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Table 4.

Enzyme activities in the red muscle of GH-transgenic and non-transgenic Atlantic salmon

Non-transgenic 4 monthTransgenic 4 monthNon-transgenic 7 monthTransgenic 7 monthMass correlationProbability
Protein n.a. 10.4±0.4 11.7±0.4 9.9±0.4 –0.32 1.000 
PK n.a. 98.5±5.1b 149.6±8.2a 101.1±4.2b –0.31 1.000 
AST n.a. 41.6±2.3 72.3±1.4 41.8±2.4 –0.43 1.000 
ALT n.a. 3.6±0.1 5.9±0.2 3.6±0.1 –0.44 0.992 
GDH n.a. 0.66±0.04 0.71±0.04 0.57±0.04 –0.35 1.000 
LDH n.a. 406.7±20.1 804.8±36.1 398.9±15.8 –0.43 1.000 
MDH n.a. 140.4±6.3b 276.2±7.4a 79.9±2.3c –0.69 0.002 
IDH n.a. 19.9±0.9b 26.6±1.4a 15.2±0.8c –0.65 0.012 
CS n.a. 16.7±0.7b 20.2±0.9a 10.2±0.4c –0.83 <0.001 
Non-transgenic 4 monthTransgenic 4 monthNon-transgenic 7 monthTransgenic 7 monthMass correlationProbability
Protein n.a. 10.4±0.4 11.7±0.4 9.9±0.4 –0.32 1.000 
PK n.a. 98.5±5.1b 149.6±8.2a 101.1±4.2b –0.31 1.000 
AST n.a. 41.6±2.3 72.3±1.4 41.8±2.4 –0.43 1.000 
ALT n.a. 3.6±0.1 5.9±0.2 3.6±0.1 –0.44 0.992 
GDH n.a. 0.66±0.04 0.71±0.04 0.57±0.04 –0.35 1.000 
LDH n.a. 406.7±20.1 804.8±36.1 398.9±15.8 –0.43 1.000 
MDH n.a. 140.4±6.3b 276.2±7.4a 79.9±2.3c –0.69 0.002 
IDH n.a. 19.9±0.9b 26.6±1.4a 15.2±0.8c –0.65 0.012 
CS n.a. 16.7±0.7b 20.2±0.9a 10.2±0.4c –0.83 <0.001 

All data are means ± s.e.m. and enzyme activities are expressed asμmol min–1 g–1 tissue and protein as mg g–1 tissue; sample size equals 8 or more for each group. Data were transformed when necessary to obtain normality (sine for AST, ALT and LDH, and log for MDH). Pearson correlations with Bonferroni probability were used to assess the correlation between mass and transformed enzyme activities. Enzymes were assessed at 22°C. PK, pyruvate kinase; see Table 3 for the list of other enzyme abbreviations. n.a.: red muscle could not be sampled from non-transgenic salmon at 4 months due to the small size of the fish. Different superscript letters indicate significant differences (one-way ANOVA, P<0.05, Tukey–Kramer, α<0.05) between non-transgenic and transgenic salmon

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