The Effects and Mechanism of Quercetin Dietary Supplementation in Streptozotocin-Induced Hyperglycemic Arbor Acre Broilers

Table 5

The effects of quercetin dietary supplementation on activities of antioxidant enzymes in liver of STZ-induced AA broilers (U mg^-1 of protein).

Measurements	NC	HC	0.02% Que	0.04% Que	0.06% Que
SOD	258.96 ± 22.99	236.76 ± 18.36	256.68 ± 20.36	251.61 ± 24.33	256.15 ± 18.22
GSH-Px	37.51 ± 1.52^a	37.41 ± 1.41^a	36.48 ± 1.47^a	28.85 ± 3.46^b	36.50 ± 1.69^a
CAT	18.04 ± 1.57^ab	19.20 ± 1.88^b	10.81 ± 1.40^c	21.02 ± 1.44^a	18.49 ± 1.10^ab

Antioxidant enzymes: SOD (superoxide dismutase), CAT (catalase), and GSH-Px (glutathione peroxidase). NC (normal control broilers), HC (STZ-induced broilers), and quercetin (0.02%, 0.04% and 0.06%) groups. Statistical analysis was performed by one-way ANOVA followed by Tukey’s test. Values are expressed as means ± S.D. and n = 10. Values with different letters are significantly different P < 0.05 (GSH-Px) and P < 0.01 (CAT).