. 2023 Sep 20;102(12):103132. doi: 10.1016/j.psj.2023.103132

Table 5.

Effects of curcumin on liver antioxidant indexes of diquat-challenged broilers.

Items	Control group	DQ¹	The amount of curcumin			SEM²	P value
Items	Control group	DQ¹	50 mg/kg	100 mg/kg	150 mg/kg	SEM²	ANOVA	Linear	Quadratic
TAOC³ (U/mg prot)	40.81^*	33.75^a	37.38^a	39.85^ab	40.03^b	0.93	0.030	0.006	0.295
GSH-Px⁴ (IU/g prot)	45.99^*	38.98	39.08	39.64	39.13	0.61	0.985	0.741	0.884
SOD⁵ (IU/L prot)	766.10^*	608.34^a	651.46^ab	699.93^ab	734.88^b	19.84	0.390	0.017	0.908
CAT⁶(U/mL prot)	6.90	6.52	6.77	6.79	7.38	0.13	0.128	0.031	0.504
MDA⁷ (nmol/g prot)	2.39^*	2.82^b	2.08^a	2.03^a	1.75^a	0.12	0.001	<0.001	0.102

^⁎

There was significant difference (P < 0.05) between the control and DQ groups.

^a,b

Within a row, means with different superscripts differ significantly (P < 0.05). Values are means (n = 8).

^1–7

DQ, diquat group; SEM, the standard error of the means; TAOC, total antioxidant capacity; GSH-Px, glutathione peroxidase; SOD, superoxide dismutase; CAT, catalase; MDA, malondialdehyde.