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Table 1 Average of Superoxide dismutase (SOD), Catalase (CAT) and Glutathione S-transferase (GST) for collected Freshwater crayfish P. clarkii tissue from El-Gharbiya, Kafr El-Shaikh, and El-Menofya locations

From: Evaluation of freshwater heavy metals accumulation effect on oxidative stress, Metallothionein biosynthesis and histopathology of Procambarus clarkii (Girard,1985) collected from three locations in the Delta region, Egypt

Location

enzyme

Control

El-Gharbiya

El-Menofya

Kafr El-Shaikh

SOD

70.6 ± 0.265

84.833 ± 0.441 c

91.667 ± 0.426 b

97.367 ± 0.203 a

CAT

15 ± 1.155

24 ± 0.577 c

26.067 ± 0.233 b

28.5 ± 0.289 a

GST

3.3 ± 0.458

7.333 ± 0.285 c

7.733 ± 0.2028 b

7.9 ± 0.208 a

  1. aMeans highest significant
  2. bMeans significant difference number 2
  3. cMeans the lowest significant