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Blood chemistry and histological properties of wild and cultured sea bass (Dicentrarchus labrax) in the North Adriatic Sea

Histological and biochemical properties were employed to study liver histomorphology, plasma aspartate and alaine aminotransferases (AST, ALT), triglyceride (TRIG), cholesterol (CHOL), glucose (GLU) and total protein (TP) plasma levels of cultured (CSB) and wild sea bass (WSB) (Dicentrarchus labrax) from the notrhern part of the Adriatic Sea. Histopathological changes of livers included varying degrees of infiltration and lipid degeneration of hepatocytes in examined cultured fish. No significant differences between AST median values of CSB (44 IU) and WSB (45 IU) were observed. Values of ALT were <5 IU in both groups. TRIG, CHOL, GLU and TP levels were higher in CSB (2.08 mmol/L, 3.67 mmol/L, 10.66 mmol/L, 3.68 mmol/L, and 36 g/L, respectively). The study showed difference between plasma biochemical paramteters and liver histomorhology of CSB and WSB. This can be explained as a consequence of different diets (artificial in contrast to natural foods), which influence energy metabolism.

Adriatic Sea ; blood chemistry ; histology ; wild and cultured sea bass

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