. 2020 Jul 3;99(10):4892–4903. doi: 10.1016/j.psj.2020.06.028

Table 4.

Effects of dietary quercetin on the internal organ index of broiler chickens fed with oxidized oil.

Item		Treatment¹						P-value, t-test	Linear	Quadratic	P-value
Item		Ctr	Ox	OxL	OxM	OxH	SEM	P-value, t-test	Linear	Quadratic	P-value
11 D	Liver	3.920	4.090	4.230	4.430	4.010	0.0560	0.272	0.600	0.022	0.102
	Spleen	0.063	0.059	0.067	0.062	0.061	0.0020	0.631	0.914	0.356	0.493
	Bursa of Fabricius	0.200	0.186	0.196	0.180	0.204	0.0060	0.464	0.490	0.611	0.682
18 D	Liver	2.950	3.380∗	3.200	3.380	3.510	0.0510	0.005	0.141	0.297	0.197
	Spleen	0.069	0.066	0.069	0.063	0.071	0.0020	0.625	0.625	0.601	0.704
	Bursa of Fabricius	0.255	0.201	0.239	0.224	0.187	0.0090	0.054	0.359	0.100	0.249
42 D	Liver	2.180	2.410∗	2.750	2.460	2.340	0.0590	0.042	0.346	0.193	0.171
	Spleen	0.095	0.079	0.087	0.07	0.087	0.0040	0.145	0.582	0.994	0.800
	Bursa of Fabricius	0.038	0.041	0.046	0.046	0.041	0.0020	0.682	0.727	0.229	0.635

∗Means were significantly different compared with the control. Means within 4 treatments (Ox, OxL, OxM, and OxH) lacking a common superscript differ (P < 0.05).

Abbreviation: Ctr, control group.

Ctr: basal diet; Ox: basal diet with oxidized oil; OxL: basal diet supplemented with oxidized oil and 200 ppm of quercetin; OxM: basal diet supplemented with oxidized oil and 400 ppm of quercetin; OxH: basal diet supplemented with oxidized oil and 800 ppm of quercetin.