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Table 4 Clinical chemical parameters in blood of carp after different stunning methods

From: Stunning of common carp: Results from a field and a laboratory study

Stunning procedure N [number of fish] Calcium [mmol/l]c Cortisol [ng/mL]c Glucose [mmol/l] Hematocrit
[%]
Lactate [mmol/l] Magnesium [mmol/l] Potassium [mmol/l] Sodium
[mmol/l]
Total protein [g/l]
Percussive stunning
 1 5 2.5 ± 0.12 246.9 ± 142.25 7.3 ± 2.48 28.5 ± 5.54 4.8 ± 2.58 1.1 ± 0.21 2.5 ± 0.38 133.0 ± 4.38 27.1 ± 1.94
 2 2 2.2 ± 0.38 276.5 ± 7.78 16.6 ± 9.26 25.5 ± 3.53 8.7 ± 1.33 1.5 ± 0.21 2.0 ± 1.10 151.5 ± 13.44 50.5 ± 4.95
 3 6 2.4 ± 0.10 193.7 ± 54.18 2.7 ± 1.00 26.8 ± 2.92 5.7 ± 1.93 1.3 ± 0.11 2.5 ± 0.12 136.8 ± 3.37 21.5 ± 4.32
Summary Percussion 13 2.4 ± 0.18a 228.3 ± 99.94a 6.7 ± 5.63b 27.4 ± 4.16a 5.8 ± 2.44a 1.2 ± 0.21a 2.5 ± 0.43a 137.3 ± 8.08b 28.1 ± 10.40a
Electrical stunning
 4 10 2.9 ± 0.20 119.6 ± 82.48 2.6 ± 0.78 38.7 ± 8.88 8.9 ± 2.38 1.3 ± 0.27 1.8 ± 0.40 129.6 ± 8.54 29.4 ± 4.88
 5 6 2.3 ± 0.30 91.4 ± 32.94 3.9 ± 0.74 31.9 ± 4.34 1.2 ± 0.42 1.3 ± 0.17 2.7 ± 0.46 136.4 ± 17.32 28.9 ± 6.82
 6 10 2.3 ± 0.21 62.1 ± 44.71 3.2 ± 2.10 32.5 ± 3.81 3.5 ± 2.36 1.1 ± 0.18 2.1 ± 0.25 117.2 ± 8.77 24.2 ± 6.23
 7 6 2.5 ± 0.16 217.8 ± 35.18 3.4 ± 0.90 33.2 ± 3.19 10.2 ± 2.35 1.4 ± 0–18 5.1 ± 0.93 134.2 ± 0.02 24.0 ± 3.85
Summary Electrical stunning 32 2.5 ± 0.32a 114.0 ± 76.54b 3.2 ± 1.37a 34.4 ± 6.32b 5.9 ± 4.12a 1.2 ± 0.25a 2.7 ± 1.28a 128.112.68a 26.7 ± 5.94a
Electrical stunning followed by percussion
 8 6 2.5 ± 0.15 253.0 ± 72.35 6.0 ± 3.02 35.5 ± 4.28 4.1 ± 2.47 1.1 ± 0.16 3.3 ± 0.32 144.8 ± 8.32 35.0 ± 10.29
 9 10 2,6 ± 0.19 263.047.89 5.1 ± 1.10 35.3 ± 4.57 9.0 ± 2.00 1.6 ± 0.24 1.9 ± 0.54 147.0 ± 15.91 28.1 ± 5.30
 10 10 2,5 ± 0.33 89.7 ± 29.33 3.7 ± 0.96 31.9 ± 5.25 1.7 ± 1.30 1.2 ± 0.27 5.5 ± 8.82 138.1 ± 12.13 23.7 ± 8.15
 11 2 2.4 ± 0.03 62.9 ± 22.45 3.9 ± 1.34 29.5 ± 7.78 1.1 ± 0.26 1.3 ± 0.04 2.7 ± 0.24 143.0 ± 4.24 20.5 ± 2.12
 12 10 2.2 ± 0.32 71.6 ± 16.23 2.2 ± 0.35 25.6 ± 2.55 1.0 ± 0.43 1.2 ± 0.08 2.6 ± 0.44 131.3 ± 8.89 23.3 ± 2.50
 13 6 2.7 ± 0.20 66.6 ± 59.36 4.3 ± 1.81 37.9 ± 6.24 3.8 ± 1.22 1.4 ± 0.12 2.8 ± 0.62 133.8 ± 2.56 24.2 ± 3.43
 14 6 2.6 ± 0.10 81.7 ± 43.78 4.2 ± 0.74 40.2 ± 6.11 6.9 ± 1.67 1.5 ± 0.16 2.8 ± 0.61 133.0 ± 6.84 26.7 ± 2.88
 15 6 2.8 ± 0.49 337.7 ± 104.13 6.3 ± 2.23 41.8 ± 9.22 2.8 ± 1.09 1.2 ± 0.14 3.6 ± 0.37 115.5 ± 10.82 34.0 ± 4.15
 16 6 2.5 ± 0.07 112.2 ± 36.02 4.4 ± 0.37 38.3 ± 6.32 3.5 ± 0.65 1.4 ± 0.09 3.2 ± 0.54 135.8 ± 2.14 28.3 ± 3.83
 17 6 2,2 ± 0.18 135.7 ± 47.36 3.7 ± 1.77 35.3 ± 7.34 3.9 ± 1.05 1.1 ± 0.14 2.6 ± 0.16 117.7 ± 9.71 19.8 ± 3.97
Summary Electrical stunning followed by percussion 68 2.5 ± 0.31a 151.32 ± 105.96b 4.2 ± 1.83b 34.7 ± 7.26b 3.9 ± 3.00a 1.3 ± 0.23a 3.1 ± 3.43b 134.3 ± 13.66b 26.5 ± 6.86a
  1. Mean ± standard deviation
  2. Statistical evaluation was performed on measurements from individual fish in order analyse whether stunning success in individual fish had an impact on clinical chemical parameters of the blood
  3. a measurements of this parameter are not significantly different between farms
  4. b measurements of this parameter are significantly different between farms
  5. c Data distributed normally, statistical evaluation by ANOVA followed by Tukey’s post hoc test. Other parameter: Data distributed not normally, statistical evaluation by ANOVA on ranks followed by Dunn’s post hoc test. Data for a clinical chemical parameter sharing the same superscript letter are not significantly different (total n = 113)