THE HUMORAL EFFECTS OF EPIN IN SIBERIAN STURGEON (ACIPENSER BAERI BRANDT)
Halina Kolman
University of Warmia and Mazury in Olsztyn
ABSTRACT. Immersing Siberian sturgeon fry of an average body mass of 40 ± 4 g in epin solution (0.1 mg l-1) resulted in an increase of ceruloplasmin level over the entire experimental period (P < 0.001). The differences between the treated and control groups gradually increased reaching the maximum in the fourth and fifth weeks of the study when average levels of ceruloplasmin in the epin-treated group were 2.5 and 5.7-fold higher, respectively. In the control group, ceruloplasmin levels were considerably higher in the first four weeks in comparison to the last two weeks (P < 0.01). The bacteriolytic activity of lysozyme increased up to 50% compared to the control group (P < 0.05) in the first and fourth weeks. The sturgeon in the epin-treated group also showed from 10 to 65% higher concentrations of (-globulin levels than the control fish, and in the second week the difference was statistically significant (P<0.01). Simultaneously, total protein concentrations also increased (P < 0.05).
Key words: ACIPENSER BAERI, IMMUNOMODULATION, EPIBRASSINOLIDE, LYSOZYME, CERULOPLASMIN, (-GLOBULIN, TOTAL PROTEIN