Effects of Different Dietary Selenium Sources on the Meat Quality and Antioxidant Capacity of Yellow Catfish (Pelteobagrus fulvidraco)

Table 10

Effects of different dietary selenium sources on hepatic and plasma antioxidant enzymes of yellow catfish.

	Control	Na2SeO3	Se yeast	Se–SP
Liver
GPX	69.39 ± 12.91^a	85.15 ± 7.53^ab	115.02 ± 12.71^b	104.92 ± 10.20^b
GR	5.16 ± 0.89	6.80 ± 1.21	6.95 ± 1.19	6.69 ± 1.22
SOD	239.59 ± 11.71	223.58 ± 12.79	236.54 ± 13.43	262.60 ± 13.09
CAT	449.75 ± 25.81^a	558.49 ± 33.3^ab	606.57 ± 90.28^ab	751.87 ± 91.14^b
MDA	1.58 ± 0.12^b	0.99 ± 0.33^a	0.80 ± 0.05^a	1.04 ± 0.11^a
Plasma
GPX	195.43 ± 16.10^a	187.26 ± 10.72^a	251.53 ± 11.21^b	183.89 ± 13.82^a
SOD	166.75 ± 9.42	173.84 ± 11.05	182.10 ± 8.92	185.09 ± 8.50
MDA	10.71 ± 0.69	9.96 ± 0.82	10.76 ± 0.72	11.85 ± 0.91

GPX, glutathione peroxidase, U/mg protein in liver and U/mL in plasma; GR, glutathione reductase, U/g protein; SOD, superoxide dismutase, U/mg protein in liver and U/mL in plasma; CAT, catalase, U/mg protein in liver and U/mL in plasma; MDA, malondialdehyde, nmol/mg protein in liver and nmol/mL in plasma. Values are expressed as the means ± SEs (n = 6); different letters represent statistically significant differences ().