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Table 4 The activity of catalase in some organs of birds exposed to cyanide directly and in their feed

From: The chronic effects of cyanide on oxidative stress indices in the domestic chicken (Gallus domesticus L.)

Groups Direct exposure Exposure via food
Organ I (control) II (1 mg CN−1/kg bwt) III (2 mg CN−1/kg bwt) IV (3 mg CN−1/kg bwt) V (1 mg CN−1/kg bwt) VI (2 mg CN−1/kg bwt) VII (3 mg CN−1/kg bwt)
4 weeks exposure
 Liver 1.12 ± 0.04a 0.98 ± 0.06a 0.87 ± 0.03b 0.75 ± 0.09c 1.01 ± 0.05a 0.92 ± 0.07a 0.83 ± 0.09b
 Kidney 0.83 ± 0.03a 0.77 ± 0.07a 0.64 ± 0.06b 0.54 ± 0.08c 0.80 ± 0.03a 0.70 ± 0.05ab 0.61 ± 0.08b
 Heart 1.05 ± 0.07a 0.94 ± 0.09a 0.82 ± 0.07b 0.71 ± 0.05c 0.98 ± 0.09a 0.85 ± 0.03b 0.78 ± 0.06b
 Brain 0.99 ± 0.07a 0.90 ± 0.04a 0.79 ± 0.05b 0.66 ± 0.04c 0.92 ± 0.08a 0.81 ± 0.06b 0.76 ± 0.03b
8 weeks exposure
 Liver 1.28 ± 0.02a 1.22 ± 0.07a 1.08 ± 0.06b 0.82 ± 0.05c 1.24 ± 0.06a 1.14 ± 0.03ab 1.01 ± 0.06b
 Kidney 0.94 ± 0.08a 0.89 ± 0.06a 0.78 ± 0.07b 0.60 ± 0.06c 0.91 ± 0.04a 0.81 ± 0.04b 0.72 ± 0.05b
 Heart 1.22 ± 0.05a 1.15 ± 0.04a 0.95 ± 0.04b 0.72 ± 0.08c 1.18 ± 0.07a 0.97 ± 0.06b 0.86 ± 0.08b
 Brain 1.06 ± 0.04a 0.94 ± 0.05b 0.83 ± 0.09b 0.70 ± 0.03c 1.00 ± 0.04a 0.91 ± 0.03a 0.80 ± 0.04b
12 weeks exposure
 Liver 1.31 ± 0.04a 1.24 ± 0.07a 1.13 ± 0.08b 0.96 ± 0.09c 1.26 ± 0.04a 1.19 ± 0.06b 1.06 ± 0.12b
 Kidney 1.01 ± 0.09a 0.93 ± 0.12a 0.83 ± 0.07b 0.60 ± 0.09c 0.99 ± 0.08a 0.90 ± 0.08b 0.72 ± 0.04d
 Heart 1.26 ± 0.70a 1.18 ± 0.09a 1.03 ± 0.06b 0.81 ± 0.08c 1.21 ± 0.09a 1.05 ± 0.05b 0.90 ± 0.10b
 Brain 1.19 ± 0.08a 1.12 ± 0.05a 0.99 ± 0.06b 0.78 ± 0.12c 1.14 ± 0.07a 1.03 ± 0.05b 0.89 ± 0.08b
  1. The results are expressed as mean ± standard deviation (n = 6)
  2. Means not sharing a common superscript (a, b, c, d) on the same row differ significantly (p < 0.05)
  3. The activity of catalase is given in K/min
  4. bwt body weight