.234
0 to 42 d
ADFI (g/d/bird)	94.88	93.71	93.33	98.67	97.26	0.854	0.208	0.107	0.452
ADG (g/d/bird)	53.81c	54.69b,c	55.21b,c	60.30a	58.19a,b	0.687	0.006	0.001	0.765
F/G (g:g)	1.77a	1.72a,b	1.69a,b	1.64b	1.67b	0.014	0.037	0.006	0.154

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

Abbreviations: ADFI, average daily feed intake; ADG, average daily gain; F/G, feed to gain ratio.