Table 3.

Effects of different proportions of naturally oxidized corn oil on growth performance of broilers.

Parameter	OXA	OXB	OXC	OXD	OXE	SEM	P-value	P-linear	P-quadratic
BWG1/kg	2.31ab	2.19b	2.43a	2.32ab	2.24b	0.02	0.034	0.962	0.155
FI2/kg	3.88b	3.90b	4.14a	4.18a	3.89b	0.03	0.006	0.187	0.004
FCR3	1.71	1.78	1.72	1.79	1.73	0.01	0.291	0.536	0.243

Abbreviations: OXA, basal diet with 0% naturally oxidized oil; OXB, basal diet with 25% naturally oxidized oil; OXC, basal diet with 50% naturally oxidized oil; OXD, basal diet with 75% naturally oxidized oil; OXE, basal diet with 100% naturally oxidized oil.

^abDifferent letters in the same row indicate significant differences (P < 0.05), and the same letter means no significant difference (P > 0.05).

¹BWG, body weight gain, kg/bird.

²FI, feed intake, kg/bird.

³FCR, feed conversion ratio.