The correlation between fish growth and several biochemical characteristics with reference to the steelhead Parasalmo mykiss Walb.

Churova, M. V.; Meshcheryakova, O. V.; Nemova, N. N.; Shatunovskii, M. I.

Correlation analysis demonstrated a statistically significant correlation of linear-weight characteristics of the steelhead rainbow trout (cultivated steelhead form) with an RNA/DNA ratio and the expression level of the gene encoding cytochrome c oxidase (CCO) in two-year-old individuals (1 ) as well as the expression level of the gene encoding the myosin heavy chain ( MyHC) and activities of the enzymes CCO and lactate dehydrogenase (LDH) in muscles and 1-glycerophosphate dehydrogenase (1-GPDH) and glucose-6-phosphate dehydrogenase (G6PDH) in the liver of two- and three-year-old individuals (1 and 2 ). With age, the correlation of 1-GPDH and G6PDH activities in the rainbow trout liver with the fish body weight increased, whereas their correlations with the body length reduced. The age- and sex-related distinctions in the MyHC gene expression and activities of the white muscle enzyme LDH and the liver enzymes 2-GPDH and G6PDH were detected in rainbow trout of both age cohorts.

TROUT; GENE expression; ENZYMOLOGY; MYOSIN; DEHYDROGENASES; GENETIC regulation

Biology Bulletin, 2010, Vol 37, Issue 3, p236

1062-3590

Academic Journal

10.1134/S1062359010030040