Boiadzhiev N
Vet Med Nauki. 1980;17(1):70-4.
It was established by studies on SGOT and SGPT of 659 trouts (S. irrideus) living in karst water at a definite nutrient regime, that serum glutamate-oxalacetate-transaminase and glutamate-pyruvate-transaminase differ in the various age groups of the trout. Highest values were assessed in the two-year old male trouts. Highest mean SGOT and SGPT activity was observed in all age groups during the winter. Lowest SGOT activity was assessed in the summer, while the lowest SGTP activity--in autumn.